#help-with-linux-sbcs

1 messages · Page 1 of 1 (latest)

viral oxide
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Anyone know if there is a way to put multiple leds on one pin of the pico, i need to use more pins than the pico has

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To clarrify, the leds dont all need to be independantly controlled, will it work if i just connect multiple led and resistor pairs

umbral sable
viral oxide
umbral sable
wanton kayak
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Hello, I have custom PCB with RP2040, the USB works in bootloader mode, flash of firmware works good (when I dump it is OK), but after testing the hello world USB, there is no USB activity. Any ideas? Eventually, can bootloader USB mode work without external oscillator?

fickle rose
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I don’t think the rp2040 has a internal oscillator

twin helm
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according to the datasheet, it does, but i'm not sure it's stable enough for clocking USB (maybe low-speed only?)

hard pike
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as far as I am aware, there is no way to enable USB with the internal osc

twin helm
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ah, ok. ATmega32U4 has an internal oscillator that can be used for low-speed USB only

hard pike
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It's a point of ire among people who are used to using the SAMD21 and getting USB with minimal components

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SAMD21 from what I understand use USB timing to calibrate the internal osc

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no idea if it's the same on the 32u4

twin helm
hard pike
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basically lol

twin helm
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the 32u4 doesn't automatically calibrate its internal oscillator from the USB timing, but you could probably write firmware that did

wanton kayak
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BTW, the issue was bootloader second stage had issues to init SPI Flash

# 
#define PICO_BOOT_STAGE2_CHOOSE_GENERIC_03H 1

#ifndef PICO_FLASH_SPI_CLKDIV
#define PICO_FLASH_SPI_CLKDIV 2
#endif
visual crescent
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Could I use this for a pi? it's meant for an arduino, and I don't care for the touch, but it's the only affordable 3.0" lcd I could find

unknown.png
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Pinout

unknown.png
fickle rose
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While you “could” you would have to write a library to use it with the raspberry pi so I wouldn’t recommend it

visual crescent
mint field
hollow jewel
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how i create a ap local host with a pico w?

visual crescent
# mint field There is a C library here https://github.com/nopnop2002/Raspberry-ili9325 which ...

No worries, found the perfect library for my purposes, I'll post it here if anyone needs it: https://github.com/juj/fbcp-ili9341
It's meant for the ili9341 tho, but it does have other drivers supported too

GitHub
GitHub - juj/fbcp-ili9341: A blazing fast display driver for SPI-ba...

A blazing fast display driver for SPI-based LCD displays for Raspberry Pi A, B, 2, 3, 4 and Zero - GitHub - juj/fbcp-ili9341: A blazing fast display driver for SPI-based LCD displays for Raspberry ...

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Can I wire up that sd card breakout board to these pins to relocate the main sd card reader?

unknown.png
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There's also a simpler pcb with less resistors, not sure why and how they differ

unknown.png
fickle rose
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you need a breakout that shows the SDIO pins

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i can't think of a reason it won't work if you use the SDIO breakout

hollow jewel
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hi

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how mpremote work with pi pico

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w

spare girder
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1M. I found an application for my PC called MOBAXTERM something like that which allows me to connect to my PI over wifi instead of cable. am loving it!! but i need to shut down my HDMI and make something to let me reconnect to hdmi incase if wifi crashes. or does the pi detects that hdmi cable is unplugged and boosts his performance?

latent quail
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This is just a comment, rather than a question, but someone might want to update the library documentation or the implementation guide for the LIS3MDL breakout - Python/Circuitpython. there is a note on the Arduino guide about a known issue that is resolved by grounding the A0 pin (or pulling high, I guess). It appears this also applies to Python/CircuitPython as it appears to be a hardware issue. Some functions communicate correctly with the sensor, while some do not. The sensor also appears to change I2c addresses from the perspective of the OS (outside of python). This was resolved for me by either grounding or pulling the A0 pin high (and thus fixing the address to either 0x1c or 0x1e)

humble marsh
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I will ask about that. It looks like there's a pulldown on the pin already, but there may be some further issue

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this is the AD1 jumper on the back, right? Did you short the jumper, or connect one end directly to GND?

radiant helm
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Hey guys! I'm looking to buy a Pico W and get it working with circuit python for Arducam functionality, does circuit python have support for the Pico W?

sacred oar
radiant helm
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shoot, thank you for the quick response though!

steady rose
latent quail
# humble marsh this is the AD1 jumper on the back, right? Did you short the jumper, or connect ...

I have two, one with the jumper soldered and one without. Neither works appropriately using only the jumper. They appear as the "correct" address initially upon bootup (tried with 3 SBCs of different manufacturers" and then later switch to a different address. simple functions like reading out the data rate work, but I could not get mag readings on either. Setting the D0 external pin either to ground or pulled high to the logic voltage worked to set a stable I2C address on both that would work for all library functions

humble marsh
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Datasheet says: When I2C or 3-wire SPI is used, the SDO/SA1 in must be connected to Vdd_IO or GND. I will note this in the guide in both sections and in the pinout section.

latent quail
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Awesome. Yeah, I saw the note in the Arduino/C++ guide and decided to try that to fix the address rather than relying on the jumper, and it solved the problem.

thick dagger
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Hi I am trying to make a game console with the pi 4 but In order to make it fit I need to desolder the USB ports on the pi. Is there a good way to do this?

umbral sable
visual crescent
fickle rose
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It’s in the image you sent

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It’s the cluster of pins to the right in the photo

visual crescent
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I just realised the board I found was spi. From what I can tell, there's only one sdio board in my country website

daring fable
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To anyone who has been considering a CrowPi L (Raspberry Pi laptop) and think you can just use the pins with regular devices like the Sensor HAT think again. After speaking back and forth to Elecrow, even after they created an adapter, they have finally decided to tell me that there are pins disabled.

"Allow me to explain, when designing CrowPi L, several pins are disabled： 4, 6, 17, 39. Because if these power pins are plugged in incorrectly, it'll be easy to burn Raspberry Pi."

This makes this device useless to me so I'll be returning mine.

available_pin.png
fickle rose
fickle rose
visual crescent
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I have a question tho

fickle rose
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?

fickle rose
visual crescent
# fickle rose what is it?

https://www.youtube.com/watch?v=uZBYOqfhCSo&t=370s

At about 0:24, he explains how he did it, he didn't seem to use a conventional card reader with an interface, instead he practically directly soldered a Micro SD card to SD card reader directly to the Pi's back things that I showed before

YouTube
wermy
Game Boy Zero Guide Part 5 - Cartridge Reader and Audio

Follow what I’m up to between videos on Instagram! https://www.instagram.com/sudomod_wermy/
Want to help support future projects? Buy me a coffee! https://buymeacoff.ee/NcFE38xiO
See what other sudomodders are up to in the forums! https://sudomod.com/forum/

Written guide:
http://sudomod.com/game-boy-zero-guide-part-5/
Enter to win the one I'...

▶ Play video
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Why did it work for him?

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What he is doing is what I am trying to do as well, however I was having trouble with the pins

fickle rose
visual crescent
# fickle rose wym

He is basically relocating the sd card reader to a game boy cartridge slot

fickle rose
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he isn't booting the pi from that sd card

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it's on the gpio and the pi can't boot from an sd card on gpio

visual crescent
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Oh, are you aware of this project?

fickle rose
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yes

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i have made one of his mintypis

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but i broke it

visual crescent
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Oof

fickle rose
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pulled the L button pad right off

visual crescent
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How does his work, since those are adapters, no?

fickle rose
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wait i was wrong

visual crescent
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About?

fickle rose
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he is booting the sd card from the cartridge using the pins on the bottom

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do you have a microsd to sd adapter?

visual crescent
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I might, I have to look for it or buy one

fickle rose
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you won't need the breakout then

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just solder to the pins on the adapter like wermy did

visual crescent
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Oki!

fading idol
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I have a CRICKIT HAT (product 3957) and have it on a Raspberry Pi 4. If I try to use power from the CRICKIT, it will not boot. If I provide USB power to the Pi 4 and the CRICKIT, I can get it to boot. Is there something I can do to provide power to the Pi from the CRICKIT? Should I use a Pi 4 with the CRICKIT or is it better to stick with the Pi 3?

steady rose
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what power input are you using on the HAT?

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make sure it's the barrel connector

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the HAT should be able to back power the pi

fading idol
wanton kayak
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Hello, please, is anyone there who have experience with RP2040's PIO ?

hard pike
hybrid swan
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@humble marsh mentioning you as well since you created the library and might have some insights on this too. I am working on a project that uses a RPi Pico W and an LCD. The LCD I'm using (PFC8574) requires 5V. From everything I've read about the Pico you can basically use VBUS or VSYS pin for 5V when powered from USB. When displaying simple text on the LCD it's getting garbled. I send "This is a test" and on the LCD it shows "Thisa te". Sometimes running the same code results in strange characters randomly placed on the screen. I think it's due to voltage as I have 2 of these LCDs and they both do the same thing so I'm wondering if I need to add an external power supply to the project. Anyone else run across this? And here's the code: from lcd.lcd import LCD, LCD_BACKLIGHT, LCD_NOBACKLIGHT
from lcd.i2c_pcf8574_interface import I2CPCF8574Interface
from lcd.lcd import CursorMode
import busio
import board

Here we will build an interface for the supported display

i2c = busio.I2C(board.GP27, board.GP26)
lcd = LCD(I2CPCF8574Interface(i2c, 0x27), 4, 20)

lcd.clear()
lcd.set_cursor_mode(CursorMode.HIDE)
lcd.print("This is a test")

steady rose
fading idol
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I have it hooked to keyboard and monitor and I do not get anything other possibly a flash as it powers on. Also,no light on the Pi

steady rose
fading idol
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It is like that. I have buttons hooked to 4 of the IO pins and LED lights wired up to 4 of the PWM (technically wired, but no buttons or lights connected at the other end).

steady rose
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when you power both so the pi boots, does the crickit then work ok?

fading idol
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Yes, as long as I put power to the Pi first, I am able to plug in the CRICKIT and it operates just fine.

steady rose
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not sure what's up. would you mind posting this in the forums so we can work it there?

fading idol
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Absolutely! Thank you for your help

steady rose
visual crescent
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Anyone know if I could use a Nintendo DS Lite screen for a Raspberri Pi? I have no idea what kind of screen it is for now

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Nevermind, seems to be a 45 pin thing, probably proprietary like most Nintendo stuff

visual crescent
frozen shoal
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Hi, so new to all this but I'm looking at this guide https://learn.adafruit.com/reading-a-analog-in-and-controlling-audio-volume-with-the-raspberry-pi?view=all and in the guide it shows wiring up a potentiometer to one of the channels
So I'm wondering if I say wire up another potentiometer and put it on channel two, how would the raspberry pi differentiate between the two signals?
Also would the wiring and everything pretty much be the same for say a 16 channel one like this one? https://www.mouser.com/datasheet/2/256/MAX11120-MAX11128-217961.pdf
Lastly in the guide there's code and it says at the top import adafruit_mcp3xxx.mcp3008 as MCP I don't really know where to look but is there a library for the 16 channel max111xx chip?

Adafruit Learning System
Analog Inputs for Raspberry Pi Using the MCP3008

Convert analog inputs to digital and control audio volume

steady rose
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the pi doesn't differentiate. the MCP3008 does.

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the pi talks to the the MCP3008 over SPI

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so the pi would say like "give me the value on channel 0", etc.

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the basic wiring that's being done is what's called a "voltage divider" - can google that for tons of info. it's a generic thing, so, yep, could be used with other ADC's

frozen shoal
steady rose
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yep

frozen shoal
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I'm not able to find a library for the MAX11128 chip

steady rose
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yep. i'm not aware of one either. would need to search around.

frozen shoal
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Ah

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Do you know if there would be any issues with using two MCP3008s?

steady rose
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the MAX appears to be SPI based, so, in theory, could work

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do you need more channels?

frozen shoal
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I don't really know anything about this kind of stuff but I was looking at mouser and found that MAX chip, it'd be cheaper to use that then use two MCPs

frozen shoal
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Do you know of a chip that has a library for it that's cheap?

steady rose
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SPI allows for multiple devices

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SCLK/MOSI/MISO pins get shared

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and then each device needs its own CS pin

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so, yes, could use two MCP3008's

frozen shoal
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I see, but it'd still need a library so I can't use the MAX right?

steady rose
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correct. that'd be true in general. for any given device, need a library to support.

frozen shoal
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Am I correct at least that SCK means SCLK?

steady rose
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yep. same.

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that's the "clock" pin

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MOSI and MISO may have other names as well

frozen shoal
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Ahh

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So uh, what are MOSI and MISO?

steady rose
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they're DIN and DOUT in the MAX datasheet for example

frozen shoal
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The guide says MISO is DOUT and MOSI is DIN

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I mean like uh where do I connect those to the pi pico?

frozen shoal
steady rose
frozen shoal
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If I had to guess TX is transmit so that's DOUT and RX is receive so DIN?

steady rose
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TX and RX

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^^ SPI pin naming has a bit of a history to it

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pico SPIx_TX would be out of the pico (i.e. MOSI)

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RX would be in (i.e. MISO)

frozen shoal
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Oh I see

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Wait, if TX is out of the pico, why's it called DIN?

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I'd assume since it has IN, it well means in?

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Sorry for all the questions, all this stuff is confusing to me

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.<

steady rose
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where are u seeing DIN?

frozen shoal
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I see it now

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MCP3008 DIN -> MOSI (white)

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It's DIN on the MCP side

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So TX out of the pico and into the DIN side of the MCP

steady rose
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yep. think in relative terms. relative to the device with the name.

frozen shoal
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I was thinking DIN on the pico side

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😅

steady rose
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the TX/RX nomenclature is very confusing

frozen shoal
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Ahh

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Oh, also would it break anything if I got those two mixed up?

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Like by accedent?

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I'd assume it just won't work right?

steady rose
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yep. most likely.

frozen shoal
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Ahh k

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Thankss

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Really appreciate it!

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<3

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^-^

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Oh wait

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Almost forgot

steady rose
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it helps to understand SPI in general

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then you just go with the flow on all the different names

frozen shoal
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Would you happen to know if I'd still be able to program the pico if I use one of these?

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Not sure if they only pass through power or both power and data?

steady rose
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cause u only have USB C cables?

frozen shoal
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XD

frozen shoal
steady rose
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hopefully they'd just work. but USB C has some fancy features that can sometimes cause hiccups.

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most likely, they'd just work though

frozen shoal
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Only issue is that it'd be double the price of a pico + adapter though

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Trying to limit the amount of money I'd waste if I break something

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XD

steady rose
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doubt anything would break

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they'd just act weird or not work

frozen shoal
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Well I don't think the adapter would break anything, it's mainly soldering onto the pads and ruining a $4 board verses a $10 board

steady rose
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yep. and the qt py breaks out fewer pins of the RP2040.

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but it has a reset button and stemma connector

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and the pins are actually labeled 🙂

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trade offs

frozen shoal
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Yeaa

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But it does have enough pins to use two MCPs right?

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Each takes four so I'd need eight?

steady rose
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yah, should work

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3 pins are shared

frozen shoal
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Ahh kk

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Thanks

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Really appreciate all the help

steady rose
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something like that

unknown.png
frozen shoal
steady rose
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that's just the SPI pins

frozen shoal
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I didn't know you could share the yellow blue and green pins

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Thought they had to be seperate

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XD

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Also

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How'd you make that?

steady rose
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fritzing

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the orange/white wires are the "chip select" (CS) wires

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those are the ones that needs to be unique

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and can be any available GPIO (digital) pin

frozen shoal
steady rose
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nothing special about using A0/A1

frozen shoal
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I see

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Got it!

steady rose
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two MCP's would look something like:

mcp1 = MCP.MCP3008(spi, board.A0)
mcp2 = MCP.MCP3008(spi, board.A1)
frozen shoal
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Alright, think I've got it now

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Also, by chance would you know how to wire load cells?

steady rose
frozen shoal
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So currently the plan is to use four of them on each corner, going to an LM324 (I think that's what that amplifier chip is called) then go to the MCP3008

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I'm wondering if I can somehow average the signal of all four sensors so I can use one channel instead of four rather then have the pico average it internally

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If that can be done I think I could get by with only using a single LM324 and an MCP3004

steady rose
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that one is only 3 wires. a little different.

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but looks like SF has a good write up about it, and load cells in general

frozen shoal
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Ohh

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I thought it would have been as simple as putting the wires in parallel

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XD

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Huh

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Wait a minute

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Get that, put the output to the LM324, now amplified, go straight through to the adafruit pico???

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Would that make it so that I'd only need one channel now?

steady rose
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don't need the actual load values from the individual load cells?

frozen shoal
frozen shoal
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The only difference is that instead of using that load cell amp it'd be with one of these

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Well apparently I'm sending links too fast but it's the datasheet for the LM324

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.<

steady rose
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is using the LM324 a requirement?

frozen shoal
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So it's be four load cells -> combinator -> one of the channels to the LM324 -> then going straight to the ADC of the adafruit pico

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So from my research the regular pico only has three usable ADCs but the adafruit pico has four of them

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Only other question I have is how to figure out how to combine the 12 wires of the four load sensors into four wires without the combinator

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It seems like it's just a bare pcb with no chips on it so I assume there's a way to do it but the board just makes it neater?

steady rose
frozen shoal
umbral sable
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I think you would need a resistor feedback network on the op-amp as well to define what gain and offset it is providing to the load-cell inputs, and then the resulting output (which is now in a good voltage range) would go to an ADC pin.

frozen shoal
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Though I'm still kinda unsure if that's correct and how it works

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Uh, worse thing that can happen is that if it's too low is that I'll lose precision (though I don't think that'll matter very much) and if it's over maybe break the qt rp2040 board?

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😅

umbral sable
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It would be wise to measure the output with a multimeter before hooking it to your board, yeah. If it's working okay you can see it change as you press on the sensors, and you can verify the range of voltages.

frozen shoal
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XD

frozen shoal
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So uh

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Does that look right?

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Also yes I do want to turn the four leds on with one pin

twin helm
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it's better to give each LED its own current limiting resistor, to balance the currents in case their forward voltages are slightly different. but that might work for a quick test

signal karma
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Anyone know when the pi shortage will end?

hard pike
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Unfortunately demand has attracted scalpers. until demand broadly falls, I wouldn’t anticipate it getting better for a while

signal karma
hard pike
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You have looked at eBay and non-authorized reseller sites, yes?

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Adafruit and Pimoroni both took steps to stop scalpers because people were buying and reselling them for ridiculously high prices

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Yes, demand has exploded. But scarcity in tech products over the last 2 years has been driven a lot by bot buyers

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Looking to make a buck in hot products.

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This is Pi 4 sold recently

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And there at 1000s more in this list of “sold” on eBay

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People are desperately needing/wanting Pi 4 so they’re willing to pay huge markups

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Geez, even unopened Pi 4 from Adafruit on that list of recently sold for huge markups

opaque wagon
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I often see 5x markup on these things 😬

unique tulip
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Yeah, if I saw a Pi 4 on sale from a non-scalper I'd probably just pick one up "in case"

frozen shoal
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Alright, thanks!

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^-^

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<3

azure basin
#

I thought this command line could be handy to keep in your grimoires:

cat /proc/cpuinfo | grep Model

Let's you know what pi you have in case you have forgotten and can't see it in a case, or a skull, or a pi controlled model.

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Also, if a Hat is installed and if If is in spec and has an EPROM setup properly, you can use /proc/device-tree/hat/ to identify the Hat, and it's function

hollow otter
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Can anyone tell me where I can find the source code for the framebuf library used in micropython?

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I want to extend it to add rotation.

final solstice
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Hello friends. It has been about six months since I checked on supply chain issue updates. I wonder, do we have any light on the horizon? I've been sort of dead in the water with getting new RP4s or Jetson Nanos. Does anyone have any recent news on that front?

tired marsh
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it's not gonna change any time soon

final solstice
thick dagger
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Hi I’m trying to measure battery life of a Lipo cell and display the percentage to a raspberry pi 4. Is there something that can help me do this?

final solstice
# hollow otter Can anyone tell me where I can find the source code for the framebuf library use...

Here's adafruit's framebuf micropython library, but it's deprecated: https://github.com/adafruit/micropython-adafruit-framebuf

GitHub
GitHub - adafruit/micropython-adafruit-framebuf: Pure python implem...

Pure python implementation of MicroPython framebuf module. Useful for boards with limited flash memory that cannot use the native C framebuf module. - GitHub - adafruit/micropython-adafruit-frameb...

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@hollow otter , the CircuitPython version is linked from there as well.

hollow otter
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The micropython version isn’t complete. It is supposed to have a text method. The one that ships in micropython has the function.

final solstice
hollow otter
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That one's not complete either =/. It's okay. I'm just going to get a different board with WIFI that CircuitPython supports. The Pico W isn't supported on CircuitPython for the wifi module yet.

wise compass
#

Anyone working with the pico-w having issues with mesh networks? It'll connect just fine to my aironet based network but my nest wifi mesh network just never connects? (Micropython, thonny, connection issue)

unknown.png
dusk flower
#

Uh... Correct me if I'm wrong.

When I enable SPI, only bank 0 goes up by default, right?

Can I still use the pins assigned to bank 1 as normal gpio?

dusk flower
#

Ok, dropped the neopixel in favour of a LEDShim

(I2C driven, no level shifters or separated PSU, easy to stash in the RFID reader casing...)

If I don't add anything else, this should be the end of it, and yet I still have pin availability for stuff like a fan!

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If I didn't occupy any reserved pin where I shouldn't, this layout would also be useful for routing the board with minimal ratnesting

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derrrrp, this should've gone in *hw-design 😐

light horizon
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Hi all, does anyone know where I can find a GPIO pinout for Raspberry Pi 2011.12 (I am not sure which model this is, this is all that it is written on the board)? I want to replace it in an installation with a RPi 4.

dusk grotto
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Is this the board?

unknown.jpeg
light horizon
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yes, that's the one @dusk grotto

dusk grotto
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Ok

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Give me one

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Thats the pinout

light horizon
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incredible, thank you so much, @dusk grotto

zinc jackal
#

I'm pretty sure I still have my 512MB Model B around somewhere

dusk grotto
light horizon
dusk grotto
zinc jackal
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I know mine still works, I just have to find it. 😅

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But then, I'm trying to get a 3D printed case for my Zero 2 W.

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...which would be a darn sight easier if I had a 3D printer.

dusk flower
dusk flower
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I think I saw one from creality at a nice price point

zinc jackal
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Well.... You could make an adaptable machine to do all three?

dusk flower
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I was thinking about getting a sainsmart instead

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it'll do both milling and laser

rain rain
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Hi adafruit,

Im developing some AWS IoT modules for a raspberry pi (actually for several) and im using the sensors of BME280, BN055 and INA260.

Each one of them im having some trouble because randomly gives spikes of 1 value (im reading and sending the value to grafana each 10 secs (aprox))
For example the temp is constant around 28-32 C degrees, but suddendly spikes to 1200 C degrees or 40 C degrees, is a bit random.
I have developed a few functions to have a natural progresion to that value (if its a true value) but the thing is I do have so many variables and want to find a proper solution.

In the docs I could not find anything usefull, and the calibration does not help.
I have tried other new sensor (of the same model) but the spikes dont leave.

Thank you.

PS: Im not sure if I should post in circuitpython, adafruit, or raspberry pi, so I will post in the 3 and if needed deleted after.

chilly obsidian
#

Hi! I recently purchased an MPR121 Capacitative Touch hat from Adafruit. It’s all soldered and currently on my Raspberry PI, but I’ve run into a recent issue. I’m using the pygame mixer script. I connect all the alligator clips to the objects before power on, but when I run it — all of the touch pads are triggering at once and it sounds quite chaotic. When I unplug the clips, the touch pad work as normal after power on. It’s currently ruining my life and I have a art installation opening on Friday. I’m an absolute novice at coding, but wondering if the continue and/or break line of code (within ‘While true’ block) is throwing it off? I’ve been switching the statements and getting varied results. Any support would be helpful!

midnight sage
#

okay I wish to know how I can program a 16 X 2 LCD Screen to show Raspberry Pi's status like CPU Temp to Fan Speed (if installed) and cpu and memory usage - can this work? I have the NEW Amiga 1200 case that supports the 16 x 2 LCD Screen

#

I would love to put as much status on it within a 16 x 2 LCD Screen

dusk flower
midnight sage
#

needs to fit inside the NEW Amiga 1200 case's LCD location

dusk flower
#

as long the controller is supported ¯\_(ツ)_/¯

midnight sage
#

Here's what I've thought of showing

cpu temp then activity
memory useage then GPU if it's still within' 16 characters

dapper steppe
#

So, does anyone know what caused the raspberry pi shortage? Is it just a whole bunch of people buying them, or an actual supply chain problem?

midnight sage
#

according to the true reason is the Auto industry and the virus

civic rune
#

What's the best way to find circuitpython libraries and install them on the pi with blinka? For that matter how can I check if blinka is already installed?

steady rose
#

import board

ruby night
#

to check for blinka you can pip3 list to see if it is installed.

steady rose
tired marsh
#

which is generally adding -circuitpython- in the middle on the name

civic rune
#

thanks folks

steady rose
#

pip list would work also, to just check if its installed

#

the blinka test script checks some other things, like if I2C and SPI are enabled

civic rune
#

oh I forgot about init'ing i2c and spi

#

would the blinka installation take longer if I have poor internet service?

steady rose
#

possibly

#

it does download stuff

civic rune
#

it currently just says "upgrading packages" and has for about 15 minutes

ripe pike
#

I'm looking for help searching for a solution to power multiple Pis off a single PSU. Ex: a "hub"/hardware that has multiple USB ports, each able to provide ~5V 2.5A. My problem is - what do I search for? what are these solutions called? I can imagine other ppl are powering multiple Pis without having a single PSU per Pi - how are they doing it?

civic rune
#

I think the process is hung. It's been over an hour since it got to the Upgrading Packages section. How can I interrupt it?

#

there we go. CTRLC

still notch
#

I am trying to build a "point and shoot" camera w/ a Rasp Pi Zero 2 W , a Rasp Pi camera, and the Adafruit Mini PiTFT - 135x240 Color TFT.

I learned:

  • camera.preview() "hard wires" previews to the HDMI port
  • there might be a way to get this to work using pygame instead of pyCamera.

So I am hopeful about using pygame. However, I follow the examples, adding

os.putenv('SDL_FBDEV', '/dev/fb1')

However, images go to a window on my HDMI display. I am looking for help on how to debug this and get it working.

Thank you very much.

civic rune
#

Is there a map somewhere of the pi pinout to the results of dir(board)?

rotund pivot
civic rune
#

that works thanks!

#

Any idea how to kill a process when the COMMAND name isn't obviously appearing in ps aux?

tired marsh
civic rune
#

That's what I figured out but completely forgot to update with

#

thanks though

midnight sage
#

Aren't the Pi 4 and Pi 3 B+ same size? if they are I'm gonna make a universal pi 4/3b+ mounts for my Amiga 1200 case project

fickle rose
#

they are the same size but they have different port arrangements so that's something to watch out for

midnight sage
#

As long it's the same size and same hole placements I'm good - I can make an universal Amiga 1200 case Pi Mount for a 4 or 3 pi

midnight sage
#

Can this work with the pi? - https://www.adafruit.com/product/292 I may use it to pull up the Pi's Status like some theses on the LCD - wanna have this display and delay for about 10 secs before switching to the next Pi Status

CPU_Act.png CPU_Temp.png GPU_Temp.png
i2c / SPI character LCD backpack

LCD backpacks reduce the number of pins needed to connect to an LCD. LCDs are a fun and easy way to have your microcontroller project talk back to you. Character LCDs are common, and easy to ...

tired marsh
midnight sage
#

if only it worked with OLEDs though - the LCD is gonna be mounted inside my A1200.net Amiga 1200 case where the display cutout is located

tired marsh
#

dunno, there are I2C monochrome oled breakouts, usually small displays

midnight sage
#

I might get those female headers and solder them onto the LCD so I can mount the LCD to the Amiga case and put it onto the header - should I use I2c or SPI to pull up the Pi's status like those generated images displaying them?

tired marsh
#

🤷 whichever is more convenient, I2C uses less pins

midnight sage
#

I2c it is working with Pi's Status will be my thing to show on the display

midnight sage
#

once I have it I'm gonna work it until I'm happy with the code from piguy's code or adafruit's own code then run it on startup

civic rune
#

how can I get the current working directory (in python at least) to stay /home/username/Desktop?

#

between reboots

tired marsh
#

making the current working directory a certain directory when you run a script ?

#

oh, start your default shell in a different directory ?

civic rune
#

yeah the second thing

tired marsh
#

what shell is it ?

civic rune
#

I'm using thonny since it came with the device and getting anything on a pi 3 is a pain

#

anything new

tired marsh
#

so not the default shell, you mean start python in a certain directory in Thonny ?

civic rune
#

indeed

#

yeah bad wording

tired marsh
#

well, don't know if that's an option

civic rune
#

no worries

fierce spire
#

ive used ping on my raspberry pi zero w and its going for like 5 minutes its at 350 times now when will it stop?

opaque wagon
#

It never stops

#

Use control+c to stop ut

#

(that should stop almost any cli program)

dusk flower
#

Ok, if I'm understanding the docs right, EEPROM on hats serves to set the state of the pins on boot, right?

ruby night
dusk flower
#

So I use input for a button, output for a led, and ALT0-5 for the function assigned to that pin on that alt level (i.e. SPI pin)?

snow timber
civic rune
#

does anyone know how to tell what services are running at a given time on your pi?

vocal lava
#

That's prcoesses. You can try top too

civic rune
#

thx

tired marsh
# 
service --status-all
civic rune
#

ok my service is running, but the code (which I checked works fine, it's just blinking an LED) is NOT running.

#

here's my service, it's patterned off of one that is working.

[Unit]
Description=test service

[Service]
Type=oneshot
ExecStart=/home/pi/Desktop/test2.py
StandardOutput=null

[Install]
WantedBy=multi-user.target

I feel like this should just be working. I also ran sudo systemctl enable testservice.service where testservice.service is the name of my service. Anyone have any hot tips?

vocal lava
#

And no issues when you run test2.py from the command line?

civic rune
#

let me try

#

no it works fine

vocal lava
#

Did you do sudo systemctl start

#

or just enable

civic rune
#

just sudo systemctl start?

#

oh

#

yeah

#

I did

#

I checked and it's enabled

#

I checked using systemctl list-unit-files

vocal lava
#

What does systemctl status servicename say?

civic rune
#

one moment

#

ah failed

#

"failed at step EXEC spawning /home/pi/Desktop/test2.py: Permission denied"

vocal lava
#

+x

civic rune
#

ahh I remember doing this in the past

#

ok time to reboot and test

vocal lava
#

you shouldn't need to reboot

#

sudo systemctl restart servicename

civic rune
#

welp already did heheh

#

time to also write this all down

vocal lava
#

better safe than sorry!

#

🙂

civic rune
#

ok the code is still not running, let me check status again

#

I think rebooting is better because I'm trying to test that it runs on boot

#

ok now it's failing with "exec format error"

#

let me check my syntax

#

seems fine

vocal lava
#

Oh, that won't work

#

you need to call python to run that like /usr/lib/python3 yourscript.py

civic rune
#

huh

vocal lava
#

This line: ExecStart=/home/pi/Desktop/test2.py

civic rune
#

my older service works on another pi just fine and is bit for bit identical to what's above

#

except it's not test2.py it's the name of other code

vocal lava
#

Right, I bet it's an executable of some kind

civic rune
#

ohh so I need to make it an executable?

vocal lava
#

Here's an example of mine, but I use a virtual env: ExecStart=/home/prcutler/workspace/pi-dial/.venv/bin/python /home/prcutler/workspace/pi-dial/pidial.py

civic rune
#

I remember doing that now! This is completely an argument for writing things down

vocal lava
#

See how I'm calling python to run the script?

civic rune
#

yeah I do see

#

so the first bit (pi-dial etc) is finding where python is?

vocal lava
#

which python3

#

will tell you

vocal lava
civic rune
#

ok let me try this

#

do I need to re-enable the service after I edit it or anything?

vocal lava
#

restart it

#

sudo systemctl restart servicename

civic rune
#

ack gotta edit this in sudoed nano

civic rune
vocal lava
#

If you edited the file, pretty sure, it's been a while since I've touched systemd

#

If it told you to, I would

#

systemd is one of those things that once I've got it working I never want to touch it again. 🙂

civic rune
#

Oh I can relate!

vocal lava
#

I thought you might!

civic rune
#

or stop it or whatever. I just wanted to test that I could get it working

vocal lava
#

Yay!

#

sudo systemctl stop servicename

civic rune
#

perfect

#

I'll have to time it such that my light isn't on when i stop it hehe

#

ok time to write this down somewhere

#

and if I want to re-enable the service? just enable?

vocal lava
#

If you enabled it, it will autostart on boot

civic rune
#

oh so even though I told it to stop?

vocal lava
#

correct, that's what enable does.

#

start, stop and restart are the ones you'll usually run when updating it

civic rune
#

oh sorry if I stop it, it will still run on boot because I enabled it?

#

is that right?

vocal lava
#

Correct

civic rune
#

so how can I stop it forever? Disable?

vocal lava
#

Yup

civic rune
#

that makes some sense!

#

OK! thank you very much

vocal lava
#

If it's running when you disable it, you still need to stop it. But it will not start after rebooting

civic rune
#

that makes sense. OK

opaque wagon
#

Systemd is great, but hopefully u will never have to touch it again lol

civic rune
#

I'm writing it up now so it's painless in the future!

civic rune
#

Does anyone know what "language" a .service file is written in? I'm using a code formatting plugin for docs and it takes a language input

vocal lava
#

I don't think there is a code language associated with the systemd files

civic rune
#

really?

vocal lava
#

They're not YAML, TOML, etc.

#

It's just a text file

civic rune
#

Hmm

#

I notice in NANO, that anything inside [] blocks is highlighted. What does that signify?

vocal lava
#

Not sure, my nano didn't do that when I opened up one just now

civic rune
#

ok well

#

I'll just use bash

#

thx

tired marsh
#

does it have ini file or something ?

midnight sage
#

Can the py autostart Py Scripts? I need to have a script autostart on boot to desktop

vocal lava
midnight sage
#

I wonder how I can do that once I my LCD status is finished

civic rune
#

When you point ExecStart to python first and then to a file, what exactly are you doing? Are you saying "here's my thing that does executions and then here's my file to execute with it"?

vestal root
#

Do you think I would be possible to use a raspberry pi 4 as a keyboard?

civic rune
#

absolutely

#

but

#

a waste of resources for the most part

#

A pi 4 is quite powerful, you don't need anywhere near that power to run a keyboard

vestal root
#

Eeeeh, depends, I want to create a thing that I could plug into my server, it would login and run somes commands while hosting a web page so I can know what's its doing and when it's done

#

I would have bought a pi zero w if I wasn't out of stock everywhere

#

I have at home a pi4

#

Kinda like a bad USB but to update /upgrade my server

midnight sage
dusk flower
midnight sage
#

it's a 16x2 character LCD I'm gonna use which the Amiga 1200 has for the HxC FLoppy Drive Emulator

dusk flower
#

There's one that seems to fit the bill

#

You need to install the psutil module

midnight sage
#

Gonna use Adafruit's LCD library since I'll be getting their LCD Backpack then make the LCD do this and waits to change the the other CPU Status

LCD_Demo.gif
dusk flower
vocal lava
midnight sage
#

would it work with their Backpack driver?

dusk flower
#

Of course, it's just a data fetcher, what you do with it is your problem

#

Btw, that backpack is a hd4870, the most generic controller ever, and luma.lcd will do the job gracefully, go at least try the demo I linked

midnight sage
#

it will come in handy once I have it since it's a 16x2 Driver I'm wondering if it works with one of Sparkfun's LCDs they make it's basically the same LCD but their branding

dusk flower
#

Same controller, same functionally

vestal root
#

Does anyone have a guide or something to use a pi 4 as a hid device?

dusk flower
#

I think Zero can do it, don't know if 4 has the required boot mode for doing so

vestal root
#

Yeah but almost 100€ for a zero is e x p e n s i v e
Maybe the boot mode or something can be changed?

dusk flower
#

Look at the documentation on Pi site

dusk flower
vestal root
#

Sad

dusk flower
#

Yep

vestal root
#

Guess I'll buy a Pico tomorrow and a zero when the price will be lower than my grades nice

dusk flower
#

I'd like to use a 4 for this project of mine, "stuck" with a 3b+ and a blind 2b

vestal root
#

I have a pi 4, it was used until fews days ago as a temporary router, now I'm looking onto a new user for it

dusk flower
#

I also have two 0s, but I need them for another project on hold 🤣

#

Need to find a way to make a conf webpage for it

vestal root
#

I'll break into yo house and steal your 0s

tired marsh
#

FYI the 4 does support OTG on the USBC port

broken bay
#

Hi im a beginner with circuitpython, so I played a bit with it on Thonny but now I wanna try to get on a bigger project so I'll be using pycharm. I followed this tutorial : https://learn.adafruit.com/welcome-to-circuitpython/pycharm-and-circuitpython ; it worked perfectly until I ran the code and I got this error :

  File "D:\code.py", line 2, in <module>
    import board
  File "C:\Users\||nope||\AppData\Roaming\Python\Python39\site-packages\board.py", line 279, in <module>
    raise NotImplementedError(
NotImplementedError: Adafruit-PlatformDetect version 3.27.0 was unable to identify the board and/or microcontroller running the Windows platform. Please be sure you have the latest packages running: 'pip3 install --upgrade adafruit-blinka adafruit-platformdetect' ```
so apparently pycharm is not detecting my board, thonny detects it and run the code perfectly and the adafruit-platformdetect is updated to its latest version so I dont really understand lmao.
I also saw this post https://forums.adafruit.com/viewtopic.php?f=24&t=188542 but I didn't understood that much and idk if it's relevant so I'll need some help I guess 🙃 (sry for spelling mistakes and stuff im french)
Adafruit Learning System
Welcome to CircuitPython!

New to CircuitPython? This is the place to start.

Adafruit customer service forums • View topic - Unable to identify ...
tired marsh
#

what board are you using ?

broken bay
#

and im on windows btw

tired marsh
#

Thony detects the board and shows the repl and lets you execute a file directly on the board with the run button, with pycharm you have to connect to the board manually to see the output of code.py

broken bay
#

ooh ok ty

broken bay
#

as tio is not available on windows what software should I use ?

tired marsh
#

ah, right on windows I don't know, Tera Term, Putty ?

broken bay
#

k im downloading Tera Term rn

#

should I go for standard or full installation ?

#

ok I went for the full one my pc is not gonna die for 4 MB

#

okayy it's not working

#

well I'll just go for vs code this time

#

anyway thank you for your help the explanations were really good

bitter fiber
#

@broken bay Actually, you can install tio on windows via msys2 or wsl/ubuntu.

broken bay
#

well ok im gonna give it a try

civic rune
midnight sage
civic rune
#

ok check out this guide when you're ready

#

The process is a little different for python files but this is the background you need

tame notch
#

Hello everyone. İ want to install latest version blinka to my jetson Nano. But i can install just 6.15.0 version l. Ubuntu list version from 1 to 6.15 but there is not 7 and abone

dusk flower
#

Use pip3

hushed vortex
stone pecan
#

I am trying to connect to a second PCA9685 with my RPI and python, however; i can not figure out how to call the second chip in the code. Can someone point me to some example code on how to control PCA9685 with circuit python?? https://github.com/adafruit/Adafruit_CircuitPython_Motor/blob/main/examples/motor_pca9685_servo_sweep.py

GitHub
Adafruit_CircuitPython_Motor/motor_pca9685_servo_sweep.py at main ·...

Helpers for controlling PWM based motors and servos - Adafruit_CircuitPython_Motor/motor_pca9685_servo_sweep.py at main · adafruit/Adafruit_CircuitPython_Motor

#

i have connected both chips, and assigned the address etc. Im not sure how to call the second chip in the code.

upper oracle
#

im having the same issue ^

steady rose
#

pass in the alternate address as a parameter when setting up the PCA instance

upper oracle
#

do you have to use circuit python for this?

steady rose
# 
pca1 = PCA9685(i2c)  # use default 0x40
pca2 = PCA9685(i2c, address=0x41) # specify 0x41
upper oracle
#

okay thanks

steady rose
#

the library is circuitpython, but can be used with regular python on an RPI using Blinka

scarlet latch
#

Hey guys, I am looking for to use some industrial sensors that are 4..20ma and land them into my raspberry pi. Have you guys done something like this? Any recomendations for an interface board?

upper oracle
#

do i have to create another ic2 for this in the code?

steady rose
#

nope. that gets shared.

upper oracle
#

gotcha

versed fjord
#

could some one point me in the right direction ... I got the adafruit is2 audio bonnet to work with my pi Zero W .... I want it to work with omxplayer (command line audio), but after the initial install (where you test the sounds in left speaker and right) no audio plays

#

would this be a question for Audio ?

vocal lava
#

This channel should be fine

vocal lava
versed fjord
#

yes sir I did

#

everything but the detail install

#

that was my next step

#

oh I did not try the /dev/zero playback option

tame notch
#

Hello again i installed blinka as your advise to my jetson Nano. But getting error like this at finally

queen sandal
#

Is it possible to run an Led straight from a 3.3 GPIO pin or should i use something in between?

umbral sable
queen sandal
#

I need to run 16 individual leds at different times. will that have an affect on the pico or should i use a driver

umbral sable
#

There's typically a datasheet spec for the total current that all the GPIOs in a MCU can source together. You should be fine if the LEDs are (just as a ballpark) less than 5mA each, but might run into Pico limitations if they are more like 20mA.

tame notch
#

Hello again i installed blinka as your advise to my jetson Nano. But getting error like this at finally

hushed vortex
# tame notch Hello again i installed blinka as your advise to my jetson Nano. But getting er...

Hi, it looks like Setuptools is missing. Make sure you have everything updated by following this section in the same guide: https://learn.adafruit.com/circuitpython-libraries-on-linux-and-the-nvidia-jetson-nano/initial-setup#update-your-board-and-python-3039592

Adafruit Learning System
CircuitPython Libraries on Linux and the NVIDIA Jetson Nano

Make hardware and interface with sensors super easy using CircuitPython

tame notch
tame notch
lament swan
#

Hello, I am trying to install the new picamera2 library (https://github.com/raspberrypi/picamera2) based on the new libcamera stack in Rasbian Bullseye. I am running into issues when I run pip install picamera2 at the point where it is trying to install PyQt5. I've looked at various posts on the internet and they all say "make sure qmake is on PATH" and I don't know how to "make sure" that it's on PATH. Like how do I know I have qmake (where do I get it?), where is my PATH (I want this in a virtual environment so the obvious $HOME/bin" does not hold here. And once I figure out my PATH, how do I make sure qmake is on it? Any leads?
Thank you in advance

GitHub
GitHub - raspberrypi/picamera2: New libcamera based python library

New libcamera based python library. Contribute to raspberrypi/picamera2 development by creating an account on GitHub.

agile spindle
#

Anyone know if it would be possible to create a program which uses the Pis sound card to detect if the duration of a tone played and transcribe the duration of the tone played in seconds? I need to be able to detect the loudest sound (the tone) amongst background noise

#

And if so does anyone have resources relating to the topic

umbral sable
#

You'll probably want to investigate FFT (Fast Fourier Transform), which is how you would pull out the frequency components of an audio signal.

hard pike
#

FFT + Windowing techniques are very useful in audio processing:)

vocal lava
agile spindle
umbral sable
#

And if you know the specific frequency tone you're looking for, you can be more efficient, too, with a bandpass or Goertzel filter.

agile spindle
lament swan
# vocal lava To check if you have qmake, do a sudo apt-get install qmake - if it's installed ...

Thanks for entertaining the question. I do/did have qmake. It’s in my ‘/usr/bin’ folder. I also had pyqt5 but in the root user. It was installed using “sudo apt-get install python3-pyqt5”. I just wasn’t able to get it inside my virtual environment. My shoddy workaround that was to enable my virtual environment to be able to pull from system-site-packages. After that picamera2 was a breeze. I know that it’s kind of against what a virtual environment does, but that was the only way I was able to get pyqt5 to allow picamera2 to install. If anybody finds an actual way to install pyqt5 inside Python virtual environment, please remember to publish it somewhere for folks like me 🥲
My problem and my solution to it is posted at:

https://forums.raspberrypi.com/viewtopic.php?p=2027822&hilit=Picamera2+fail#p2027822

vocal lava
#

Glad to hear you got it working. 🙂

versed fjord
#

i was hoping some one could help me with omxplayer install on my pizerow with is2 audio bonet .... I am using the guide here "https://github.com/popcornmix/omxplayer" and its the " make -j$(nproc) " command that I get an error at

steady rose
#

what's the error?

versed fjord
# steady rose what's the error?

bash gen_version.sh > version.h
g++ -pipe -mfloat-abi=hard -mcpu=arm1176jzf-s -fomit-frame-pointer -mabi=aapcs-linux -mtune=arm1176jzf-s -mfpu=vfp -Wno-psabi -g -std=c++0x -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -DTARGET_POSIX -DTARGET_LINUX -fPIC -DPIC -D_REENTRANT -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -DHAVE_CMAKE_CONFIG -D__VIDEOCORE4__ -U_FORTIFY_SOURCE -Wall -DHAVE_OMXLIB -DUSE_EXTERNAL_FFMPEG -DHAVE_LIBAVCODEC_AVCODEC_H -DHAVE_LIBAVUTIL_OPT_H -DHAVE_LIBAVUTIL_MEM_H -DHAVE_LIBAVUTIL_AVUTIL_H -DHAVE_LIBAVFORMAT_AVFORMAT_H -DHAVE_LIBAVFILTER_AVFILTER_H -DHAVE_LIBSWRESAMPLE_SWRESAMPLE_H -DOMX -DOMX_SKIP64BIT -ftree-vectorize -DUSE_EXTERNAL_OMX -DTARGET_RASPBERRY_PI -DUSE_EXTERNAL_LIBBCM_HOST -I./ -Ilinux -Iffmpeg_compiled/usr/local/include/ -I /usr/include/dbus-1.0 -I /usr/lib/arm-linux-gnueabihf/dbus-1.0/include -I/usr/include/freetype2 -isystem/opt/vc/include -isystem/opt/vc/include/interface/vcos/pthreads -c linux/OMXAlsa.cpp -o linux/OMXAlsa.o -Wno-deprecated-declarations
linux/OMXAlsa.cpp:22:10: fatal error: IL/OMX_Core.h: No such file or directory
22 | #include <IL/OMX_Core.h>
| ^~~~~~~~~~~~~~~
compilation terminated.
make: *** [Makefile:49: linux/OMXAlsa.o] Error 1

steady rose
#

did you run ./prepare-native-raspbian.sh?

versed fjord
#

yes

#

pi@raspberrypi:~/mygitstuff/omxplayer $ sudo ./prepare-native-raspbian.sh
Modifying for native build on Debian
Checking dpkg database for missing packages
................
All dependencies met
Checking for OMX development headers
...
All dependencies met
Checking amount of RAM in system
You should have enough RAM available to successfully compile and run omxplayer.

#

sorry new to discord ... i wanted to past that as code

steady rose
#

looks like that repo has not been touch in years

#

guessing things have changed with latest OS releases

#

in terms of specific locations for the dependencies

#

(there's info in #welcome about how to do code markup)

versed fjord
#

yeah omxplayer is being depricated for VLC ...but I run a simple program(also from git) that does a call to prayer 5 times a day and it uses omxplayer ...it works on the old pi model b just fine but now trying to get it to work on my pizero w

steady rose
#

yah, just not in the package (libraspberrypi-dev) anymore

versed fjord
#

humm

versed fjord
#

i think I know what i will do

#

go to legacy version of raspberry pi ( buster instead of bullseye)

#

that way things should work better i think

misty crypt
#

Is this an appropriate channel to ask pi pico questions (PIO in particular), or would there be a better channel? (Where's help-with-help? 😛 ) Thanks.

vocal lava
opaque wagon
faint sparrow
misty crypt
#

Thanks everyone.

worn drift
#

i've made a little raspberry pi + solar powered rover and it has a pi cam. is there a way to connect a second pi cam to it, so that i can have 1 camera facing "forwards" and the second facing "backwards"?

ruby night
worn drift
#

would that work with raspistill ?

ruby night
worn drift
#

i've never used a raspberry pi compute module, does that attach to my existing raspberry pi? or replace it?

ruby night
worn drift
#

if i'm using raspbian currently, can i just use my same raspbian image on a pi compute module?

worn drift
ruby night
#

I have not done a lot with raspian on the compute modules, but I think it uses the same images as any Pi.

worn drift
#

i made a little solar powered, pi powered rover and a little website where people can see what it's doing and send commands to move it (basically for my friends, lol). but while working on it, you can issue a "move backwards" command but you can't really see where you're going yet... 🙂 trying to solve for that problem

ruby night
#

It provides a webserver to look at the videso.

#

I then us a separate python program to "drive"

worn drift
#

does the webserver run on the pi? i'm trying to stream it publicly

ruby night
#

yes

#

I use it for several "web cam" applications.

worn drift
#

ah i see, this camera IO module connects to a pi compute module. dang the pi compute modules look to be all sold out currently

ruby night
#

all pi's are tough to get these days. The above webserver runs on a Pi zero w or pi zero 2

#

or any other pi with wifi.

worn drift
#

maybe i'm confused - does https://www.adafruit.com/product/4787 only connect to / work with a https://www.adafruit.com/product/4782 ? or can you connect to it any pi zero, pi3/4, etc?

Raspberry Pi Compute Module 4 IO Board

Exposing every interface from Raspberry Pi Compute Module 4, the Compute Module 4 IO Board provides a development platform and reference base-board design for the most powerful Compute ...

Raspberry Pi Compute Module 4 - 1GB / No MMC / No WiFi (Lite)

The Raspberry Pi Compute Module 4 is based on the Raspberry Pi 4 Model B, but in a smaller form factor - perfect for embedding into products or projects without the bulk of a classic ...

ruby night
#

it only connects to a compute module

#

the arducam adapter connects to a regular pi., I think..

worn drift
#

cool, thanks! i'm real interested in that 2 camera module IO board and copute board.. i'll add that to my wishlist for when they're back in stock. til then i'll look for a cheap usb camera 🙂

ruby night
#

Good luck!

worn drift
#

kind of related, do you happen to know what gps options are for a pi? i've seen the hats - but i already have a hat and it's unclear how i can add more hats on top of hats.. that don't have the plugs/pins

ruby night
worn drift
#

wonderful thank you, i appreciate it 🙂 i think that will do the trick. i'm trying to geo-fence my rover so people can't drive it in to the pond 😅

ruby night
#

Good plan!

edgy oar
ruby night
edgy oar
#

Yeah,; but using just motion, as I was before, was crushing the Pi. Load avg was ~4 and it would eventually crash after a day or two. Now load is <1

#

seems fine!

midnight sage
#

Could it be possible to use a SSD for the Pi 3B+ instead of SD Card?

hard pike
#

Might be hard

#

but maybe someone has made a sata to sd bridge

sonic scroll
#

On what board should is be possible to make a platform like adafruit io?

somber yacht
#

Hi guys, I have a question about powering the rpi 4. I have the buck converted I linked below. If I take the usb out and plug that into the pi I have no issues. If I take the +/- pins and connect them to pin 4 and 6 on the header the pi seems to power up but never connects to wifi and when I plug it in via ethernet both lights on the jack light up but the activity light does not blink just stays constant. If I take the +/- out and plug that into the usb port I have no issues again.

Anyone know why the network wont connect when I power the pi via pin 4 and 6?

https://www.amazon.com/dp/B0989DKYWN?psc=1&ref=ppx_yo2ov_dt_b_product_details

Buck Converter Module 12v to 5v 5A USB Voltage Regulator DC 9V-36V ...

Buck Converter Module 12v to 5v 5A USB Voltage Regulator DC 9V-36V Step Down to USB 5V Transformer Dual Output Voltage Regulator Board for Phone Fast Charging(2 PCS)

half nexus
#

Hi there, dumb question, it's either hit or miss.
Can I run micropython code designed for RPI pico on a normal RPI (1 B+)

opaque wagon
#

no, you will have to modify the code for regular python

lapis stratus
#

Following the guide for getting the WS2801 up and running I'm in trouble.

D6 for serial clock and D5 for serial data - nothing when running the sample code 😓 the first LED changes color when I touch the green serial jumper cable though 😅

20220815_215119.jpg
#

Okay nevermind, the t was not pushed into all the way into the GPIO of the pi

bronze dock
#

crosspost from the help-with-projects channel, since its a raspi and I don't know which chan is more appropriate. apologies if this is a no-no:

#

heya! still working on my space station/space object pointer, been thru a few different revisions, and just wanted to sanity-check my next bit of code before I start writing it out. make sure im not missing some idea or library that will make this part simpler:
I have a servo connected thru a slip-ring, on top of a stepper, so it can spin forever without getting wires tangled. the stepper will spin 360 to point in any direction needed, and the servo can point from DOWN to UP, to cover any elevation needed.
I get my space station location info from the internet, using JPL's Horizons system, but I can't be %100 connected, so I plan on downloading info for the next 24hrs, perhaps 1min resolution, upon startup. that would be 24*60 = 1440 lines in my table. and then save that to a file on my raspi...
each line in the table will include TIME (24h:MM:SS), AZIMITH (0.00 - 359.99), and ELEV (0.00 - 179.99)

my thought for each update/loop is to: find the appropriate line in my table based on current time (probably remembering my last location so I dont have to run thru the whole table each loop). if the value has changed more than 1 step, then take a step.
am i overcomplicating or brute forcing this? am I missing some tool or library that could make this easier? or does this seem like a reasonable solution?

midnight sage
#

here's a silly question can the Pi have a "bootup" sound that plays on power up?

civic rune
#

Yes

#

You can do it in a few languages

#

But it probably won't be right on bootup like you're thinking?

turbid rivet
# midnight sage here's a silly question can the Pi have a "bootup" sound that plays on power up?

Have you tried any of the solutions here? The post is a bit dated but it should still work in theory. https://raspberrypi.stackexchange.com/questions/24723/create-startup-sound

Raspberry Pi Stack Exchange
Create Startup Sound

I know that this question has already been answered, but the method described here
is actually not working for me... o.O
I read in some other forums that a different formatting is required, but I d...

dusk flower
midnight sage
boreal zenith
#

hi, I have a heating mate with a power of 18w, powered by alternating current, I would like to control the heating power using rpi poco, is there a module that will allow me such integration? Can such a mate be powered with direct current and use a motor driver?

https://botland.com.pl/raspberry-pi-hat-kontrolery-silnikow-i-serw/13304-dwukanalowy-sterownik-silnikow-dc-interfejs-i2c-nakladka-hat-dla-raspberry-pi-waveshare-15364-5904422377243.html

BOTLAND
Dwukanałowy sterownik silników DC, interfejs I2C

Dwukanałowy sterownik silników DC z interfejsem I2C, w formie nakładki HAT dla Raspberry Pi, znajdziesz w sklepie dla robotyków Botland.

half nexus
#

I am dumb at it.

worn drift
ruby night
ruby night
meager girder
#

I'm not sure of that jerryn if it's the rpi 4

ruby night
#

For powering the Pi -- it can be finicky, but the USB GPS sensor would connect to the USB-A ports, I think ,and should be more forgiving but I'll defer to others with more information.

meager girder
#

I see should be fine in this case, I never found any gotcha for the usb cables besides the one that power the rpi itself. I missed the gps at the top, my apologies

faint sparrow
#

Hey. I have a weird problem, and I am not sure how to troubleshoot it. I use Pi400 with Pimoroni Hyperpixel4 display (no touch) with Adafruit cyberdeck hat. It works and all, but... If I run the system in multi-user.target, and run some graphical app, the picture flips in a way like it was ignoring a rotation config. Everything works fine in graphical.target. I was also not able to make the display work properly on lite version of the system which does not install desktop env and runs only in multi-user.target. I assume that the display to function properly needs that desktop env. Where should I dig to troubleshoot that flipping image? Is it weird driver problem? Is it some setting in graphical.target config? Is it something lacking in milti-user.target config? What can cause it?

#

I run newest raspi os 64bit.

lament swan
# bronze dock heya! still working on my space station/space object pointer, been thru a few di...

@bronze dock That seems like a very reasonable plan: Estimate the location of where you should be in the future and move towards that location. But I have some confusion. Could you please explain what you mean by “find the appropriate line in my table based on current time”? If the data is 24hrs old, your current time won’t be in it. Or if it’s at a 1 min delay, then your current time still won’t be in it, it would be delayed by a minute.
What will you be doing with the rest of the history?

lament swan
patent vale
#

I have a european layout keyboard but the raspberry is getting it as an us, can i change it?

steady rose
#

yep

#

try raspi-config

patent vale
#

One moment im running one thing rn

patent vale
steady rose
#

yep. did you find the settings?

patent vale
#

Im in

#

I cant find the keyboard thing

#

Now i just did

steady rose
#

it there a localization option?

#

it'll be buried a few menus down

patent vale
#

Lol

#

How do i know which one it is

steady rose
#

are there generic options?

patent vale
#

Ye

twin helm
patent vale
#

Yes im running a adsb feeder with deabian 🙃

#

I guess the generic intl ones will do?

#

Done

#

I selected logitech and then it let me configure more things

#

Thanks for help cater!

hollow jewel
#

hey

hard pike
lapis pine
#

anybody know how to solve this? i am running windows IoT core on the raspberry and this is through IoT dashboard from microsoft

edit: solved can't do it without a extra module

unknown.png
#

someone pinged me?

vocal lava
#

I was trying to reply, but the bot flagged me. I was going to say there is an Azure channel on the Microsoft Python discord that may be able to help, too

#

If no one here knows the answer

lapis pine
#

would you be able to invite me into that discord i am not sure if i am in it

vocal lava
#

Sent a DM

ornate bluff
#

have y'all ever heard of orange pi? is it decent compared to raspberry pi?

meager girder
#

meh

dusk grotto
meager girder
#

often imitated never duplicated

#

never seen a pi clone that exceed pi4 capabilities at the same price range

#

i had months to look while waiting for pi4 to be in stock

dusk grotto
meager girder
#

apple pi wpuld probably be nice though

#

connect to apple ecosystem Apple version of pi4

ornate bluff
#

The project I'm working on right now is I have a device that only supports Ethernet, and I need it to connect to a network (wired or wirelessly) but block a specific port from being available to that whole network

#

So an orange pi might be fine, since I won't use GPIO at all or any rpi-specific thing, I just need the cheap ethernet port with Linux ability

meager girder
#

I think you should check if the software is mature enough

#

Saw several where they say the software is unstable, lack polishing etc. I think that will be the compromise you'll really need to make and also less ports etc

alpine fox
#

Is it possible to fry the pimoroni 4 inch screens by installing them on the board backwards by mistake and powering on the pi?

meager girder
alpine fox
#

It uses gpio for video

#

I2C specifically

civic rune
#

If I'm powering a pi with a USB cable with only power lines and free ends into a trimmable ac dc converter, should I trim up to 5.1V?

meager girder
#

yeah so the 40 pins header are the gpio

#

afaik

#

and that cable has a latch to prevent you from putting it the wrong way

#

and one of those 40 pins is the power and another one the ground

civic rune
#

2 are power and many are ground

#

Pinout.xyz is a good site

meager girder
#

seems the hyperpixel 4inch tft has a female header to plug directly into the 40 pins

#

hence their question

civic rune
#

That's pretty common yeah

meager girder
#

in that case I don't know because there is nothing to prevent you just with 2 40 pins headers from connecting it the wrong way

civic rune
#

Usually you have to look at pics.

#

To be sure

meager girder
#

yeah or a video like https://www.youtube.com/watch?v=2mtP8-Q2iHA&t=85s

YouTube
Hamed Taha
HyperPixel 4.0 - Hi-Res Display for Raspberry Pi – Pimoroni

A high-resolution, high-speed 4.0" TFT display for your Raspberry Pi with optional capacitive multi-touch!

Product page
https://shop.pimoroni.com/products/hyperpixel-4

Task List using Raspberry Pi 3 and 7.5" E-paper Display
https://youtu.be/OW4GYmzWOb8

Social Networks
Blog: http://www.hamed.me
Twitter: https://twitter.com/hamedtaha
FaceBook...

▶ Play video
civic rune
#

You can also tell based on mounting holes

meager girder
alpine fox
#

So how do i check to see that the screen isn’t fried?

meager girder
#

is that an rpi 400? can you confirm what you actually have please ?

alpine fox
#

Yes it’s an rpi 400 with a gpio breakout board

meager girder
#

and the screen? I assumed it was an hyperpixel 4.0 from pimeroni, what is it actually ?

alpine fox
#

That’s exactly what it is

#

The 4 inch landscape 800x480

tame notch
#

I am using jetson Nano and tensorflow using Python 3.6 however i need blinka. Blinka is want Python 3.7. i dont know what i do. Tensorflow and blinka must be together on jetson Nano

#

Do you help me !

ornate bluff
#

then just use TensorFlow 2 if you need 3.7+

lament swan
#

Hello, I want to know if someone knows a shortcut for this. Everytime I have to run my favorite python script, I have to activate my virtual environment from bash. Then I have to navigate to the folder that the script is in (it calls upon other scripts whose path is inside the folder) with cd ~\myfolder\mynestedfolder\. Because I use pigpio to control pins, I then have to run the pigpio daemon (if I just powered on the Pi) with sudo pigpiod then I do python3 myfavoritescript.py . I want to know if within my myfavoritescript.py file I can add a bash script that does all of the above i.e. activate virtual environment, navigate to the correct folder, then start the pigpio daemon if it's not started. It's also ok if it's not within the python script, and I just have to run a activatealloptions.sh shell file. But it shouldn't take me more than one line to do that. Makes me sound like a lazy person but I expect computers to do more for us. Please let me know if you have any leads on this because I've been searching for "insert bash script inside Python file" and the result don't seem to be relevant enough for me.

vocal lava
steady rose
#

i think there's a one line way to run the script and invoke the venv at once

#

don't need a bash script

#

it's just a syntax thing, as i remember

#

you then just alias that

#

hmmm..but youre also wanting to dynamically launch the pigpio daemon

lament swan
#

I know it's just wishful thinking but I was wondering if there was a way to do it.
To invoke the venv, I use source ~/.profile then workon myenv

#

I'm using a virtual environment wrapper that makes the commands shorter I guess

tired marsh
#

I would wrap your python code in a shell script added to your path, or an alias

analog ore
#

hey, can you guys help me?
I'm trying to USB boot my CM4, modified the bootloader order but USB power for some reason stays off..

even with USB_MSD_PWR_OFF_TIME=0
My file is:

[all]
BOOT_UART=0
WAKE_ON_GPIO=1
POWER_OFF_ON_HALT=0

# Boot Order Codes, from https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#BOOT_ORDER
# Try SD first (1), followed by, USB PCIe, NVMe PCIe, USB SoC XHCI then network
#BOOT_ORDER=0xf25641
BOOT_ORDER=0xf165

# Set to 0 to prevent bootloader updates from USB/Network boot
# For remote units EEPROM hardware write protection should be used.
ENABLE_SELF_UPDATE=1

MAX_RESTARTS=5
#HDMI_DELAY=5
#VL805

NET_INSTALL_ENABLED=1
NET_INSTALL_KEYBOARD_WAIT=900
USB_MSD_PWR_OFF_TIME=500
analog ore
#

Ps @ me with replies. Thanks

swift sky
#

I just watched "THE GREAT SEARCH - Latching Power Relay for FeatherWing ". Will there be a feather produced with the higher power relay, or is the intent for the customer to build one. Also, can a feather be easily connected to a RPi Zero, looks like the pin outs do not match up?

lone silo
#

Hello everyone, I'm looking for a module to put a SIM in my raspberry pi. What would be the best options?

dusk flower
#

Can I enable multiple i2c overlay on the same bus?

I.e. connecting an RTC and a pca9548 in parallel

dusk flower
#

You might use either an USB stick, and it'll become a network interface, or a dedicate hat, like this one

https://sixfab.com/product/raspberry-pi-base-hat-3g-4g-lte-minipcie-cards/

(It also works with usb)

Sixfab
onur
Raspberry Pi 3G/4G-LTE Base HAT

You can insert 3G/4G & LTE mini PCIe modules and this Base HAT becomes a bridge between Raspberry Pi and modem. This cellular HAT provides simplified data connection for remote IoT projects, on the field, across the globe, everywhere. Start using a high-speed LTE connection with low power consumption in a slim form factor with all necessary soft...

lone silo
#

Yes, GSM/LTE

agile depot
#

What's the maximum sample rate and bit depth of the Raspberry Pi Zero W's I2S audio input? I'm hoping to input a 96-192khz 24 bit I2S signal and have it act as a USB microphone/line in device on my laptop via the onboard USB OTG port

frosty robin
#

forgive me if im wrong but this should be fine correct?

unknown.png
swift sky
agile depot
#

What i meant is that i have a 192khz 24bit I2S signal that id like to translate into a USB audio input for my laptop. Almost like a USB microphone, but without the microphone.

#

I just need to know if the pi can handle such a high resolution I2S signal

worn drift
#

in your python script, i think you can also do as the very first shebang line: #!/path/to/virtualenv/bin/python and then that should work with ./myscript.py on command line 👍

swift sky
agile depot
swift sky
# agile depot It should work with USB 2.0 right?

It claims USB 2.0, I would use a Pi 4 USB C. You can get it at Amazon, and return it if doesn't work. But you will need some software on the PI side. Focusrite might have software for Linix, but it probably won't run on an ARM/Pi processor. Also notice the specs say "Compatibility: USB-C iPad Pro " and "Power Supply: USB bus powered ".

agile depot
#

I'm not planning on using this, i was just showing that 192khz 16 bit audio can be put through USB 2.0

#

Which the Pi Zero W i plan on using has

half nexus
#

Geniuent pi OS question, why does it has urge to reset all of the gui settings when changing an Appearance Default.
Looking at the labels it should change nothing but a gui scale, but apart with that it changes whole environment to default

#

||It's good to have a panic button that reverts everything back (when you messed with LXappearance perhaps), just it's not the job of a screen scale changer||

glass yew
faint sparrow
#

I use 'wbar' on Debian (amd64 desktop) which has a config tool to specify the exact icons it uses.

glass yew
faint sparrow
#

;) pretty sure I did run 'fluxbox' with 'wbar' on Raspbian. fluxbox the window manager. I kept 'pi' as the factory set it up and added another user with same privs, with my preferred stuff.

analog ore
robust copper
worn drift
dusk flower
glass yew
ornate bluff
#

Anyone know how to get Realtek RTL8152 working with a Pi 1 model B?

#

It plugs in and is shown on lsusb, but doesn't show up as an adapter on ifconfig

#

never mind, I just hadn't configured it as an adapter yet

swift sky
analog ore
mint pagoda
#

Got me a Pi4B -Yes!

dusk flower
fickle rose
ornate bluff
#

(I'm also working on a Pi 1 B)

civic rune
#

what's a good way to turn off a pi that I can't SSH into and also can't get the HDMI output to display anything?

vocal lava
#

wire a button to it? One of the pins defaults to power for a button

civic rune
#

doesn't that require listener code?

vocal lava
#

No

civic rune
#

how do I tell if it's turned off? Didn't think of that

#

the act light isn't flashing but there's a bit of a spark in there

vocal lava
civic rune
#

yeah I was aware of the power on functionality but it was my impression that the power off required code in the background

#

I might just pull the plug, I have everything backed up

#

ok, force reboot is risky but it seems to have paid off.

sharp patrol
#

How often does a 4b 8gb model go in stock on adafruit, is there a set time it would go in stock?

meager girder
#

my answer to that is good luck

#

I don't think it's a predictable phenomena in any way

civic rune
#

Having an issue with some really simple code/hardware

#

I have a SPST-NO button wired with one wire to D5 and one to GND. I have this code with Blinka

>>> import board, digitalio
>>> button = digitalio.DigitalInOut(board.D5)
>>> button.direction = digitalio.Direction.INPUT

then I run:

>>> button.value
>>> True

then I depress the button and run

>>> button.value
>>> True

I should be reading false.... I am really confused.

#

in fact when my circuit is wired up with the input pullup done in software, I read continuity between the pins of my button

#

anyone got any clues?

twin helm
civic rune
#

sorry, with my DMM

#

like it reads that htey are shorted

twin helm
#

resistance or continuity readings with a DMM are very difficult to interpret if there are any active or frequency-dependent components present, especially if they're powered on

civic rune
#

hmm

twin helm
#

have you confirmed with your DMM that the switch on its own is operating as you expect?

civic rune
#

well I just disconnected something that's been causing trouble in the circuit and now they don't read as connected but the code still doesn't work

#

I have

#

all powered off, it works normally

#

I lied, removing the something didn't help after all

#

This is very odd

twin helm
#

jumper (or wire a 1k resistor or so) from D5 to ground and see how that reads?

civic rune
#

1k? ok

#

does it matter that there's an internal pullup going on right now?

twin helm
#

(helps to limit the current if the pin is accidentally set to output)

#

1k should be stronger than the internal pullup

civic rune
#

button.value is still True

#

oh hey

#

guess who is a goofus

#

PIN 5 != D5

#

sigh

#

it worked!

#

ok

#

I'm not losing my mind, yet

thin pelican
#

Recommendations for a portable battery pack for pi400?

thin pelican
edgy oar
#

One of my daily affirmations, too.

civic rune
#

when using nano, shouldn't CTRL+O save your file wherever you opened the nano instance?

#

because the file I'm trying to create is not appearing in the file manager and I can't find it with sudo find

tired marsh
#

if you have the rights

civic rune
#

I mean I should?

tired marsh
#

if not, it should tell you what it's doing

civic rune
#

I used sudo nano

#

and I am a sudoer

#

it said "wrote out x lines"

#

I've done this before on this exact pi and it worked fine

#

I guess I can try not using nano and then use sudo mv

tired marsh
#

dunno, make sure you are looking the the right place 🤷

ornate bluff
#

Does anyone know of a good library for using buttons on GPIO pins? That allows for detecting combinations of buttons pressed, holding buttons, double taps, triple taps, etc?

civic rune
#

is gamepad still used?

rotund pivot
#

module deprecated in favor of keypad (gamepad module went away earlier; gamepadshift module went away in 8)

civic rune
civic rune
#

I found a guide for making an image of your pi using an USB thumb drive. I don't have one on hand but I do have a USB SD card reader + card. Workable?

lost wolf
#

Worth trying, you should know quickly if it's not going to work.

#

At least I assume if it images properly, it should allow for the image to be used successfully as well.

#

Don't bet on it until you're certain though. 😄

ember gyro
#

hello, anyone here done anything with restaurant menu boards? im wondering if i could create some sort of enclosure that would withstand houston heat outdoors.

sacred swift
#

Hello, I'm new to Raspberry PI and CircuitPython. I'm trying to utilize the Adafruit VL5L1X Flight Distance Sensor. I followed the learn page and modified the code to fit my Raspberry PI PICO RP2040, but I keep getting a Clock stretch too long error. Solders are fine, wires are all intact and connected to the correct pins, heres the code.

unknown.png
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I haven't done any locking or unlocking yet, since the error occured before and after I added the code.

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May be the wrong channel..., does this channel do code help?

lost wolf
lament swan
lost wolf
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There are issues with certain I2C devices and Raspberry Pi clock stretching. I don't know the details, I only know that it's a thing. I'm hoping someone who has dealt with it can chime in.

lament swan
sacred swift
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I've looked all over the internet and cant really find anything that makes sense, or relates to my problem. It has something to do with the i2c = busio.I2C(board.GP11, board.GP10)

lament swan
# civic rune I used `sudo nano`

Strange, I've used ctrl+S before. The commands are at the pallette at the bottom, no? Also, if you hit Ctrl+X, it should ask you if you want to save or not

sacred swift
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The function takes an extra (optional) parameter of "frequency", but even if I plug that in it still sends the same error

lost wolf
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Someone might have, and there might be a fix in the thread.

sacred swift
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I solved the issue

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I was using a resistor for the pullup that was too low of an ohmage

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Which made the signal mess up between the two boards

lost wolf
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Ooh nice! Good catch!

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Thanks for letting us know. 🙂

sacred swift
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Well...

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Now I've got another problem

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I put 29 address in since that is the default address for the Flight Sensor, but now I'm getting an address error

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But I'm not sure if this is caused by my janky resistor setup

lost wolf
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Nope.

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You need to put 0x29

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Otherwise it's converting the int 29 to hex.

sacred swift
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Bruh

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Thanks, I'm a little lost

lost wolf
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You're welcome! That's why we're here, why we started this Discord server in the first place. 🙂

sacred swift
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Is there a way to scan all devices connected to the PICO? Its still giving me the No I2C device at address: 0x29

lost wolf
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Oh you're on a Pico? Not an RPi computer?

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Either way, the answer is yes

sacred swift
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Yes RP2040

lost wolf
vocal lava
lost wolf
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Good call, Paul. I don't think you do if you're using default.

sacred swift
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If I do not pass the I2C address it gives me function parameter error

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I cant use "board" for the I2C function

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As it doesnt have the property for me, only "busio" has it

lost wolf
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LLama, is the power LED on on the ToF sensor?

sacred swift
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Yes, its on

lost wolf
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Ok, that's good. Figured I'd ask.

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Try the scan code? Except change the setup to use the Pico suggested set up line.

sacred swift
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But the Pico doesnt detect the board, so I guess my wiring isnt connected. But its odd, since if it wont run the code until I put in the correct pins, implying it knows those pins are connected to something...

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GP0 and GP1 dont work, the defaults

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I put them in the GP11 and GP10 pins

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GP11 for SDA and GP10 for SCL

lost wolf
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Not all pins work as I2C, I think. Most of them do, though. The RP2040 has bonkers capabilities on every pin.

sacred swift
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Dang

lost wolf
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But, there's a thing where you have to use pins in a certain I2C group.

sacred swift
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Okay

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I'll just put them on the expected defaults

lost wolf
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Do you have a GP24 and a GP25? They will work as SDA and SCL respectively.

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GP3 and GP2 will also work, SCL SDA in that order.

sacred swift
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Okay

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I put it in the correct pins

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It now finds the addresses

lost wolf
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Nice!

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@sacred swift FYI this channel is more about Raspberry Pi computers than it is the Pico. I didn't realise that's what you were using initially. So next time, if you have more questions, post to #help-with-circuitpython. Good luck!

robust copper
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Can I use both SERVO HAT and MOTOR HAT if I use tall headers for one of them?

unknown.png unknown.png
alpine fox
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i'm having trouble getting the https://www.adafruit.com/product/4863 cyberdeck hat and the Pimoroni HyperPixel - 4.0" Hi-Res Display https://www.adafruit.com/product/3578 to work on the raspberry pi 400

Adafruit CYBERDECK HAT for Raspberry Pi 400

Cyber-warriors, listen up here! We’ve got with some zero-day unreleased hardware we just dumpster-dived. Now you can crack kodes, and write skripts with style, thanks to the CYBERDECK ...

Pimoroni HyperPixel - 4.0" Hi-Res Display for Raspberry Pi

Pimoroni's HyperPixel features a 4.0" display with 800x480 18-bit color pixels and a capacitive touch overlay, making it more sensitive and responsive than a resistive touch ...

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i followed all the instructions but all that happens is the backlight goes on and the pi no longer displays on hdmi

fresh marsh
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could someone explain the difference between the cberdech hat an bonnet to me please?

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I am trying to figutr out how to attach a pimoroni hyperpixel 4 inch display to the pi 400

alpine fox
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hat is taller and is meant for regular raspberry pi hats, the bonnet is meant for hats used on the pi zero & zero 2

fresh marsh
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thanks that helps a lot

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I wonder why they made a cyyberdeck bonnet for the pi 400?

meager girder
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rpi 400 40 pins aren't like other pis

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and seems to be incompatible

civic rune
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Can some cheap displays not work with the pi? (3A+). I bought a cheap almost literally no name HDMI display off of Amazon and it just doesn't seem to work

umbral sable
civic rune
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I was about to test that

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I just confirmed that the pi is working with my LG display

meager girder
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man these displays seems to be a huge problem

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couple of unsolved questions about them lately

civic rune
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Oooof

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Doesn't work with my PC either

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Got some e waste on my hands

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That's frustrating

meager girder
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I meant displays generally not that specific one

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and you dont have a pi 4 do you ?

civic rune
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No I don't

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3 A+

mint pagoda
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@fresh marsh The Adafruit Cyberdeck HAT was developed to give easier access to the I/O of the Pi-400. The Alignment Key also reduces the probability that an extension cable could be installed incorrectly and get the pin alignment 180 degrees out. The Cyberdeck also provides some ready made connections (STEMMA/STEMMA QT) for adding external sensors.

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The Cyberdeck Bonnet just allows for a more Low Profile setup.

fading idol
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I have an Stemma QT SHIM for a Raspberry Pi (Product ID 4463). I am trying to connect it to a NeoPixel strip with a 3 pin JST SM connector on each end. I need to go from the Stemma QT connector to the JST SM. Is there a cable to do that or do I just need to make my own?

lost wolf
fading idol
lost wolf
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You're welcome!

upbeat oasis
tidal crest
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Hi, does anyone know how to autorun 2 python scripts (a GUI script and a server script) together. Unfortunately only the GUI file gets executed, the server file not

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(on raspi)

meager girder
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what's the fastest way to connect remotly/wirelessly to my rpi2 which is a bit unwieldy to connect on locally (touch screen would have to plug keyboards/mouses/etc) ?

twin helm
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is having only the command line OK, or do you want the GUI?

modern matrix
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on today's Pi 4, are there any back-powering issues powering the board via GPIO while connecting the USB-C port to a PC (running in peripheral/gadget mode)? I've seen fragments of discussions online about it (more for the Zero) but haven't found a real "yes it's fine" or "that's going to cause problems" or "here's the cable you need".

faint sparrow
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The GPIO is a 5V output, not an input. It's provided to power exteral devices via the GPIO bus. It's bonded directly to VBUS from the USB-C power-in connector.

faint sparrow
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I'd be more comfortable sealing off the USB-C connection if I was using the GPIO pins for 5V input, so that a second power supply cannot be also connected (via USB-C).

civic rune