#help-with-linux-sbcs

1 messages · Page 7 of 1

rotund pivot
#

maybe of photo of the hgardware would help

waxen bane
#

header and jumper

rotund pivot
#

ok

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can you post the current code, and describe the behavior when it runs?

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exceptions, serial print output, etc

waxen bane
# 
from time import sleep

servo = AngularServo(2, min_pulse_width=0.0006, max_pulse_width=0.0023)

while (True):
    servo.angle = 90
    sleep(2)
    servo.angle = 0
    sleep(2)
    servo.angle = -90
    sleep(2)```
#

and no movement from the servo at all

rotund pivot
#

now you're onto a 3rd GPIO library :p

waxen bane
#

smh idk what im doing

#

i just saw that was the one to use for hooking up right to the pi

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unfortunetly i have to head to bed for work tomorrow 😦 im going to try some more trouble shooting after work

#

thanks for all the help @rotund pivot

rotund pivot
#

if you think some pins are fried, that can be tested with little code next time you're working on it

waxen bane
#

raspi-gpio get 2,3?

#

tried that

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none of them are requesting any power

muted ether
#

another thing to note, if you are running a little display as a service (for system stats or something), I had to change how that was done. Rather than running it through /usr/bin/python3, it looks like this now:

#

[Unit]
Description=OLED Display
After=multi-user.target

[Service]
Type=idle
ExecStart=/home/pi/.pi/bin/python3 /home/pi/piprojects/waveshare_base_b/oled_display_service/display_stats_adafruit_ssd1306.py
Restart=on-abort

[Install]
WantedBy=multi-user.target

zenith crystal
#

lovely (used both sarcastically and for the workaround) 😈

vocal lava
#

I guess it was an upstream Debian decision - the only way to install something via pip is to do it in a virtual environment

tiny fable
#

The only PEP I have memorized coolcrying

dusk flower
#

Does anybody know whether OPi5+'s GPIO is the same as RPi's one?

broken shuttle
#

Different chip, so it won't be identical. That being said SBC vendors will usually try to line up as best they can.

dusk flower
#

Ye, found their datasheet.
Pwr pins are the same, so are the gpio, only their alt confs differ in some pins

broken shuttle
#

Yeah, so the question is whether the HAT you are going to use supports the right alt functions.

dusk flower
#

No plan on doing so anyway

velvet rampart
#

it would be something like gpiod you would be using, let me show you a sample of what worked

#

`# import gpiod
import time
import Adafruit_GPIO.SPI as SPI
import Adafruit_MCP3008

import uinput

SPI_PORT = 0
SPI_DEVICE = 0
mcp = Adafruit_MCP3008.MCP3008(spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE))
left_stick_x = 0
left_stick_y = 1

chip = gpiod.chip(4)

# 32 x GPIO"X" + 8 * GPIO_"BANK" + GPIOX_BANK"LINE" = PIN

# pinCalc = 32 * GPIO_LABEL + 8 * CHIP + LINE

pin = chip.get_line(0)

config = gpiod.line_request()

config.consumer = "Line"

config.request_type = gpiod.line_request.DIRECTION_INPUT

pin.request(config)

while True:
# print(pin.get_value())
print(mcp.read_adc(left_stick_x))

time.sleep(0.02)`
#

depending on what u are trying to do you would need various overlays such as a the spi overlay, like if you're using armbian it would be armbian_add_overlay etc. it's quite verbose in order to utilise gpio with rock and i imagine rock is similar

#

but they do work ^^

faint sparrow
#

how can I see what this build has installed, and how do I get the nano editor? all commands that I know and random google suggestions seems to not be installed/known by buildroot

image.png
zenith crystal
#

you don't have "normal" OS options here, apparenlly -- this is a very constrained sandbox; according to the README try make menuconfig?

velvet rampart
faint sparrow
faint sparrow
#

to sum up I wanted to change the interface from a dhcp to a static ip, but within the console I cant open the file, while on stuff like mobaxtime, it saves the file, but it doesnt look like its actually applied to the machine, since the ip its the same

velvet rampart
#

Is this because your printer IP is changing dynamically and you want to set it to not change? I'd say why not just lock it on your router side that way your router will follow instead of messing around there

#

To install apt is a few steps, there are guides out there

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But who knows what will work if you are on some sort of creality Linux

faint sparrow
zenith crystal
#

the README for buildroot indicates that it's a reduced OS for cross-compilation, so that makes me wonder what in the world you're doing with IP addresses... 😕

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oh ... "crealty" from stej was the clue: second the motion on just supplying a non-changing DHCP supplied IP from the router

dusk flower
velvet rampart
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i ended up using gpiod. it worked fine with a helper function but ultimately gave up on that board. was too messy for my beginner skills

lucid nebula
#

Did XRDP get an update? I can't remote into my pi anymore

wind heron
#

hi, did anyone follow the "1.3" 240x240 Kernel Module Install" tutorial lately? you cannot use python3 to install stuff anymore (the famous "This environment is externally managed") and the script fails, so I do not know how to carry on to get the module installed...

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I have tried with pipx and a virtual environment (venv), but it failed anyways

steady rose
#

there will be lots of things that will break due to changes in bookworm

#

it will take some time for the guides to get updated

wind heron
#

do you have any experience about how long i.e. if they get updated within a couple of weeks after a new version of the OS arises? I just bought the Adafruit Mini PiTFT and if I should expect no update until next year or so, then I could return it now before it is no longer possible

steady rose
#

easiest near term solution is to probably use the pi os release prior to bookworm

wind heron
#

yes, exactly

steady rose
wind heron
#

it seems that someone is already working on that, good news! thanks

steady rose
#

can keep an eye on that issue thread for progress

muted ether
bright glen
#

Alright i'm hoping this is ths best chat to help me with my current issue, if not, then which one of the help ones would be. I have been trying to get my i2c pi oled hat to work on a raspberry pi 4 and have been unsuccesful. I have utilized the walkthrus on the adafruit site, as well as reading within the raspberrypi documenation about pip and venv.

I removed all the configuration as best I knew how, then added another venv, installing adafruit within the venv, pip, pillow, etc. Ran the raspi-blinka.py. I attempted to # out line 48 as I saw somewhere else within discord that can an issue /shrug
When I run $ python blinktest.py
Hello blinka!
Digital IO ok!
I2C ok!
SPI ok!
done!

when I run the pyhton3 stats.py it times out. I clear it and run again with -v and it's stopping at this point

import 'microcontroller.pin' # <_frozen_importlib_external.SourceFileLoader object at 0x7fa2b3ea90>
import 'microcontroller' # <_frozen_importlib_external.SourceFileLoader object at 0x7fa2b32010>
this is all i'm getting on my display

steady rose
#

see if it shows up in an i2c scan

woeful wigeon
#

Hi, I want to ask, is it possible for the raspberry pi to update itself using a .img file on a USB flash drive ? So like let's say my Raspberry pi is up and Running using the Raspberry pi Buster OS (desktop version), is it possible for the raspberry pi to update itself whenever the USB flash drive is detected and there's a .img file inside the Flash drive?

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ChatGPT gave me this answer but i'm not confident that this is gonna work

Screenshot_2023-10-21_at_2.39.41_AM.png
rancid kindle
woeful wigeon
# rancid kindle Definitely do *not* follow those instructions. They'll overwrite the contents of...

Okay so i have developed a system on raspberry pi and i want to deploy it in the field But in the field there will be no Internet connection ever so my software can't get over the Air updates and i can't be there in the field so i need a method of updating the software on the raspberry pi using a USB flash drive that i can handle over to a person Who can just plug the USB into the pi and pi update itself,
i can just overwrite my software Files using a simple script that copies the code from the USB flash drive to the internal storage of raspberry pi but what if in future there's some OS configuration i have to do in future to run my future software versions. So ideal method of update would be then to just flash the Raspberry pi SD card with the Custom OS image.

#

the raspberry pi is fitted inside an enclosure so there's no easy access to the SDcard, There's only 1 USB port of Raspberry pi Sticking out of the enclosure So... i need to do it over USB

broken shuttle
#

I think your first problem here is going to be that whatever SD card gets put in will die eventually.

rancid kindle
# woeful wigeon Okay so i have developed a system on raspberry pi and i want to deploy it in the...

That makes sense.

You might look at apt-offline. It can download files necessary to do an offline update on one system and then perform the offline update on another.

@broken shuttle's comment about SD cards is spot on, too. SD cards are not really very durable and aren't really designed for the kind of use they see in Raspberry Pi's. A good card might last a long time but it's really a gamble. Whatever you do if you're running off SD cards you'll need to be able to handle them failing.

UbuntuMint - Everything About Ubuntu Linux
Ravi Saive
apt-offline - An Offline APT Package Manager

apt-offline is an offline package management tool that is used to install/upgrade software packages with their dependencies on Debian-based Linux distributions.

woeful wigeon
zenith crystal
#

since this seems like you're not necessarily interested in keeping what's on disk, you could also just burn new SD cards for updates -- if there is any information that needs to be copied over, it could be done on a field laptop with an SD card reader and appropriate app/script (remove old card, insert into laptop, copy data, remove SD, insert new SD, copy data, remove from laptop and put into pi

#

you could also make a new image based on what's on the laptop since it sounds like you've got a manual component in here as well -- e.g. do the data copy thing as above, but instead of a pre-burned image, burn the new image then insert whatever data you need copied back over

bright glen
ivory heart
#

Hello, I'm currently adding leds to my 3d printers and housings using relays to turn them on/off.
I have an issue that is probably childsplay for most here.
I can run a script that turns it on and one that turns it off. But idk how to check the state so I can have one single script that either turns it on or off, depending on the state.
This works to switch the relay and turn the lights on:
`#!/usr/bin/env python3
import board
import digitalio
import time
from os import geteuid

led = digitalio.DigitalInOut(board.PA6)
led.direction = digitalio.Direction.OUTPUT

led.value = True`

#

Can anyone help me with a script that switches the light, if it's on turn it off, if it's off turn it on?

wind heron
#

the bug fix for the adafruit-pitft.sh script did not solve the issue, at least for the miniPiTFT 1.3". I posted on the issue thread, but I paste it here for the records in case no one follows a closed issue:
it still does not work for the miniPiTFT 1.3". I followed the "Easy Install" tutorial and I started the script as described:

sudo -E env PATH=$PATH python3 adafruit-pitft.py --display=st7789_240x240 --rotation=0 --install-type=console

The script runs and I see the following at the end:
PITFT fb_st7789v.ko: 3,916 B / 16.0 KiB = 0.239 <------------ "PITFT" text is red instead of green
PITFT Updating /boot/config.txt...
Already have adafruit-pitft-helper section in /boot/config.txt.
Removing old section..
PITFT Updating console to PiTFT...
Remove fbcp from /etc/rc.local, if it's there...
PITFT Failed to disable unit: Unit file fbcp.service does not exist. <------- "PITFT" is red again
Configuring boot/config.txt for default HDMI
Set up main console turn on
/boot/cmdline.txt already updated
Turning off console blanking
Setting raspi-config to boot to console w/o login...
PITFT Success!

Settings take effect on next boot.

REBOOT NOW? [Y/n]

After rebooting there is nothing on the miniPiTFT, just the backlight on like before.

zenith crystal
zenith crystal
woeful wigeon
zenith crystal
#

DOH!

#

i have an idea to make up for my lame one -- the LibreElec project has a way of downloading new images and updating itself: perhaps a similar mechanism might fit your needs

woeful wigeon
#

is it possible to disable this Pop up ?

Screenshot_2023-10-23_at_6.52.42_AM.png
#

in raspberry pi OS (Desktop)

#

nevermind, Found the solution

#

was very easy

dusk grotto
woeful wigeon
stoic dawn
#

So should I use Bullseye for Blinka until everything is sorted out?

zenith crystal
#

i've got Bookworm running and just re-installed all the blinka stuff via virtual env and it all worked, so not necessarily? i didn't have any of the permissions issues others have reported, so I'm not entirely sure what's different on my systems

zenith crystal
stoic dawn
wheat reef
#

Hi all, I'm using an ILI9341 TFT screen on a Jetson Orin Nano connected via SPI. I was hoping to create an interface on the screen using KTinker or PyGame but I'm not sure how to direct output of these libraries to the screen. On Raspberry PI I've seen people creating framebuffers for the screen and directing output there, but I'm running Ubuntu on a Jetson and haven't encountered any drivers that allow me to do this.

What I am doing currently and trying to avoid is updating the UI by redrawing an image with shapes drawn on using pillow, as this is pretty slow and unresponsive. Am I limited to uploading images via the CircuitPython library? Does anyone know the best practice for building responsive interfaces with these screens on the Jetson?

lean kiln
#

Okay, stifle the laughter, but I've got a new Pi5 and no official fan/heatsink, can I just run it with passive cooling or even no heatsinks? Assuming it would throttle but that's okay (fan on order)

hard pike
zenith crystal
rancid kindle
zenith crystal
ripe pike
#

Here's a tricky one:

I'm using a RPi 3A+ with bookworm to set up a hotspot using the command

nmcli device wifi hotspot ssid ... password ...

I can connect another nearby RPi 4 (also bookworm) to it.

But when I try a RPi Zero W, it just won't connect. I popped out the SD card, and placed it into a RPi Zero 2 W, and it works. All the RPis are next to each other.

What's up with RPi Zero W?

broken shuttle
ripe pike
#

This is the line of thought that I was thinking, but I think the hotspot is 2.4ghz. From the RPi4, I do:
iwconfig wlan0
and get

wlan0     IEEE 802.11  ESSID:"..."
          Mode:Managed  Frequency:2.437 GHz  Access Point: B8:27:EB:A8:F8:7E
          Bit Rate=65 Mb/s   Tx-Power=31 dBm
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=70/70  Signal level=-18 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
steady rose
#

"wont connect" = ?

#

can't find address?

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login error?

ripe pike
#

Not showing up in arp -n (run on the hotspot Rpi), can't ping it, etc

steady rose
#

does the ssid show up on the pi zero w?

ripe pike
#

I'm running it headless =\

steady rose
#

how are you running arp?

ripe pike
#

on the RPi with the hotstpot running. I can ssh into it.

steady rose
#

how? you said you are not able to connect to the pi running the hotspot from the pi zero w?

ripe pike
#

Maybe some confusion. I'm running a hotspot on a Pi (a 3A+), and can't connect a RPi Zero W to that hotspot. From my pc, I can connect to the hotstpot and ssh into the 3A+.

steady rose
#

on the pi zero w, does the pi 3a hotspot ssid show up?

ripe pike
steady rose
#

need to gain access somehow to be able to troubleshoot what is happening there

#

serial console cable is good option

lean kiln
ripe pike
# steady rose serial console cable is good option

I'm now able to SSH into the machine. Interestingly, when I run nmcli dev wifi list, I see my hotspot. When I try to connect, I get Error: Connection activation failed: Secrets were required, but not provided. hmmm

steady rose
#

hmmm indeed. not sure, but can hopefully figure it out now that youre accessing directly.

#

you started it with a password though. so does want something. password typo maybe?

ripe pike
#

it's not a password typo. I'll report back if I discover anything

ripe pike
#

So I can connect if I drop the security / password requirement in the hotspot => it's not some wifi 2.4ghz issue. Next is to add security back until it breaks

ripe pike
#

Hm, so if proto=rsn on the hotspot (which is WPA2), it fails, but if proto=wpa, it works. Something about firmware or drivers on the RPi Zero W?

stoic dawn
#

I was surprised to find that Blinka does not seem to have support for rotary encoders.

vocal lava
#

No, it does not. I remember the same surprise

stoic dawn
#

Does just reading the difference between clk and dt in a run loop work?

vocal lava
#

I don't remember, it's been a couple years since I've looked

stoic dawn
#

well I will just goof around then

solemn finch
#

bitbanging on linux tends to be pretty slow

#

even in circuitpython, rotaryio tends to use some sort of hardware capability

broken shuttle
#

Bit banging with anything other than a microcontroller is going to pretty much be inherently slow.

#

Even with the PREEMPT-RT (real time) kernel patches there will still be a significant delay due to the need to make system calls.

olive haven
waxen valve
#

but i think your still limited by the irq handling rate

dusk flower
fickle rose
#

so i'm trying to access a pi 3A+ over serial and the systemd logs go by fine but the login prompt is all messed up

steady rose
#

via the TX/RX on GPIO header?

fickle rose
#

ye

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and the cp2104 breakout (pid 3309)

steady rose
#

did you add enable_uart=1 to config.txt?

fickle rose
#

i enabled it with raspi-config

steady rose
#

and rebooted?

fickle rose
#

that line's there last time i checked

fickle rose
# 
[all]

enable_uart=1

yep

steady rose
#

baud rate difference maybe? what serial program are you using?

fickle rose
#

PuTTY

steady rose
#

if you're seeing all the boot stuff, should be ok though.

fickle rose
#

that displays fine

steady rose
#

what OS?

fickle rose
#

WIndows

steady rose
#

on the pi

fickle rose
#

rpi OS

#

the latest debian 12 image

steady rose
#

latest bookworm?

#

full or lite?

fickle rose
#

lite

steady rose
#

weird. never seen that.

#

can you actually log in if you try?

fickle rose
#

No, the characters i send are garbled too (at least the echoed characters)

steady rose
#

you're setting 115200 in putty?

fickle rose
#

Yes

steady rose
#

does SSH work ok?

fickle rose
#

Yes

steady rose
#

really weird. don't know. it's acting like something is changing the baud rate.

#

maybe try a different pi and see if the behavior repeats there?

fickle rose
#

This is my only pi

steady rose
#

try an older pi OS and see if the behavior repeats

fickle rose
#

The last pi i had (a 4B 8GB) died about 1.5 years ago

#

i'm trying the legacy image

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wait i know

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could octoprint be interfering with it?

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it was

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i blacklisted /dev/tty1 and it worked :D

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wait no it didn't

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what port is the serial pins?

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ttyS0?

steady rose
#

maybe /dev/serial0?

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which might just be a sym link

fickle rose
#

it is a symlink

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to /dev/ttyS0

steady rose
# 
pi@raspberrypi:~ $ ls /dev/ser*
/dev/serial0
pi@raspberrypi:~ $ ls -la /dev/serial0
lrwxrwxrwx 1 root root 5 Nov  1 08:41 /dev/serial0 -> ttyS0
pi@raspberrypi:~ $
fickle rose
#

so blacklist /dev/ttyS0 and /dev/serial0

#

after some brownout shenanigans it worked for real this time :)

#

disabling octoprint didn't fix it :/

muted ether
#

The hdmi stops working after following this.

fickle rose
#

i discovered that the audio seems to be forced to the 3.5mm jack

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removing the dtparam_audio = 1 line in /boot/config.txt seemed to fix it

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a fresh image didn't work? what?

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could it be the low power?

fickle rose
#

...it was the lack of power

#

it works fine now that i have a proper PSU connected

short cloud
#

Any idea when Blinka is coming out for the BeaglePlay?

waxen valve
#

which causes it to transmit at the wrong rate

waxen valve
fickle rose
#

So thermal throttling would also cause a baud change

waxen valve
#

yep

#

the problem is that ttyS0 generates its baud, by dividing down the VPU clock

#

so any change in the VPU freq will mess up the baud rate

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dtoverlay=disable-bt will disable the bluetooth controller, so ttyAMA0 is free to use on the gpio header

#

and ttyAMA0 has a stable baud rate

#

but low voltage will cause a number of other problems, and you shouldnt ignore it

fickle rose
#

Do you have any examples on what those problems are?

waxen valve
#

crashing and SD card corruption mostly

#

which can result in data loss, and you have to reinstall everything

dusk grotto
#

Would pico w questions work in this channel?

rotund pivot
dusk grotto
#

Alright thanks

sacred yoke
#

Hello!
I'm wondering if anyone here has experience with this module?
https://mangopi.org/mcoreh616
I'm looking for an affordable alternative to the raspberry pi with the flexibility to be modified

torn trench
#

I don't think I've heard of that one before. I've heard a lot about orangePi and rockPi I think?

#

what is "flexibility to be modified"? Open schematics? the beagleboard family of products is good about that, but they are pretty substantially more expensive than raspberry pis

waxen valve
#

ive talked with another user, about booting from spi flash, with support for booting over an rf link at any stage, so it could bootstrap itself even after a severe disk failure

fickle rose
#

how would i connect to a bluetooth PAN from the command line

#

i already have the connection but can't get the PAN working

sacred yoke
waxen valve
sacred yoke
#

A little bit cheaper ($30⁓), around the same price with lower specs str_sad

turbid rivet
sacred yoke
#

Exactly that! a SoM.
I'll look for those two modules. The one that I posted looks like is no well documented 😕
Thanks!

dense comet
#

I'm using omxplayer on a Pi Zero to play misic for an alarmclock. I want to keep the music compressed, but I have several tracks exported from Audacity as opus files that I'd like to include in the playlist. Can omxplayer handle these, or should I transcode them to something else it does know how to handle. Obviously I'd rather not do that since decoding and recompressing causes a slight quality loss.

zenith crystal
#

omxplayer –help?

dense comet
# zenith crystal `omxplayer –help`?

Provided a couple of pages of flags to the program, but no information about which codecs it groks. I finally gave it "trial by fire" by simply passing an opus file to it, and not entirely surprisingly, it played just fine. From what I'm seeing, omxplayer is somewhat the VLC of the Raspberry Pi universe, and therefore understands just about anything you can throw at it.
I'm in the process of moving away from MP3's, they are a horrible format. Opus will often get equivalent quality (i.e. transparent to my 60 plus year old ears) at about half the bit rate, with AAC and AC3 providing similar performance.

zenith crystal
waxen valve
#

omxplayer is more for video, and its being deprecated

humble marsh
#

the article is six years old, so things may have changed

waxen valve
snow timber
# waxen valve is it using `g_msd` or the composite /sys thing?

I've tried adding dwc2 to the config.txt and modules, tried with/withouth the otg_mode=1 uncommented/commented, without the dwc2 and with the default otg_mode=1 on the modprobe g_mass_storage command dmesg shows g_mass_storage: couldn't find an available UDC

waxen valve
snow timber
waxen valve
snow timber
#

as mentioned with that tried it with and without the otg_mode=1 commented out

waxen valve
#

one min

#

ah yes, otg_mode=1 is the worst thing you can set

#

that disables dwc

#

mode 0 puts the dwc in control

#

mode 1 puts the xhci in control, and thats host-only

snow timber
#

back to g_mass_storage gadget.0: userspace failed to provide iSerialNumber

waxen valve
#

after booting, what does dmesg | grep dwc return?

# 
root@pi400:~# modinfo g_mass_storage
parm:           iSerialNumber:SerialNumber string (charp)
#

thats because you need to provide a serial number when you modprobe

#

modprobe g_mass_storage iSerialNumber:SerialNumber=1234

#

i prefer the libcomposite method of configuring things

#

the comment on line 37 disables mass-storage, youll want to turn that back on

#

the serial and rndis parts are optional

snow timber
#

so using sudo modprobe g_mass_storage file=/piusb.bin stall=0 removable=1 iSerialNumber=1234 not seeing an error in dmesg but also not seeing a drive show up yet (Windows)

waxen valve
#

does the usb cable have data capabilities?

snow timber
#

will try a diff one

#

now it's trying windows giving error not recognized (not too surprising) but then drive disappears

waxen valve
#

look in device manager and see what it says there

snow timber
#

well now it's not even doing the popup for device detection and in dev mgr with show hidden (removed some failed ones) not seeing it in their either (even after doing a scan for hardware changes)

#

will try it in a pi and see

#

[87804.228195] usb 1-1.3: new low-speed USB device number 83 using xhci_hcd
[87804.229244] usb 1-1.3: Device not responding to setup address.
[87804.448666] usb 1-1.3: Device not responding to setup address.
[87804.668102] usb 1-1.3: device not accepting address 83, error -71
[87804.668525] usb 1-1-port3: unable to enumerate USB device

#

pi has bullseye on it

waxen valve
#

anything on the device side in dmesg?

#

which model of pi is the device?

snow timber
#

Thank you! last step appears to have been power related.. added separate power supply, ran the above then plugged in the usb cable into Windows and it gave the messages about checking the disk but now see the drive and the file in the bin

#

the pi is a 4 with 4gb ram.. but currently accessing the pi zero 2 w as a usb stick on Windows 11

waxen valve
#

ah

#

both the pi4 and pi02 can act as a usb device, but the pi4 needs a lot more current to function

snow timber
#

apparently the pi zero 2 w doesn't get quite enough to act as a usb device without the separate power supply.. I was able to ssh into it (connected over wireless)

#

on windows or with the same device connected to the pi 4

waxen valve
#

having the wifi active will increase its demands

snow timber
#

yep

waxen valve
#

then i can get a shell over usb, and leave the wifi off

snow timber
#

in this case was hoping to be able to then cp/rsync files off to another location (device that doesn't allow for remote/nas type storage)

waxen valve
#

ah

#

a while back, somebody was asking if there is a disk size limit, for the firmware booting from usb

#

so i came up with a crazy idea, use a pi-zero to emulate a 20pb usb disk 😛

#

thats when i discovered, the version of linux at the time, can only report the disk size as a 32bit int number of sectors

# 
> (Math.pow(2,32) * 512)/1024/1024/1024
2048

so it runs into the same 2TB limit as MBR schemes

snow timber
#

yeah, the mkfsdos with 32 (aka fat 32) in this case.. kinda limits it

#

but big enough for the use case

waxen valve
#

to get over that 32bit limit, you can either switch to 4k sectors
or get a newer linux kernel

#

i think the 6.1 in bookwork is fixed

snow timber
#

for this, not going to be a need for bigger

waxen valve
#

still useful to know for potential future projects

#

another thing you could mess with, is usb ethernet?

#

the pi can emulate a usb ethernet device, and then connect over that

snow timber
#

had wondered about using a usb nic and a usb hub (or hat), but when it initially wasn't working switch to getting it to work

midnight flume
#

I'm new to Raspbery Pi's. I don't understand the concept of sticking a hat on top of the active cooler. Is there an adapter switcher that will allow hats and bonnets to stick out of the side in the other direction instead of on top of the active cooler? Feel free to ping me as I usually don't hang out in here much.

#

I haven't installed anything yet. Will be working on designing a rather large case so everything is in one piece. Intending on using an M.2 SSD to USB3 as the main drive. Will that work?

olive haven
midnight flume
midnight flume
#

@olive haven Thank you. Added to cart.

#

I also forgot to get a power supply. 🤦‍♂️

#

Pimoroni says they're "In Stock" but when you click through it says "Pre-Order"... that kinda lame.

#

unsure how to power it, guess I just have to wait for the PSU's to come in stock somewhere.

vocal lava
midnight flume
vocal lava
midnight flume
#

Most of them are 5v 3A. The Pi psu is 5V 5A. If I put an addon usb camera for 3d printing timelapses just want to be sure theres enough power to go around.

zenith crystal
#

i have 5 pi's running with multiple hats, so here's my tricks:

  1. use a stacking header for those hats that do have "pin-through" type and the hats are in the same "direction"
  2. use a "shim" to break out some stuff (like the I2C shim)
  3. use a "breakout" style board like https://www.adafruit.com/product/3182
Pimoroni Mini Black HAT Hack3r - Fully Assembled

A nifty little breakout from our friends at Pimoroni that lets you access all of the GPIO pins while also running a HAT or pHAT on your Raspberry Pi Model Zero, 5, 4, 3, 2, A+, or B+ ...

#

i also have not put any in cases, but rather (mis-)use various "cluster" stacking enclosures so everything is basically in one place, but open(-sh) and (somewhat) accessible

rancid kindle
#

Anker is great for power supplies.

I don't know of any 3rd party power adapters that will provide 25W to the Pi 5 yet, unfortunately. The 5V 5A thing is out of spec 😦

I picked up a 4GB Pi 5 and an 8GB Pi 5, each with the official power supply and the vendor only shipped one power supply, still trying to sort that out :/ This is definitely going to be a Pi 5 pain point.

mossy obsidian
#

maybe it's for like the IO board and such, or something else. everything I'm reading states it only takes in 5V though

zenith crystal
#

iirc those look like "fast charge" values

mossy obsidian
#

perhaps to be handy for charging phones or batteries that you might want to try running it off of I suppose

olive haven
#

The product brief says "Additional built-in power profiles mean the Raspberry Pi 27W USB-C Power Supply is also an excellent option for powering third-party PD-compatible products".

mossy obsidian
#

well that's that then

rancid kindle
zenith crystal
#

i've got one of those multiport power charger things (100w) and i've got everything plugged into it

midnight flume
fickle rose
#

Is there a way to see how many write cycles are left on a card?

rotund pivot
#

I think there are some 3rd-party tools, in some cases the card manufacturer. it may vary by block, but it should be possible to get a general sense of card health (nothing close to exact)

fickle rose
#

i just wanna know roughly how close my card is to death

broken shuttle
#

Since you are asking this now I think "imminent" is a reasonable assumption. However, anecdata is correct. SD cards have no health reporting mechanisms. Over time they sort of just... fail. There can be a few different failure mechanisms, but they often go read only or the OS reports a bunch of write errors.

fickle rose
#

I’ve never had a card fail in a pi

#

The reason i’m asking is i’m reusing the card from my switch that it was used in for years

#

why do kernel headers take like a decade to install it’s been going for at least 3 hours

broken shuttle
fickle rose
#

I don’t

languid atlas
#

Hello everyone

#

I am designing a new Linux SBC with Sony IMX586 48MP, 7" inch touchscreen, RK3566 with NPU cores (HW Acceleration for AI models)

pic1.jpg pic9.jpg
#

I am currently waiting for my 2nd prototype to be delivered to me, I've worked on the 1st prototype for the past 6 months

#

I would like to hear some feedback and thoughts onto what features would you like to see or have on a board like it, and what price point would be comfortable for the entire package ( Board + Camera + Touchscreen ). It will work as a Linux Tablet kind of

turbid rivet
# languid atlas I would like to hear some feedback and thoughts onto what features would you lik...

I think the most common issue with most Linux SBCs outside of raspberry has been lack of documentation and stability of OS builds. If features are well documented and examples are easily recreated, I can see myself exploring it as an option.

Truth be told, however, I’m not as likely to consider something that comes with a camera and touchscreen, unless I have options for different screen sizes and camera resolutions. If I needed something that didn’t need those to be customized, I’d be more likely to repurpose an old android phone instead for my personal projects.

#

It is an impressive camera sensor for sure, but from a maker’s perspective I’d have to think of an application that would justify that type of cost for that combination of image quality and small-ish display.

fickle rose
#

is it normal for my pi to hiss at me? it gets louder when it's doing stuff

turbid rivet
fickle rose
#

it's coming from the pi itself

#

it has no audio out

#

i'm running the pi via the GPIO pins with the UBEC on the store

turbid rivet
#

Well, it could be a bad cap in your onboard PMIC circuit, but in that case there’s unfortunately very little I can recommend to finding or fixing it.

fickle rose
#

It’s not very loud

#

Just noticeable next to it in a quiet area

#

Just wondering if it’s something to worry about

languid atlas
turbid rivet
fickle rose
#

I got it like 2 weeks ago

#

Not much sample size

turbid rivet
#

Nothing wrong with spinning your own board, but you’re in a pretty niche position between a single board computer and a diy tablet, so unless you’re marketing it for a particular application and have some example for it ready, it might be a tough sell.

#

On that note, it might be worth considering a gpio header and/or some sort of battery power connector, if you’re looking to add features.

#

Even if they’re unpopulated, having them might help sell that targeted application.

languid atlas
#

That's a fair point

stark rivet
#

hey folks - after reading the docs, I was able to get the python libraries setup and it seems to be detecting the TMP36 sensor, however all I can get from the values is a True (disconnected) and False (connected); any tips on what I may be missing here?

logic:

import board
import digitalio

ap = digitalio.DigitalInOut(board.D5)
print(ap.value)```
image.png
turbid rivet
woeful wigeon
#

Pyarmor is not working on raspberry pi

#

Getting this error, Can someone please help?

woeful wigeon
#

solved it by installing pyarmor version 7

stark rivet
turbid rivet
# stark rivet turns out I bought a few analog sensors, so I should porbably get a analog-to-di...

https://learn.adafruit.com/reading-a-analog-in-and-controlling-audio-volume-with-the-raspberry-pi

https://learn.adafruit.com/adafruit-4-channel-adc-breakouts/python-circuitpython

Adafruit Learning System
Analog Inputs for Raspberry Pi Using the MCP3008

Convert analog inputs to digital and control audio volume

Adafruit Learning System
Adafruit 4-Channel ADC Breakouts

A guide to the ADS1115 and ADS1015 analog converters

velvet sluice
smoky bramble
#

i keep getting tthis error when trying to set up the FT232H for blinka:
ValueError: The device has no langid (permission issue, no string descriptors supported or device error)

#

im following the guide

#

this error ocurrs even if the board is unplugged

smoky bramble
#

I forgot to mention it. This happens when doing the pyftdi test

# 


from pyftdi.ftdi import Ftdi
Ftdi().open_from_url('ftdi:///?')
tiny fable
#

And you’ve installed the drivers?

smoky bramble
#

Yes

smoky bramble
#

Also did the udev rules thingy

velvet rampart
#

Are there any nice battery hats (compact size) for raspberry pi 5 yet?

broken shuttle
#

I actually don't know if I'd want to put a battery directly on top of a pi 5, considering how hot they can apparently get.

velvet rampart
#

The alternative is opi or rock pi and don't like those choices even if they have a bit more power, they also run quite hot

#

I might just wait for cm5 which is anticipated for first half of 2024

broken shuttle
velvet rampart
#

There's a dedicated power bridge on the pi5

#

But it pulls a lot of current isn't it like 3amps now, that means 10000mah cells will probably become the norm for handhelds and above

#

Pi4 a 5000mah gives some decent hours on a handheld. Maybe 4-7 hours

broken shuttle
velvet rampart
#

Yikes

#

Maybe I'll just make a lower powered cm 4 type thing . Not sure 🤷‍♂️🙏

smoky bramble
#

i uninstalled libusb-1.0 and when i tried again with the board unplugged i got the "no device connected" error. but then when i reinstalled usbutils (because somehow lsusb dissapeared) i get the error again

tiny fable
smoky bramble
#

On Linux, it usually comes from the same installation issue as the Access denied error: the current user is not granted the permissions to access the FTDI device, therefore pyusb cannot read the FTDI registers. Check out the Installation section.

#

hmmmmm

#

how do i do that

olive haven
smoky bramble
smoky bramble
#

so it seems that the rules are different on these guides

#

this is the current one that i have, from the adafruit guide

Captura_de_Pantalla_2023-11-24_a_las_20.58.37.png
#

and this is the one from the pyftdi installation page

# /etc/udev/rules.d/11-ftdi.rules

# FT232AM/FT232BM/FT232R
SUBSYSTEM=="usb", ATTR{idVendor}=="0403", ATTR{idProduct}=="6001", GROUP="plugdev", MODE="0664"
# FT2232C/FT2232D/FT2232H
SUBSYSTEM=="usb", ATTR{idVendor}=="0403", ATTR{idProduct}=="6010", GROUP="plugdev", MODE="0664"
# FT4232/FT4232H
SUBSYSTEM=="usb", ATTR{idVendor}=="0403", ATTR{idProduct}=="6011", GROUP="plugdev", MODE="0664"
# FT232H
SUBSYSTEM=="usb", ATTR{idVendor}=="0403", ATTR{idProduct}=="6014", GROUP="plugdev", MODE="0664"
# FT230X/FT231X/FT234X
SUBSYSTEM=="usb", ATTR{idVendor}=="0403", ATTR{idProduct}=="6015", GROUP="plugdev", MODE="0664"
# FT4232HA
SUBSYSTEM=="usb", ATTR{idVendor}=="0403", ATTR{idProduct}=="6048", GROUP="plugdev", MODE="0664"
#

the mode is different

smoky bramble
#

MODE="0664" seems to be the important bit

#

adafruit should definitely update or revise their guide

#

anyways, thank you rimwolf, this is like the third or fourth time you've helped me

#

and no errors it seems!

Captura_de_Pantalla_2023-11-24_a_las_21.28.26.png
olive haven
tiny fable
smoky bramble
humble marsh
fickle rose
#

Will having swap enabled noticeably degrade sd card life if the system is idling almost 24/7?

zenith crystal
#

not really because nothing's being swapped -- however, you typically won't need a swap partition though unless you've got really large memory requirements (assuming something on the order of a raspberry pi)

fickle rose
#

It’s a 3A+ that likes to freeze on me because low RAM

broken shuttle
fickle rose
#

It only freezes when i do stuff like updating

#

It idles most of the day except the scheduled update at the start of every week

#

It’s just running a pi-hole and octoprint

broken shuttle
#

Well, SD cards are slow enough that putting swap on one to begin with is probably still going to still result in freezes.

fickle rose
#

Giving it some space to breathe lets it actually work

broken shuttle
fickle rose
#

I know

#

Octoprint isn’t enough to make it freeze even with no swap

broken shuttle
#

Keep in mind that some octoprint plugins can consume a lot of memory.

fickle rose
#

About all i got running is octoeverywhere

broken shuttle
#

Maybe consider setting up swap-in-zram, if the RPi kernel has either of those modules enabled.

fickle rose
#

ZRAM?

#

Idk how well that would work on a system with only 512mb

broken shuttle
#

Well, it's probably better than running out of memory.

#

But yeah 512MB is pretty tight.

fickle rose
broken shuttle
fickle rose
#

neither are running

#

what would a good zram size be?

#

here's a pretty extreme example of video transcoding

image.png
#

it works great (not the transcode the vram)

#

might've spoke too soon... but i wasn't going to be doing video transcoding on a 3A+ anyway

broken shuttle
#

Maybe try 128MB and set your video RAM to the minimum value.

fickle rose
#

How do i change the vram?

#

Nvm found it

lapis vine
#

Hi I'm trying to setup adafruit blinka on orangepi zero 2w (Debian 11) but I've managed to install it with this guide. https://learn.adafruit.com/circuitpython-on-orangepi-linux/orange-pi-pc-setup
There were so many errors during the pip freeze command. yet I ignored them and started blinka.

It seems blinka is detecting zero2w as zero2. I think I can make this work by modifying some files. Anyone have any idea about what to do or where to look please help. Thanks in advance. I have attached the relevant boards I've mentioned too for your reference.

📎 orangepizero2.py 📎 pin.py Zero2W_Image.png Orange_Pi_Zero2.png
Adafruit Learning System
CircuitPython Libraries on Linux and Orange Pi

Make hardware and interface with sensors super easy using CircuitPython

oblique cairn
#

Are there any learn guides for getting blinka to talk directly to
HDMI 4 Pi: 5" Display (no Touch) w/Mini Driver - 800x480 HDMI PID: 1928
the RPi 5 boots up and displays the desktop, but I thought it might be nice to try out blinka on the pi and have it control the HDMI display. Any thoughts on where I should look to start out?

olive haven
blazing prism
#

Does anybody know if rpi_ws281x library works with pi 5? I'm getting this error "swig/python detected a memory leak of type 'ws2811_t *', no destructor found.
"

steady rose
novel flax
#

Can someone help me with a BTS7960 43A High Power Motor Driver with my raspberry pi? I have wired it correctly but i cant get the code to activate the motor. I replaced the driver and hooked the motor directly to 12v and it works.

this is the code

import tkinter as tk
import RPi.GPIO as GPIO

# Set the GPIO mode
GPIO.setmode(GPIO.BCM)

# Define GPIO pins
L_EN = 24  # Left Enable
R_EN = 23  # Right Enable
LPWM = 27  # Left PWM
RPWM = 17  # Right PWM

# Setup the GPIO pins
GPIO.setup(L_EN, GPIO.OUT)
GPIO.setup(R_EN, GPIO.OUT)
GPIO.setup(LPWM, GPIO.OUT)
GPIO.setup(RPWM, GPIO.OUT)

# Initialize PWM
left_pwm = GPIO.PWM(LPWM, 100)
right_pwm = GPIO.PWM(RPWM, 100)
left_pwm.start(0)
right_pwm.start(0)

def motor_forward():
    GPIO.output(L_EN, False)
    GPIO.output(R_EN, True)
    left_pwm.ChangeDutyCycle(0)
    right_pwm.ChangeDutyCycle(100)

def motor_reverse():
    GPIO.output(L_EN, True)
    GPIO.output(R_EN, False)
    left_pwm.ChangeDutyCycle(100)
    right_pwm.ChangeDutyCycle(0)

def motor_stop():
    GPIO.output(L_EN, False)
    GPIO.output(R_EN, False)
    left_pwm.ChangeDutyCycle(0)
    right_pwm.ChangeDutyCycle(0)

# Create the main window
root = tk.Tk()
root.title("Motor Control")

# Create buttons
forward_button = tk.Button(root, text="Forward", command=motor_forward)
reverse_button = tk.Button(root, text="Reverse", command=motor_reverse)
stop_button = tk.Button(root, text="Stop", command=motor_stop)

# Arrange buttons on the window
forward_button.pack(fill=tk.BOTH, expand=True)
reverse_button.pack(fill=tk.BOTH, expand=True)
stop_button.pack(fill=tk.BOTH, expand=True)

# Run the application
root.mainloop()```
opaque wagon
novel flax
fierce lotus
#

I'm trying to talk to an LTR390 using Python (adafruit_ltr390) connected to a USB I2C bus (i2c-tiny-usb) on a Pi4, what should I be using for the I2C bus? board.I2C is the one on GPIO, I tried "import smbus" but that errors "AttributeError: 'SMBus' object has no attribute 'try_lock'", similar with "import adafruit_blinka.microcontroller.generic_linux.i2c" as that doesn't have the try_lock either. Adding dummy try_lock and unlock (to adafruit_blinka.microcontroller.generic_linux.i2c) it talks OK to the LTR390 but I assume there must be a proper way without editing it?

steady rose
#

what is the USB I2C? is that some kind of USB to I2C bridge device connected to the Pi's USB port?

fierce lotus
steady rose
#

the base Blinka install only supports the "main" I2C buses (on GPIO)

#

for generic /dev/i2c* entries, use that extended bus library

fierce lotus
fickle rose
#

How would you invert the terminal display (no GUI) vertically?

simple oar
#

Hello, i'm quite new to raspberry and coding, but dove right in to getting a raspberry pi4 and a sgp_30 sensor to monitor indoor house air quilty. But i cant get it to work, this is the error code I have been getting.

i have made sure that i have it in a virtual env, and that adafruit_circuitpython-sgp30 is installed, and im sure i have wired it correct as well. Thanks for any help at all!!

0.png
#

Also dubble checked Blinka!

olive haven
#

That's an odd one. How did you install adafruit-circuitpython-sgp30? What do you get from these commands in the REPL?

import adafruit_sgp30
dir(adafruit_sgp30)
simple oar
#

i installed it system wide via Sudo isntall adafruit-circuitpython-sgp30 and in my virtualenv via pip3

#

this is what i got, did i do it right?

#

If this is of any use

image.png
#

am i maybe missing something

north mantle
#

the error in the bottom left says that, while importing the adafruit_sgp30 module, it was trying to load another module and that had an error

#

you may need to make sure you have the latest packages loaded that match the version of adafruit-circuitpython-sgp30 you have

simple oar
#

if it is not to much trubble how do i do that?

olive haven
# simple oar

What's the rest of the traceback from your test1.py? Your screenshot cut off the rest of the error traceback.

simple oar
#

sorry!

image.png
#

if this is what you meant with the packages, its the same.

image.png
olive haven
#

That's very odd: the call from from you original testcode.py is showing up in the traceback from test1??

#

What I would do is exit thonny, uninstall adafruit_circuitpython_busdevice, reinstall it, and try again.

simple oar
#

it did not help

olive haven
#

What does that tab for i2c_device.py show for line 14? Did you just open that tab after the reinstall, or was it left around from the last time you ran thonny?

simple oar
#

i closed it then open it, should i uninstall then reboot, then install and runt the code?

olive haven
#

(I'm running out of ideas -- something about your source files and installs is corrupted, but I don't see what would cause this. FYI I installed adafruit_circuitpython_sgp30 on my Mac and the equivalent of your test1.py gave the expected results.)

#

What does line 14 look like?

#

Should be "import types" or something liek that

#

But yeah, close that tab then reopen the source.

#

Try this: open a terminal window, run Python, in the REPL type import adafruit_sgp30, see if you get any different result. (Might be that Thonny is the actual problem??)

simple oar
#

line 14 is " sgp30 = adafruit_sgp30.Adafruit_SGP30(i2c)

olive haven
#

of i2c_device.py?

simple oar
#

yes

olive haven
#

Well that's wrong. The source got corrupted somehow

simple oar
#

Do you have any idea how to fix this?

olive haven
#

fwiw I've never used Thonny, but I have seen some complaints about it being flaky at times. Not sure what to suggest instead.

#

Did you try that suggestion of using the terminal?

simple oar
#

i tried it in the terminal and got the same result

#

should i maybe reset my pi to factory new?

olive haven
#

If you're willing. It's always worthwhile to get back to a known state.

#

the other thing that caught my eye is that you said you installed stuff both via sudo and in a venv.

simple oar
#

i feel like i have tried everything else so why not?

#

yes

olive haven
#

I would just do one or the other, preferablly the latter

simple oar
#

should i unstiall the system wide sgp30

olive haven
#

The immediate problem seems to be busdevice (i2c_device).

simple oar
#

do you know how to reset the pi, the only way i can think of is placing the sd card in a computer and wiping the card? Yes, i have dubble tripple check the wiring and blinka.

olive haven
#

Do you have an extra SD card? You could just start on a fresh one.

simple oar
#

yeah i guess i will do that, thanks a lot!! for all the help, i will hopefully report back with good news. Thanks again!

olive haven
#

yw. Good luck!

simple oar
#

🙂 thanks!

torn trench
steady rose
#

@simple oar where is that i2c_device.py file located?

broken shuttle
torn trench
#

That would be a fun project. My 3d printer is currently on the other side of the country but I'd be interested in trying it out when I get it back.

simple oar
steady rose
#

how did you originally install it?

simple oar
#

I installed it via a bundle on github

steady rose
#

should have pip installed it with the venv active

simple oar
#

so in venv pip install adafruit_circuitpython_busdevice?

steady rose
#

yes

#

although that is typically installed as a dep

#

like with the SGP30 library

#

pip installing that should bring in busdevice

simple oar
#

i got the same results, should i reboot after installing?

steady rose
#

shouldnt need to

#

what is "same result"?

simple oar
steady rose
#

have you tried without thonny? just run python from command line with venv active?

#

thonnny is not using the venv

image.png
simple oar
steady rose
simple oar
#

okej sorry!

#

yeah that worked, no errors

steady rose
#

i think you need to do some configuration in thonny so that it uses that same venv

simple oar
#

aha thank you!!!

#

i will try it but thanks very much!!

steady rose
#

don't know exact steps (don't use thonny)

#

but hopefully something google-able

simple oar
#

is geany better?

steady rose
#

never used that either

#

i don't actually use any "IDE"

#

just text editors

simple oar
#

aha okey, thank you very much for the help!!

steady rose
#

nothing to do with thonny, geany, etc.

#

but might help provide background info

simple oar
#

yes thanks again!

steady rose
#

anything like thonnny will be doing something like that behind the scenes

#

but that "something" might require your interaction to configure it properly, etc.

waxen valve
#

the product page for https://www.adafruit.com/product/4484 is a bit lacking in details

i slapped dtoverlay=fbtft,st7789v onto my pi, and it returned back:

[   18.052689] fbtft: module is from the staging directory, the quality is unknown, you have been warned.
[   18.058051] fb_st7789v: module is from the staging directory, the quality is unknown, you have been warned.
[   18.058288] SPI driver fb_st7789v has no spi_device_id for sitronix,st7789v
[   18.058293] SPI driver fb_st7789v has no spi_device_id for fbtft,minipitft13
[   18.058338] fb_st7789v spi0.0: fbtft_property_value: buswidth = 8
[   18.058346] fb_st7789v spi0.0: fbtft_property_value: fps = 30
[   18.058681] fb_st7789v spi0.0: Missing info about 'dc' gpio. Aborting.
[   18.058688] fb_st7789v: probe of spi0.0 failed with error -22
# 
            !par->gpio.dc) {
                dev_err(par->info->device,
                        "Missing info about 'dc' gpio. Aborting.\n");
                return -EINVAL;
        }

and i find this within the linux driver

#

but now the question is, which gpio is dc on? the product page doesnt say

#

ah, its only in the schematic image, gpio 25!

#

aha, dtoverlay=fbtft,st7789v,dc_pin=25 and now 3 pixels have lit up!

#

[ 11.633731] graphics fb0: fb_st7789v frame buffer, 240x320, 150 KiB video memory, 16 KiB buffer memory, fps=31, spi0.0 at 32 MHz

#

resolution is off

#

yeah, linux doesnt support the square one

#

fbtest still came out beautifully!

foggy karma
#

Hello. Please, help me because I struggle so long! I wanted to try Ili9341 out and I used SPI1. CLK is connected to GPIO21, MOSI to GPIO20, MISO to GPIO19. I used GPIO7 as CS PIN and GPIO18 as DC PIN. Unfortunately, nothing shows! Everything is connected properly!

I wanted to use test code and I fitted params to my pins:

import time
import busio
import digitalio
from board import SCK, MOSI, MISO, D2, D3
import board
from adafruit_rgb_display import color565
import adafruit_rgb_display.ili9341 as ili9341


# Configuration for CS and DC pins:
CS_PIN = board.D7 # na pewno!
DC_PIN = board.D18 #

# Setup SPI bus using hardware SPI:
spi = busio.SPI(clock=board.D21, MOSI=board.D20, MISO=board.D19)
# to jest ok!


# Create the ILI9341 display:
display = ili9341.ILI9341(spi, cs=digitalio.DigitalInOut(CS_PIN),
                          dc=digitalio.DigitalInOut(DC_PIN))

# Main loop:
while True:
    # Clear the display
    display.fill(0)
    # Draw a red pixel in the center.
    display.pixel(120, 160, color565(255, 0, 0))
    # Pause 2 seconds.
    time.sleep(2)
    # Clear the screen blue.
    display.fill(color565(0, 0, 255))
    # Pause 2 seconds.
    time.sleep(2)

sudo python screen.py
olive haven
#

What SBC are you using? A Raspberry Pi?

foggy karma
#

Yes

#

I completely don't know what to do, I'm just an amateur

olive haven
#

The code looks ok, but I wonder about the pins that you're using. You import SCK, MOSI, MISO, but don't use them in the ILI9341 initializer. Those pin numbers don't correspond to the ones that the PI uses.

#

I think you should be using SCK, MOSI, MISO in the code, and GPIO11, 10, 9 to wire up to the display.

#

Blinka uses e.g. board.D18 as the name for GPIO18. You should be able to check for synonyms if you open Python in a terminal, and issue commands like:

import board
board.SCK == board.D11

The second line should return True.

steady rose
#

also, you generally want to use hardware SPI

#

what ili9341 display is being used?

foggy karma
foggy karma
foggy karma
simple oar
#

Hello, dose anyone have any tips on how to save and store data from a sgp30 sensor. Any programs i should use? Much appreciate any help!

rotund pivot
#

@simple oar how long do you want to store it? how much history? how do you want to access it later? you can use the SD card or you can send the data somewhere over the network

simple oar
#

Not for long, only 1 day or so and then later retrieve it. What i would like is for my code to start on startup and then print all the values.

#

Could it be done by just writing all the outputs to a txt file? or is there a smarter way?

steady rose
#

start by just writing to a text file

#

see how that works

#

needing anything "smarter" would depend on your use case

#

simply writing to a text file in python is super easy

simple oar
#

Okey, thanks for yesterday and today!!

olive haven
steady rose
#

^^ that's if you are running CircuitPython natively

#

for Blinka/RPi, can just write

# 
with open("sgp30.dat", "w") as file:
    for _ in range(NUMBER_OF_READINGS):
        file.write("{}, {}\n".format(sgp30.eCO2, sgp30.TVOC))
        time.sleep(DELAY_BETWEEN_READINGS)
olive haven
#

ooops, sorry, forgot the context

steady rose
#

no worries. it is an important detail with native CP for sure.

foggy karma
simple oar
#

Hello, back again, maybe this is to simple to come here I dont know, but why dosn't his work?

1.png
zenith crystal
simple oar
steady rose
#

you have an except without a try

#

looks like you are trying to capture <CTRL><C>?

zenith crystal
steady rose
#

and close the file?

simple oar
#

And yes that is what im trying to do

olive haven
#

You should use the with open(...) construct like @steady rose showed you earlier. This closes the file when the with-clause exits for any reason, including an exception.

#

With the try CODE except OOPS, the code where you think an exception might occur is bracked by the try and the except part.

simple oar
#

I'am not quite following sorry!

steady rose
#

"context manager" = the code block that uses with

#

it's a python thing that has some automagic features

#

note in my example i never call file.close()

olive haven
#

The main part of your code should something like:

with open("mytextfile.txt", "w") as file:
    try:
        while True:
            blah blah blah
    except KeyboardException:
        print("gbye")
steady rose
#

^^ that

#

and with that example, the try/except is only needed to allow printing the message

#

the file writing would work without it

#

the context manager would handle closing the file

simple oar
#

Okey will try it out thank you guys for the amazing help!!

steady rose
#

also - just fyi, the % style string formatting is an older style from the Python 2 era

#

it still works

#

but format and "f-strings" are the newer way

simple oar
#

Yes i got it to work now thanks alot for all the help!!

steady rose
# 
>>> foo = 23
>>> "%d" % foo
'23'
>>> "{:d}".format(foo)
'23'
>>> f"{foo}"
'23'
>>>
olive haven
foggy karma
agile depot
#

Is it normal for a Pi Zero 2 W running Pi OS to freeze when taking a still photo with a Camera Module 3 with Picamera2? I know it has limited RAM but the second it opens a preview or tries to do anything with a camera it just locks up.

fickle rose
#

Uhhhh my pi 3A+ has decided WiFi/bluetooth doesn’t exist anymore

#

I haven’t touched anything since it stopped working days ago

#

Please tell me i’m dumb and changed a setting to disable them

#

The only network device shown is the loopback device (it should have docker and tailscale too)

#

I’d try a new image but my only means of talking to my pi is serial and the images don’t have the serial shell enabled by default

#

Wait i just remembered, I HAVE A USB WIFI DONGLE

#

Nvm that isn’t working either so it doesn’t appear to be a hardware issue (yes i have the driver installed)

fickle rose
#

a new image fixed it :D

agile depot
north mantle
#

not sure where to ask this, but since it's me trying to find the best (ish?) SBC for exploring the Coral TPU...

#

what would be a good SBC for the M2 variant of the Coral TPU? I am curious if anyone has experience trying to get it running

simple timber
#

Probably a used SFF intel x86 PC.

placid whale
zenith crystal
#

the forum post asked for a photo of the connections to verify that part first, so maybe that would be a better place to start

placid whale
#

I answered to the question. I just don't think picture of wiring mess is helpful.

zenith crystal
#

that's the process

placid whale
#

I'm sorry, but I don't know what does that mean? English isn't my native language.

zenith crystal
#

they (adafruit support) need to first visually verify that the wiring is correct and there are no bad connections, as that is the primary cause for "things not working" -- and that's why they ask for the photos

placid whale
#

Ok, thanks. I'll post a picture

storm wagon
north mantle
storm wagon
#

Works like a charm, at least for my uses with Frigate and it should work for other uses since I still had to install the drivers the usual way.

north mantle
#

Frigate is one of a few use cases i'm thinking about

storm wagon
#

The small thinkcentre ones. Lemme find the model

north mantle
storm wagon
#

M710q. At least, get a 7th gen because 6th gen Intels do have hardware transcoding but it's not great. I got mine for like 70USD on ebay with everything I need.

north mantle
#

that's a great price point - thanks!

storm wagon
#

Well, except the power adapter I realized later but the internals are fine.

north mantle
#

I have quite a few older corporate Lenovo's in my friend space, so power bricks are not a problem

storm wagon
#

I'm not totally sure about this point but make sure the unit has wifi because apparently some don't which might mean the slot isn't present.

north mantle
#

yep

north mantle
#

@storm wagon thanks for that very useful info and tip - just ordered a M710Q Tiny Core i5-7500T 2.5 GHz 16GB RAM 256GB SSD WiFi from eBay

storm wagon
#

Nice. We have almost the same specs since mine's at 12GB RAM. XD Frigate-wise, even with three cameras it just idles at around 15% utilization with the TPU does the job real well.

north mantle
#

coolness

#

this will also be a good test bed for trying to get HomeAssistant voice working, these things are prevalent enough that I could have one or two on the shelf as backup

young mesa
#

I have a handful of sensors that support I2C. I was originally planning on hooking the sensors up to an Arduino Uno and sending the data to a pi zero via serial (would need to level shift, or something?). But later found out that the zero supports I2C.

Anyway, I have the sensors all hooked up to the pi, now I just need to figure out how to access the data. On the Arduino, there were a bunch of libraries to do the clever fetching of the data for me.

Example: I have the Adafruit DPS310 pressure sensor. How can I grab the data from it? Do I need to use something Circuit Python?

(Please ping me in a response)

ruby night
foggy karma
#

Is it possible to stream audio (wav file) in Python to Bluetooth speaker? I use only SSH

velvet rampart
#

I think you'd have to run a Bluetooth scan over SSH to find the Bluetooth speaker in range of your host device then you some audio pipe to send it. Not sure what packages you'll need for this though

north mantle
#

Is there a guide to using Blinka on macOS ?

zenith crystal
#

depends on what you mean by "using" -- there's no drivers for Blinka to talk to, so nothing will execute on the mac

north mantle
#

I'm getting a few of the usb breakouts for gpio and I2C - so those will be what I want to use

#

i'm also interested in testing my displayio code on my mac

zenith crystal
#

as i said, there's nothing for blinka to talk to, so none of the python code written for it will execute -- the usb breakouts use the HID interface (iirc)

north mantle
#

hmmm, I am going to probably be very confused for a few minutes :)

zenith crystal
#

take your time....

north mantle
#

my thinking was that I could use a Adafruit FT232H Breakout to get GPIO and SPI to be "visible"

#

and then with SPI available, I would be able to use displayio to drive a display

zenith crystal
#

oh, yeah, those guys -- yes, they use blinka -- i thought you might be trying to use it ala Raspberry pi

#

don't see why not, to be honest

north mantle
#

I'm curious how I would use blink ala Raspberry Pi - are you meaning to mock that board type or simulate it?

olive haven
zenith crystal
#

oh, it runs "natively" on a Pi -- e.g you run your python code and it talks directly to the GPIO drivers

north mantle
#

ah - your talking about loading blinka on a RPi and just using it - then board.py will see something and just work

olive haven
#

I've got libusb-1.0 installed, have traced through a fair amount of the library code, and don't see why it's not finding the lib.

north mantle
#

yea, if I was wanting to use CP on a RPi - I would use CP on RPi, not blinka

zenith crystal
#

you have to use blinka on the Pi

#

blinka is the CircuitPython library that allows you to talk to the GPIO drivers

north mantle
#

ah - the lack of direct experience on a Pi is showing

#

(my lack, to be clear)

zenith crystal
#

np -- blinka is not used on microcontrollers because that is "direct" hardware access type stuff, but because the Pi is a "real computer" with an OS and drivers, the CP code needs the intermediate blinka library

olive haven
#

The point of Blinka on a computer (Pi or otherwise) is that you can use the CP libraries, but write your application in full Python on a real OS.

north mantle
#

ok, so that was a simmering assumption in my understanding

#

let me ask this in a different way... can I test my circuitpython displayio code on a make and have it use the mac's display?

zenith crystal
#

no

#

that's the "there's no drivers for that" bit

north mantle
#

hrmm, I have a memory of seeing someone run some code on a desktop and it displayed in a window

zenith crystal
#

there may be an emulator/driver out there, but i'm not aware of one

north mantle
#

ok, so I would have to find or build a "board" to emulate some display and then map that to the window on my laptop

#

or, get the USB breakout board to drive an SPI display to work :)

#

totally understand that my "find or build..." statement has all the hallmarks of a very new to the process mindset :)

zenith crystal
north mantle
#

so what is the method folks test displayio code out when working on new projects?

#

foamyguy was who I was watching when I saw it

zenith crystal
#

well, there ya go -- to be honest, most people are working on microcontroller platforms and pretty much just run it on their targets

tidal magnet
#

I was probably using Blinka_DisplayIO_PyGameDisplay if you saw me use it on a PC.

north mantle
#

I get that - I am working on a number of small QTPy projects and i've been using the SPI hat thingy for a TFT display

tidal magnet
north mantle
#

@tidal magnet it was one of your recent streams, I think it was a linux box

tidal magnet
#

This utilizes Blinka_DisplayIO (which by itself is really meant for SBC's like rpi etc..) But instead of running on an SBC and using a physical SPI connected display this outputs to a PyGame window.

north mantle
#

that is indeed what I was thinking about

#

the reason I want to do this is kinda simple, the displays I have are all TINY and my old eyes do not enjoy viewing them :)

#

ok, I have something to go look at, thanks @tidal magnet and @zenith crystal

tidal magnet
#

Yep, you're welcome.

zenith crystal
#

i got some 128x32 OLED so i know whereof you speak

violet fox
#

used one of those to make an isopod tamagochi, nice

north mantle
#

ok, have pygame based displayio working on my mac - so that's a good amount of progress for an after dinner attempt

north mantle
#

is the right spot to talk about an error I'm getting trying to follow the learn guide for FT232H on macOS?
https://learn.adafruit.com/circuitpython-on-any-computer-with-ft232h
macOS, Python 3.9 in a virtualenv, adafruit-blinka pyftdi and libusb installed via homebrew
export BLINKA_FT232H=1 done and doing import board in a REPL generates an immediate error
ValueError: No backend available

#

current versions:

  • Python 3.9
  • Adafruit-Blinka [required: Any, installed: 8.28.0]
  • Adafruit-PlatformDetect [required: >=3.53.0, installed: 3.57.0]
  • pyftdi [required: >=0.40.0, installed: 0.55.0]
steady rose
#

probably good enough place. there's not really a any-pc-running-blinka channel

#

that looks like a pyusb issue

#

feel like that's been run into before. looking....

olive haven
#

The only weird thing I've seen so far is that it tries /opt/homebrew/lib as one of places to check for the library file, perhaps in lieu of trying the standard places (like /usr/local/lib)

north mantle
#

I ran the post-install check for ftdi

>>> Ftdi().open_from_url('ftdi:///?')
Available interfaces:
  ftdi://ftdi:232h:1/1   (￿￿￿￿￿￿)

Please specify the USB device```
steady rose
#

that looks as expected

#

the url is generic, which is why i think its saying specify USB

#

but can ignore that part of the output

#

it found the interface, which is what matters for that check

north mantle
#

yea, the first time I ran it I didn't have the board plugged in - so at least I know the cable is a good one ;)

steady rose
olive haven
#

Seemed to for me; I'm used to using homebrew & didn't notice anythin unusual.

north mantle
#

brew info libusb doesn't show any issues

steady rose
north mantle
#

I know libusb is installed as I just installed pyusb and can enumerate the usb devices

steady rose
#

it's more than just being installed. looks like python version matters as well.

#

unfortunately i don't have a mac to test any of this

north mantle
#

that issue seems to be about the M1 make and the libusb being built for x86

#

oh - that issue/thread is long - let me keep reading...

olive haven
#

Yeah, I'm plowing through it as well. (fwiw I'm on Monterey on an Intel MacBook Pro.)

north mantle
#

Sonoma 14.1.2 on an Intel MacBook Pro

olive haven
#

(Mine's from 2016, so Monterey is the end of the line for it)

north mantle
#

thankfully my day job needs me to have recent hardware

olive haven
#

My New Year's gift to myself will be an M3 Pro

north mantle
#

ok, so using a pipenv installed python 3.9, installing pyusb into that and running

print(usb.core.find())
#

I get results, unplug the device, no results, plug it in - results

#

so that tells me the version of python i'm using can see the libusb library (or something I guess)

#

most of that thread seem to be centered around the way python is built and how it searches for dylyd files - for monterey era pyusb it seems you can set an environment var to let pyusb know where to look export DYLD_LIBRARY_PATH=/opt/homebrew/lib or something similar

olive haven
#

So I just set the environment variable DYLD_LIBRARY_PATH=/usr/local/lib, ran a short script to print dir(board), and voila!:

/Users/randy/PycharmProjects/ftdi/.venv/bin/python /Users/randy/PycharmProjects/ftdi/test0.py 
['C0', 'C1', 'C2', 'C3', 'C4', 'C5', 'C6', 'C7', 'D4', 'D5', 'D6', 'D7', 'I2C', 'MISO', 'MOSI', 'SCK', 'SCL', 'SCLK', 'SDA', 'SPI', '__blinka__', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__repo__', '__spec__', '__version__', 'ap_board', 'board_id', 'detector', 'pin', 'sys']

Process finished with exit code 0
north mantle
#

let me try that

#

yes! that also solves my problem

#

so it's definitely something inside one of the blinka / cp helper bits

#

hugs to @steady rose for pointing out that pyusb thread

olive haven
#

Thanks @steady rose for the link to the pyusb issue; this fix was a variation of a suggestion that a few people made in it

north mantle
#

so I'm wondering if it's in adaruit_platformdetect/chip.py or in pyftdi/usbtools.py

steady rose
north mantle
#

yes please!

steady rose
#

seems like the issue is outside blinka and more a general python env setup thing

#

but that issue thread has the general info etc.

north mantle
#

I don't think it's a python thing tho

#

using the same version of python, and pyusb, it works

olive haven
#

Several people mentioned /opt/homebrew/lib, which doesn't even exist on my machine. I'm wondering if hombrew inserts that into the USB configuration somehow.

north mantle
#

using python, blinka and board - it doesn't

#

that path doesn't exist for me either

#

yea, confirmed - import usb.core print(usb.core.find()) returns values even with the DYLD env var not set

#

now there is some info in that thread that could explain the difference...

#

hmm, but reading that thread is making me agree with cater :(

steady rose
#

i came across that issue thread also, but wasn't sure if it applied

#

it that one useful also?

#

@olive haven how'd you figure out DYLD_LIBRARY_PATH=/usr/local/lib vs all the mentions of /opt/homebrew/lib

north mantle
#

I need to go cook, I think we need to see why the two python code paths are different - via pyusb and via platformdetect. Both use libusb but how they have libusb referenced could be the issue - calling into dylb's is all about the config of the caller and not the library

olive haven
#

I figured that DYLD_LIBRARY_PATH was telling the code where to look for libusb, so I put in a directory where I know it is on my machine.

north mantle
#

right - my hunch is that the cpython routine compiled against libusb is different in platformdetect vs pyusb

#

and giving it a helping hand by pointing to the dylb location instead of relying on ctypes.util.find_library to discover it

olive haven
# steady rose it that one useful also?

That one explained where /opt/homebrew/lib comes from -- that's what homebrew creates for arm64 Macs. (On mine, the libusb dylibs are unpacked into /usr/local/Cellar/libusb/1.0.26 and linked into /usr/local/lib.)

#

So I think the general advice might be: set DYLD_LIBRARY_PATH to /usr/local/lib on an Intel Mac, or /opt/homebrew/lib on a Silicon one.

olive haven
#

@steady rose Thanks for adding those links to the troubleshooting page! I think that section just could use a title indicating that it's information specifically for Mac users.

steady rose
#

ha! that's a glitch! the title is disappearing for some reason. i've sent a question about that internally. it'll get fixed eventually.

#

title will just be same as one above, but with mac os instead of windows

north mantle
#

now that I can see the board, time to go find out how to use it :)

north mantle
#

this is annoying, I'm trying to document what I did to install and test, and now it's not working

#

gotta love it when this happens

olive haven
#

Did you set both env vars BLINKA_FT232H and DYLD_LIBRARY_PATH?

#

Here's my disappointment: I have a Stemma QT chain of an SHT40 and Seesaw Rotary Encoder. When I do an I2C scan on an ESP32-S2 QT Py, it shows addresses of both devices. When I do the same thing on the FT232H, it only sees the encoder.

north mantle
#

i'm confirming what env vars are set now

north mantle
#

ahh - the FT232H board is being detected, but the MCP2221A is not

#

oh my goodness, did not even think to check if the MCP2221A needed and env var

#

🤦‍♂️

north mantle
#

I am still chuckling over my mistake, the part of the learn guide for the MCP that had that nugget was just off the screen and I was all full of assumptions :)

olive haven
#

yow! yeah, that's obvious once I saw it in print

#

That's an interesting alternative to the FT232H -- no SPI, fewer GPIO, but UART and I2C at the same time, along with A2D/D2A.

north mantle
#

that's why I got both - need to cover all of those options

ruby night
tulip barn
#

Hello and happy holidays! Can anyone please assist me in setting up my RTC (DS1307) that is connected to an i2c multiplexer (PCA9546)? I know its looking for 0x68. I'm trying to figure out how to get it to look for 0x70[0]. Any assistance or point me in the right direction would be greatly appreciated. This is on a Raspberry Pi

zenith crystal
#

are you using CircuitPython? the multiplexer code allows you to select which "channel" your RTC is attached to, so ```
i2c = board.I2C()
mux = adafruit_tca9548a.TCA9548A(i2c) # should be equivalent, as this is the one i have
rtc = dunno_which_lib.rtc(mux[0], 0x68)

tulip barn
#

I'm using hwlock in shell. from my understanding setting up the RTC is done via shell not python(or CircuitPython?

zenith crystal
#

ok, out of my league -- don't know about that, but i don't think you can easily do it from the shell via a multiplexer, as it requires specific byte "prefix" to select and deselect channels

steady rose
#

yah. doubt anything shell/kernel supports the muxer

#

why the muxer?

tulip barn
steady rose
#

are there unsolvable address conflicts with the 4 devices?

tulip barn
tulip barn
# steady rose are there unsolvable address conflicts with the 4 devices?

2 devices share the same address (0xb). i originally had a tiny2040 running them since it (rp2040) had more than once i2c bus, but it was getting too complicated to have it checking them and then writing to text or sending via serial to the raspberry pi. Plus the raspberry pi would hang when doing multiple serial commands as its also sending AT commands to the cellular modem

steady rose
#

how are you planning on using the other non-RTC devices? via python?

tulip barn
#

yes. all in python

steady rose
#

expcet the RTC, which you want the OS to handle? via hwclock?

tulip barn
steady rose
#

the main reason for hwclock is so the RTC is used for system time

tulip barn
#

i suppose i could have python send a system command to udpate the time using the address mux0...

#

yes, i'm using it to time stamp events. and it will be in and out of cellular service to maintin close enough time. also when theres lack of solar charging, i would like the correct time to be accurate when it comes back up

steady rose
#

gotcha. sounds like an "off grid" type application.

#

so can't just connect to internet and ntp for time

tulip barn
#

lol kinda yeah. i already orered my version 1 custom PCB and routed the traces for the RTC to be over the multiplexer lol, now i'm changing the software to make it work

steady rose
#

you could put the RTC on it's own separate i2c bus and then config hwclock to use that

#

and for everything else, use muxer, python as shown above, etc

#

do you have free GPIO pins?

tulip barn
#

yes, several

steady rose
#

try setting up software i2c on two of those and attach RTC to that

#

i think there's a way to config hwclock to say what bus the RTC is on

tulip barn
#

i had no idea there was software i2c available. reading now, will test it out and let you know how it went

steady rose
# 
dtoverlay=i2c-rtc-gpio,ds1307,i2c_gpio_sda=23,i2c_gpio_scl=24
#

^^^ something like that in config.txt

#

and change the two pins to be whatever GPIO you are using

tulip barn
steady rose
#

checkout the dto linked above

#

its like software i2c specific to rtc

#

i2c-gpio is general purpose

tulip barn
#

oh...let me try that overlay. i'd uch rather have the mux done over defaul bus and not software

steady rose
#

yep

tulip barn
#

that worked even better. so i first tried using dtoverlay=i2c-rtc,ds1307,addr=0x70[0] in my config.txt from looking at https://github.com/raspberrypi/firmware/blob/176c6b3844ad24988623535e40370004e474fe87/boot/overlays/README#L78 without success. Then I followed the directions pointed out at the link you provided with dtoverlay=i2c-rtc-gpio,ds1307,i2c_gpio_sda=16,i2c_gpio_scl=18 and it worked fine. i still cannot see it with sudo i2cdetect -y 1 but sudo hwclock -r read it regardless. thank you very much @steady rose for your time and assistance with this. i really do greatly appreciate it

GitHub
firmware/boot/overlays/README at 176c6b3844ad24988623535e40370004e4...

This repository contains pre-compiled binaries of the current Raspberry Pi kernel and modules, userspace libraries, and bootloader/GPU firmware. - raspberrypi/firmware

steady rose
#

cool. glad that worked. i didn't know about that dto either.

#

could try and ls /dev/i2c* to see what buses are there

#

but the RTC one might not even be exposed

#

not sure

tulip barn
#

yeah it shows 1 and 2, and without me telling the gpio bus to be 3, it defaulted to 11

agile depot
#

I'm trying to use the Picamera2 library to record a video as an mp4 with audio with the FfmpegOutput output type, but for some reason I keep getting spammed with warnings like this that keep preventing me from recording a full video:

[mp4 @ 0x559bb64ad0] Non-monotonous DTS in output stream 0:0; previous: 144003, current: 125053; changing to 144004. This may result in incorrect timestamps in the output file.

I tried lowering the resolution and framerate to 720p 24fps but I still get the same thing, here's my code:

import time

from picamera2 import Picamera2
from picamera2.encoders import H264Encoder
from picamera2.outputs import FfmpegOutput

picam2 = Picamera2()
video_config = picam2.create_video_configuration(main={"size": (1280, 720)}, lores={"size": (640, 480)}, display="lores")
picam2.configure(video_config)

encoder = H264Encoder(10000000)
output = FfmpegOutput('/home/guiguig/Picamera2_Photos/test.mp4', audio=True)

picam2.start_recording(encoder, output)
time.sleep(10)
picam2.stop_recording()
agile depot
#

even

picam2.start_and_record_video("/home/guiguig/test.mp4", duration=5, audio=True)

gives the same result

north mantle
agile depot
#

But would that apply to the video framerate or microphone sample rate?

#

If it's the microphone how would I know what sample rate to record with?

north mantle
#

my thought is that if the audio is being processed by ffmpeg as an input then it's going to try and match up whatever is a fps in audio land - i've never worked with ffmpeg when trying to merge a video stream with an audio stream

muted ether
agile depot
muted ether
# agile depot No but I tried the audio and video example thats alongside those ones and got th...

I've been working on a way to stream or record video for a golf hitting bay. You can try running this file. You use it by going to your pi's IP address, port 8000, then you can go to the record endpoint to start recording. So http://10.0.0.44:8000 and http://10.0.0.44:8000/record (records 15 or 10 seconds of video and stores it in the same folder the as the running program). No audio though

📎 stream_and_record.py
#

I think you can remvoe the references to cv2 and numpy

agile depot
#

I managed to record video just fine, it only throws a fit when I set audio to True

#

I managed to run a subprocess thread that records audio and then concats it with the video in ffmpeg but the video ends up choppy

muted ether
#

What kind of mic do you have attached to your sbc?

agile depot
muted ether
#

You may be able to use cv2 to record video and audio. If you are using a pi camera, I've used GSreamer to pass that to cv2 by doing this: vid = cv2.VideoCapture('libcamerasrc ! videoconvert ! appsink', cv2.CAP_GSTREAMER)

muted ether
agile depot
muted ether
agile depot
#

It's a Pi Zero 2 W and I can't record any video and audio without it stopping

muted ether
#

ok, i was trying it on a pi 5 and cm4/piunora. zero 2 w might just be too underpowered or not have enough ram.

agile depot
#

It might be an issue with the microphone i have recording at a low sample rate by default, I'll try it with a better mic next chance I get.

muted ether
#

sure. other things you can try are 64 bit vs 32 bit os and the os with or without a desktop

agile depot
#

That's a good idea, I might just reinstall the OS

agile depot
#

Ok so now it records just fine but it never stops

muted ether
agile depot
#

64 bit, no desktop

#

And I have to force it to stop with Ctrl+C

#

The video also freezes after some seconds

dusk flower
#

uh... are there any Pi5+SSD rack solution like the one for Pi4 from UCTronics yet?

dusk flower
tall stream
#

Hi i'm trying to set up a adafruit voice bonnet and is trying to do the “Microphone Test” part on the setup guide on the datasheet (https://learn.adafruit.com/adafruit-voice-bonnet/audio-setup ) however when i try to run the command

“sudo arecord -f cd -Dhw:3 | aplay -Dhw:3”

I get the following error message:

Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
arecord: set_params:1416: Unable to install hw params:
ACCESS: RW_INTERLEAVED
FORMAT: S16_LE
SUBFORMAT: STD
SAMPLE_BITS: 16
FRAME_BITS: 32
CHANNELS: 2
RATE: 44100
PERIOD_TIME: (125011 125012)
PERIOD_SIZE: 5513
PERIOD_BYTES: 22052
PERIODS: 4
BUFFER_TIME: (500045 500046)
BUFFER_SIZE: 22052
BUFFER_BYTES: 88208
TICK_TIME: 0
aplay: read_header:2912: read error

Does anyone know how to fix this?

Adafruit Learning System
Adafruit Voice Bonnet

Give your Raspberry Pi two microphones and speakers!

muted ether
tall stream
tall stream
tall stream
#

Hi im trying to use google assist on a raspberry pi with adafruit voice bonnet and is following this guide https://learn.adafruit.com/using-google-assistant-on-the-braincraft-hat?view=all#device-setup
however when i run this commands to install the SDK i run into a problem:

sudo apt install -y portaudio19-dev libffi-dev libssl-dev
pip3 install --upgrade google-assistant-library
git clone https://github.com/adafruit/assistant-sdk-python.git
cd assistant-sdk-python/google-assistant-sdk/
pip install .
cd

The problem is when i try to download the different modules, as the google-api-core 2.15.0 requires google-auth<3.0.dev0, >=2.14.1 however the google assistant-sdk-0.6.0 requires google-auth<2. Is there a way to fix this or is there a way to instal a older version of google-api-core?

GitHub
GitHub - adafruit/assistant-sdk-python: Samples and bindings for th...

Samples and bindings for the Google Assistant API. Contribute to adafruit/assistant-sdk-python development by creating an account on GitHub.

Adafruit Learning System
Using Google Assistant on the BrainCraft HAT or Voice Bonnet

This project makes use of the BrainCraft HAT to easily get Google Assistant up and running

topaz pasture
#

Raspberry Pi 5 - WS2811

forest ember
#

i have a rc car controlled by an rpi4 thru python and its gpio pins. I want to use an old ps1 controller to control the car - ive got as far as wiring up the controller to (i think) the right pins on the pi and the little light comes on when i press analog on the controller so its getting power fine

I have very little clue about the drive/software for it tho. I have installed blinka on the pi since most of the example code i saw online used circuit python stuff like digitalio. Im using this https://github.com/todbot/CircuitPython_PS2Controller and the example code it provides and have i think correctly setup the pins for it basd on what i can tell from comparing the pinout of rpi4 and the controller but i cant say for sure

My code (basically just the example code) is this:

import board
from ps2controller import PS2Controller
ps2 = PS2Controller(dat=board.D22, cmd=board.D8, att=board.D10, clk=board.D12)
print("Press stuff")
while True:
    events = ps2.update()
    if events:
        print("events", events)
        print("L stick:", ps2.analog_left(), "R stick:", ps2.analog_right())

and it just outputs could no connect and nothing happens when i press button

not rlly sure if this is the best place for this but its worth trying

image.png
GitHub
GitHub - todbot/CircuitPython_PS2Controller: CircuitPython library ...

CircuitPython library to read Sony PS2 and PS1 ("PSX") game controllers - GitHub - todbot/CircuitPython_PS2Controller: CircuitPython library to read Sony PS2 and PS1 ("PS...

tidal magnet
# forest ember i have a rc car controlled by an rpi4 thru python and its gpio pins. I want to u...

I don't have any specific experience with PS controllers or pi4, so the help I can offer is limited. Can you share photos or a diagram or something that shows the exact wiring you're using from the pins in the controller to where they go on your pi? It looks like internally this library uses digitalio, a sort of "sanity test" you could try is removing the controlling and hooking up a few LEDs and a momentary switch to those pins and make sure that very basic digitalio code behaves as expected with the pins you're using.

forest ember
forest ember
tidal magnet
forest ember
#

i assumed it was the pin number

tidal magnet
#

So that makes me think that board.D# in blinka code should equal "GPIO #" labels on your diagram.

forest ember
#

ok ill try it uses the GPIO number instead

#

it looks like it might be working

#

thx

tidal magnet
#

Nice!, you're welcome.

novel flax
#

what is the best way to get a python script to automatically start when the pi boots to the desktop?

I tried the the crontab -e command method and a few others that didn't work
@reboot sleep 20 && python3 /home/frank/Desktop/Silicone_pump-V1.py >> /home/frank/Desktop/my_sc>

north mantle
#

you should be able to create a .desktop file that will run, but I don't recall if it only loads when you are logged in

#

another place to look is the Autostart preference

zenith crystal
#

if you're talking about something like the Pi 3 or "better", you can use systemd to create "user services" and you can have them trigger at various times and with certain pre-requisites -- this is how the newer sound subsystems work, as well as the (more correct) sandboxed docker containers

north mantle
#

ah - I was trying to remember what the newer linux(s) use

ruby night
zenith crystal
#

via slashdot -- "In 1978, the Cray 1 supercomputer cost $7 Million, weighed 10,500 pounds and had a 115 kilowatt power supply. It was, by far, the fastest computer in the world. The Raspberry Pi costs around $70 (CPU board, case, power supply, SD card), weighs a few ounces, uses a 5 watt power supply and is more than 4.5 times faster than the Cray 1."

north mantle
#

nice rabbit hole I fell into just now, went looking for pictures of the "portable" mainframes we used to work with in the Marines - once semi trailer was the mainframe and the other the generator and AC
couldn't find any pictures sadly

crisp dock
#

Reminds me of the GPS I used in the service. If I remember right, was like a tablet the size of my laptop. Awkward to hold. Looked like a huge calculator...

mossy obsidian
zenith crystal
mossy obsidian
#

ye I know, I was poking at that discrepancy hehe

storm sentinel
#

Hello, I'm trying to get the demo file to work for the EYESPI Beret but I'm using the Raspberry Pi 5. I think there is an issue with CE0 and the Pi 5. I created a virtual environment, I think I got all the circuitpython dependencies, and I get this error. I'm not sure what else could be using the CE0 pin....wondering if there are some issues with the new Pi or Python updates or something that I'm missing. Any ideas would be much appreciated.

Traceback (most recent call last):
File "/home/pi/project/screen_demo.py", line 50, in <module>
cs_pin = digitalio.DigitalInOut(board.CE0)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/pi/project/env/lib/python3.11/site-packages/digitalio.py", line 183, in init
self.direction = Direction.INPUT
^^^^^^^^^^^^^^
File "/home/pi/project/env/lib/python3.11/site-packages/digitalio.py", line 213, in direction
self._pin.init(mode=Pin.IN)
File "/home/pi/project/env/lib/python3.11/site-packages/adafruit_blinka/microcontroller/generic_linux/libgpiod/libgpiod_pin_1_x.py", line 92, in init
self._line.request(
OSError: [Errno 16] Device or resource busy

agile depot
#

This could be a question with a rather obvious answer, but does anyone know if a Raspberry Pi Zero 2 W has enough horsepower to run some basic low resolution image recognition stuff? I'm asking because I have a Pi Zero 2 W powered motion activated bird feeder camera that senses motion and takes a couple photos, but it often takes a photo too late and I'm left with photos of just the feeder.

#

Though I don't know if there's a big enough difference between "bird" and "no bird" photos. They can be rather tiny!

RPI_2023-12-31_10-14-09.jpg
rancid kindle
agile depot
rancid kindle
# agile depot Thank you! It doesn't have any image recognition/machine learning at the moment,...

Got it. If it can't respond to the PIR sensor fast enough to grab a snapshot reliably, I'd be surprised if running image recognition software on it would be any better. Maybe it would be possible to improve the latency of the PIR sensor? Not sure how it's working currently but if currently the PIR sensor triggers a frame capture, maybe just continuously capturing frames and keeping ones when the PIR sensor was active would work better? I'm making a lot of assumptions there...

agile depot
#

Well the problem isn't the latency, in fact I intentionally added a 1-2 second delay between sensing motion and taking a photo just so the bird has time to land and not be a blurry mess. But sometimes the motion sensor will trigger when a bird takes off and the feeder swings around for around ten seconds.

crisp dock
#

Can you place 2 sensors and have it take photos only when sensor b triggers after sensor a did?

agile depot
#

I added a 10 second cool down between photo opportunities too, but if I decrease it more it'll take more empty photos and if I increase it more it'll miss out on taking a photo of another bird.

crisp dock
#

(and not b then a, which would be leaving)

agile depot
#

Unless you mean having different sensitivities on either one.

crisp dock
#

one would be further out, or aimed slightly away, or sensitivity...

#

Without knowing what the landscape looks like, not sure what the best option is.

#

You could also put an accelerometer on the feeder. And take pictures after motion and then movement

#

And even time it for when it settles

rancid kindle
#

There are other sensors that might work better for you than PIR, too. The VL503L0X time of flight (no pun intended) sensor will tell you when something is within a certain distance, and shouldn't trigger just because a bird is leaving.

Adafruit VL53L0X Time of Flight Distance Sensor - ~30 to 1000mm

The VL53L0X is a Time of Flight distance sensor like no other you've used! The sensor contains a very tiny invisible laser source, and a matching sensor. The VL53L0X can detect ...

crisp dock
#

That could work well with the PIR, as a something is happening start looking at the feeder...

rancid kindle
#

Yeah, combining different sensors like that often can get you a more reliable trigger

muted ether
agile depot
stable merlin
#

I get this error when trying to run a Script that my servos move with pca9685

pi@ROS:~/Desktop $ python pl.py
Traceback (most recent call last):
  File "/home/pi/Desktop/pl.py", line 5, in <module>
    kit = ServoKit(channels=16)
          ^^^^^^^^^^^^^^^^^^^^^
  File "/home/pi/.local/lib/python3.11/site-packages/adafruit_servokit.py", line 92, in __init__
    self._pca.frequency = frequency
    ^^^^^^^^^^^^^^^^^^^
  File "/home/pi/.local/lib/python3.11/site-packages/adafruit_pca9685.py", line 176, in frequency
    old_mode = self.mode1_reg  # Mode 1
               ^^^^^^^^^^^^^^
  File "/home/pi/.local/lib/python3.11/site-packages/adafruit_register/i2c_struct.py", line 81, in __get__
    i2c.write_then_readinto(buf, buf, out_end=1, in_start=1)
  File "/home/pi/.local/lib/python3.11/site-packages/adafruit_bus_device/i2c_device.py", line 140, in write_then_readinto
    self.i2c.writeto_then_readfrom(
  File "/home/pi/.local/lib/python3.11/site-packages/busio.py", line 224, in writeto_then_readfrom
    return self._i2c.writeto_then_readfrom(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/pi/.local/lib/python3.11/site-packages/adafruit_blinka/microcontroller/generic_linux/i2c.py", line 98, in writeto_then_readfrom
    readin = self._i2c_bus.read_i2c_block_data(
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/pi/.local/lib/python3.11/site-packages/Adafruit_PureIO/smbus.py", line 264, in read_i2c_block_data
    ioctl(self._device.fileno(), I2C_RDWR, request)
BlockingIOError: [Errno 11] Resource temporarily unavailable

I get this error

stable merlin
#

what can i do against that

storm sentinel
zenith crystal
stable merlin
#

bookworm

#

pi5

zenith crystal
#

you need to re-do your environment and use a venv

#

.local/site-packages do not work on bookworm with blinka

stable merlin
#

How do i re-do my enviroment?

modern matrix
#

is there a pure JS module for controlling raspi GPIO from NodeJS in Raspberry Pi OS? that is, nothing that requires a working C compiler to install. currently considering writing a JSON/websocket adapter for the pigpiod daemon that can be installed thru apt. for controlling simple buttons/LEDs.

zenith crystal
stable merlin
#

will try,thanks

zenith crystal
#

wait! -- there;s a typo above

#

rm -rf .local/lib/python3.11 - not what i typed -- sorry

storm sentinel
stable merlin
#

because that wouldnt work

image.png
#

(same error)

zenith crystal
#

yes, you need to run in the same virtual environment that you installed blinka (and all the packages) in

did you install the python-smbus package as root?

#

what i would suggest is literally starting from scratch -- and I would seriously suggest using a sub-directory instead of the home directory as that might be a contributing factor

stable merlin
stable merlin
zenith crystal
#

a sub-directory is one that is created from the /home/pi directory -- e.g. mkdir -p /home/pi/projects/first; cd /home/pi/projects/first; python -m venv env; source env/bin/activate

note I do not have a Pi 5, but I do have bookworm installed on both Pi 4 and Pi 3 without issues

agile depot
#

I'm trying to use Picamera2 to take a video and running start_and_record_video() gives me this exception:

  File "/home/guiguig/CameraProgram/force_capture.py", line 14, in <module>
    take_video(cam, dbx)
  File "/home/guiguig/CameraProgram/camera.py", line 90, in take_video
    cam.start_and_record_video(file_path, duration=video_length, audio=False)
  File "/usr/lib/python3/dist-packages/picamera2/picamera2.py", line 1758, in start_and_record_video
    self.start_encoder(encoder, output, quality)
  File "/usr/lib/python3/dist-packages/picamera2/picamera2.py", line 1537, in start_encoder
    _encoder.start()
  File "/usr/lib/python3/dist-packages/picamera2/encoders/encoder.py", line 234, in start
    self._start()
  File "/usr/lib/python3/dist-packages/picamera2/encoders/h264_encoder.py", line 69, in _start
    super()._start()
  File "/usr/lib/python3/dist-packages/picamera2/encoders/v4l2_encoder.py", line 137, in _start
    fcntl.ioctl(self.vd, VIDIOC_STREAMON, typev)```

Anyone know what the cause could be? I can post further code if necessary.
agile depot
stable merlin
# 
import time
from adafruit_servokit import ServoKit

time.sleep(1) 
kit = ServoKit(channels=16, address=0x40)


servo_channel = 12
kit.servo[servo_channel].set_pulse_width_range(500, 2800)

def move_servo(channel, angle):
    pulse_width = int((angle / 180) * (2500 - 500) + 500)
    kit.servo[channel].angle = angle

move_servo(servo_channel, 0)

time.sleep(1)

maybe it is something with the code?

#

I doubt it

image.png
zenith crystal
stable merlin
#

i tried two

#

i tested it now on my rpi zero and it works flawlessly

zenith crystal
#

😕

stable merlin
#

ive posted a thread on the rpi forums and hope that its not a hardware problem

stable merlin
#

how do i install raspberry pi bullseye on my rpi 5

zenith crystal
#

i don't think bullseye was ever built for it

stable merlin
fickle rose
#

what size is the mounting holes on a rpi 3A+?

broken shuttle
light grotto
#

Anyone have luck with access to GPIO using python without sudo ? I already tried this sudo usermod -a -G gpio pi .

final onyx
#

It's not throwing any errors at me but it doesn't seem like it should be doing that

final onyx
final onyx
#

Doing some more reading might be because adding to a group requires a logout so makes sense why setting the allowed all read wrote would solve that.

zenith crystal
#

if you've added your user to the gpio (and possibly the i2c and spi groups), yes, you do need to logout in order to re-establish your groups and permissions -- you should not set any of the gpio* devices to full "rw" for all

craggy bolt
#

Hey, I'm trying to set up a video looper on a Raspberry Pi 3 A+ and I'm having trouble getting it to work.

Has anyone had success recently with this method? https://videolooper.de/
I've installed it with the Raspberry Pi Imager but once I put the SD card in my Pi it doesn't seem to boot properly. Pi Finder also isn't able to connect to it for me to ssh in, which I've been able to do on other OSs without an issue.

I'd tried the method in this guide as well: https://learn.adafruit.com/raspberry-pi-video-looper/installation but hit a wall at the end where I get a message that says 'omxplayer' has no installation candidate. I found some forums posts saying that omxplayer was phased out, and a similar guide that said it would work correctly if I flashed the Buster OS (the guide in question https://core-electronics.com.au/guides/raspberry-pi-video-looper/) but I'm still not having any luck.

I'm not married to any particular method I just want to be able to play/loop videos from a flash drive, if there's another method that someone knows I'm open to that. I'm very new to this.

humble marsh
#

this is a general problem and I don't know of an updated solution for the latest os

craggy bolt
tall stream
#

Hi im trying to use a NeoPixel Ring - 16 x 5050 RGB LED with Integrated Drivers
on a raspberry pi. For that reason I'm following this guide (https://learn.adafruit.com/adafruit-neopixel-uberguide/python-circuitpython) to program it in python. For parts of the code to work I need to run the program with “sudo” privileges, however when I do this I get a “ModuleNotFoundError '' message. But when I don't run it with “sudo” i dont get that message but I cant use NeoPixel.
note: i run the code in a virtual environment.

Does anyone know what the problem is and how to fix it?

humble marsh
steady rose
tulip haven
tall stream
steady rose
meager girder
#

I can power a stemma qt py esp32-s2 from my rpi 4 right ?

#

3A in from dc supply supply, about 1.1A out max about 75mA idle as far as I know including my keyboard/2 mouses/rpi4/2 fans

meager girder
#

Is there an app on the pi that would let me monitor amps uses, or an hat that does this as standard on an rpi 4 ?

meager girder
#

ok 😦

sullen coral
#

I have installed the bare metal image of Circuit python from the official site on my RPi Zero board, https://circuitpython.org/board/raspberrypi_zero_w/

I installed the image from the above , link, aka. v8.2.9, using the Raspberry Imager software. I do have a bunch of files created when I plugged my SDCard on ZeroW and connected the USB to the board(in the non-power USB port)

Now I have a few question

  1. When I plug the USB to my windows pc I do not see the device appear as a drive, though in the device manager I can see an unknown device. Is that alright?
  2. If I need to execute a python code on the board how do I do it? I tried putting the following code in a file code.py in the root of the sd card.
import board
import digitalio
import time

led = digitalio.DigitalInOut(board.D21)
led.direction = digitalio.Direction.OUTPUT

while True:
    led.value = True  # Turn the LED on
    time.sleep(1)     # Wait for 1 second
    led.value = False # Turn the LED off
    time.sleep(1)     # Wait for 1 second

but nothing is happening. Not sure if its the program or something wrong I am doing in executing the bare metal image on it. This is the first time I am trying circuit py on raspberry pi zero w using the bare metal image. I have had it work fine when it run it on Raspberry Pi zero W on a linux OS.

CircuitPython - Raspberry Pi Zero W Download

NOTE: This build is alpha quality and is for experimental use. It is missing features and has known issues.Raspberry Pi Zero W Is the first small size (Wifi enabled) Raspberry Pi’s single-board computers. This is the predecessor of Raspberry Pi Zero 2 W with the same form factor.The board incorpo...

hard pike
sullen coral
rotund pivot
midnight flume
#

My NVME Base arrived today. Will start putting the Pi 5 together and designing a 3D printed enclosure.

#

Most of the commercial cases I've seen don't account for the NVME base. I have a feeling it might become the stock configuration for a lot of people so having a 3D printed enclosure that accounts for it should be helpful. I think there are a few designs that do account for it but the plans I have for the enclosure design are unconventional.

modern matrix
#

the pimoroni NVME base looks nice. I've got an m.2 PCIe USB-C controller I'd like to try with it; I never got it properly working with a Pi CM4 because my carrier board's m.2 slot wasn't big enough to hold a 2260-sized card.

tulip barn
#

I'm really happy with mine. installed fairly quickly, then i just sudo dd the micro sdcard to the nvme, set boot order to nvme and has been working flawless

willow lintel
#

@tulip barn is sudo dd also a good way to back up an nvme drive to SD card while the system is on? I have a Linux SBC with and an onboard flash drive that I’m terrified will get corrupted every time the power goes out but I don’t know how to backup a Linux system while it is on

tulip barn
zenith crystal
red yoke
#

hey, I have an oldish Raspberry Pi 2B+ I'm trying to add a fan control to, using a DHT for temperature measurement and a PWM fan
I got both DHT and PWM working individually (DHT read success rate about 60-90%), but I'm unable to read the DHT if I start using PWM
DHT on pin 17 and fan is on pin 13 (fan rn substituted with a led for testing)

here the simplest example I tried doing through python console:

import board
import adafruit_dht
import pwmio

dhtDevice = adafruit_dht.DHT11(board.D17)
dhtDevice.temperature
> 21
fan = pwmio.PWMOut(board.D13, frequency=5000, duty_cycle=0)
dhtDevice.temperature
> A full buffer was not returned. Try again.

its probably something obvious but I'm new to this and didn't have much luck on google so decided to try this out

#

not sure if this was the best channel but thought it's probably some quirk with raspberry pi I'm not familiar with

#

until now I've just used it as a small home server, first time using the GPIO

red yoke
#

hmm nvm the problem is probably somewhere else. I rebooted and rewired everything and now it works, although the success rate for the data read is still significantly lower when the PWM is enabled, from like 70%->20%
although, trying to run the whole logging script suddenly it doesn't manage to read it even once (allowed it to try it about 50 times)

steady rose
red yoke
#

that'd require me to order them, mostly trying to work with stuff I got long ago but I suppose

willow lintel
zenith crystal
willow lintel
# zenith crystal once you're booting from a USB drive, why would you want to use the SD? and I'm ...

I’m not starting from an SD card. In the case of corruption, my flash/usb/nvme drive is unbootable until I reflash it with the ground zero image I can get online. Instead of spending days reinstalling and reconfiguring everything I have setup, I want to clone my backup image from the SD card back onto the flash (but presumably I can’t do that while running from flash) so I’d have to switch the boot order to the SD backup before transferring the image, yes?

zenith crystal
willow lintel
mystic light
#

I'm trying a blinka install on a fresh Rasp4, Raspbian OS 64bit and running into a problem with the command:
pip3 install --upgrade adafruit-python-shell
error: externally-managed-environment

#

I thought I was following the guide correctly but can't seem to figure this part out

#

ah, nevermind, I see the Bookworm updated instructions, I'll give that a go

steady rose
#

yep, sounds like the bookworm related changes

mystic light
#

no discotools for raspberry pi?

vocal lava
#

what happens when you try and pip install it?

lean kiln
#

5% off pi's at thepihut.com (UK) and 10% off kits. Ends sunday. Both sizes in stock. Looks like pishop.us has good stock (no discount though) if across the pond.

mystic light
#

nevermind, for some reason I was using discotools instead of discotool. installs fine

modern matrix
#

I know there's an official Raspberry Pi 5 USB-C power adapter with a wacky 5V/5A output, but is anyone making a USB-PD cable that sources 25W+ using a normal, common USB-PD power profile and exposes it as 5V/5A over USB-C/USB-PD for the Pi 5?

#

I've got a couple of those cool Adafruit USB-PD trigger boards that I could connect to buck converters, but it seems like this should be an off-the-shelf product?

broken shuttle
modern matrix
#

my understanding is that it's allowed in the spec; a source can advertise the 5V/5A profile, but a device can't require it. which is probably why the Pi 5 also works with a 3A source by reducing max output on its USB host ports. so a PD-to-PD adapter that translates a common profile (maybe 12V/3A) to a less common one (5V/5A) seems possible within spec.

waxen citrus
#

Hello, did anyone manage to get the ws2812b on a raspberry pi 5 running? The neopixel libraries are due to hardwarechanges not working. Is someone working on this ?

zenith crystal
#

probably

broken shuttle
silver flume
#

I am copying what I said in #help-with-circuitpython

I am wondering is there a full documentation how can I GitHub Action/CI my groupwork of hardware and software implementation of the IoT device? I have tried sleuthing the Adafruits' own Github repos of how they have done our tests, but I use the Blinka' with Micropython flavour of firmware? I have tried reading the Micropython Testing chapter of documentation but that makes me wonder and force me to somehow figure out how can I clone, copy it and run in everytime.

humble marsh
modern matrix
#

in a quick test, it looks like the Raspberry Pi 5's RP1-based USB controller doesn't have the bug in the Pi 4's VL805 controller where it rejects connecting more than one or two USB audio devices at a time with a "not enough bandwidth" error. nice! I was hoping for this. something reviewers don't test for.

#

I was able to connect 5 USB audio devices with no errors. it was a quick test; I'll need to follow up by trying to drive them all simultaneously. I've got high hopes, tho.

#

wonder what the 5's max underclock/undervolt is...

snow timber
#

Ideas on how to fix Ubuntu 23.10 on pi 5 dropping usb nic while under load (dmesg shows xhci-hcd stopped responding) reboot will get the nic back, but not very useful nic if it drops out.