microcontrollers

[soft marten]

Hi can some tell me way so i can wait with for output that comes out in after couples of lines

Basically after i write my certificate to the board i want to wait to wait for 'OK' to show up which sometimes comes after couples of lines and has passed and sometime come in the next line

And it always comes at the starting of the string

[rocky canopy]

Hi, is there any way to run micropython on windows? or mock a device? I'm looking to create a micropython project that uses a screen and some buttons, but wish to share that code with a windows application also (data synced across cloud).

Basically is there a way I can do micropython development on a windows device for testing before I actually hook up the hardware?

[soft marten]

python printed: AT+CGREG=?

python printed: +CGREG: (0,1,2)

python printed:

python printed: OK```

how can i chk if ok comes in first five lines of the output @opal lodge

if 'OK' in response:
    value = response.split(':")[1]
    print response```
cant i do this

[opal lodge]

i would do a bit more checking than that to not get any false positives

[soft marten]

okk

i just need to chk frist five if there is ok in it

thanks

[opal lodge]

do you know if "OK" will be on it's own line without any other characters other then the newline character(s) after it?

[soft marten]

it will basically be in terminal

as output

i am wanna chk the resposne of command

which show show OK as output in like first 5-7 lines or show error

than process was failed

[opal lodge]

looking at this now: https://infocenter.nordicsemi.com/topic/ref_at_commands/REF/at_commands/at_syntax_response.html

[soft marten]

basically it is the command

but i need to chk first five lines if it contains ok or what if give error

[opal lodge]

i think i'd implement the whole thing like this: https://paste.pythondiscord.com/ovenayuwav.py (new version)

[soft marten]

@opal lodge

how can i resolve thiis

mkdir shows error if folder already exist

i want to hide or you can say supress it

[opal lodge]

i think this is quite off-topic for this channel and i'm really not the right person as i've been a full time linux user for many years
i also don't like microsoft and their products very much (vs code might be an exception) and really loafhe powershell
but if it's anything like unix/linux i would say add a -f on the command line to "force" it

[soft marten]

thanks dude for the help

i actually soved it using -p

[opal lodge]

@soft marten have you tried this script yet?

[soft marten]

i cant my board is burnt

so i am making changes to the script for now

is there a way to get user variables

????

[opal lodge]

wow, sad to hear
how did that happen?

[soft marten]

i dont know actually

lol

someelse took it

[opal lodge]

how do you mean, on the command line or what kind of interaction are you thinking of?

[soft marten]

yup

command line

i want to get user python

[opal lodge]

like parameters?

[soft marten]

i want to get user python envirmennt variable

this ones

@opal lodge

[opal lodge]

oh, environment variables, not command line parameters/arguments ✅
probably off-topic as well, but check out https://docs.python.org/3/library/os.html#os.environ

import os
print(os.environ['PATH'])
print(os.environ['HOME'])
for key, value in os.environ.items():
    print(f"{key}: {value}")

[soft marten]

i am trying to pass dynamic address to my script

string output is same

but still it shows in no such file exist

@opal lodge

[soft marten]

        lines = []
        response = ""
        while True:
            response += self._serial.readline().decode("utf-8")
            if response.endswith(("\r", "\n", "\r\n")):
                response = response.strip()
                lines.append(response)
                if response == "OK":
                    return lines
                if self.error_response.match(response):
                    raise AtCommandError(lines)
                response = ""
            time.sleep(0.1)

dude in your code how mnay lines are you reading

if you dont get ok what will you do

@opal lodge

[opal lodge]

i am counting on always getting at least one line with "OK" and bail out or one of the three error patterns documented on their site: https://infocenter.nordicsemi.com/topic/ref_at_commands/REF/at_commands/at_syntax_response.html
i skipped implementing a hard timeout but can be implemented as well if needed, was just doing something quick

according to their documentation it seems like one can count on always getting one of those four responses eventually

i noticed it was necessary to implement a buffer in the software because of the timeout set to the serial library or else a line could be cut somewhere in between and it wouldn't match anything, hence how some of it is implemented

i also built you two functions to read a file from disk in a slightly better way as well as being able to remove crap before and after in the file and only extract the certificate, private key or whatever else that is pem encoded, it should follow all the rules of the pem specification to be versatile

i also built a little example for how you could get the imei number from the device if you're want to read it from the device, just need to process the output a bit

[soft marten]

i am on the end part of it

i love your read device script

[opal lodge]

otherwise the class and the two functions should be ready to use as they are and you can build upon it

[soft marten]

how can i implement a function getresponse()

to chk first reponse for first 5 times

i was actually tthinking to implement while loop

for 5 times

[thin wyvern]

Hello, i currently have a raspberry pi pico witha laser wired in to the uart pins and i need to write a byte array to the laser to tell it to turn on anyone have an idea on how i would do this?

[opal lodge]

have you checked their documentation? https://docs.micropython.org/en/latest/rp2/quickref.html#uart-serial-bus

[opal lodge]

we can surely modify the code a bit to do that as well as an option
maybe even take the time to add proper timeouts to it as well as another option

[soft marten]

I did some changes

But for the exact code i need some more refrence

😅😅

[opal lodge]

ah, i think we could just patch it in so that it's an option to just add functionality to it

[soft marten]

The problem is when the code will not run

Due to errors

Or gives ouput with delay

Lets say it gives output after 4 sec

Than there could issue of buffer

[opal lodge]

not with the code that was there originally, that would only get problems if they didn't follow their own specifications or something really bad happens like if it dies or gets disconnected

[hallow igloo]

guys is microsd card required for raspberry pi?

or can i just boot it using a pendrive?

?

[somber plaza]

is there a way to pass info from python script directly to ardunio

arduino program*

so like select options in python gui and pass that to the C program

and when arduino ide compiles it it has access to the stuff from the python script

[wary musk]

no, you need it, the microsd card is like the ssd of the raspberry

[opal lodge]

with a raspberry pi 4 (and 400) with modern firmware you can boot from either usb or network (pxe) without a microsd card
this is possible now because the raspberry pi 4 (and 400) has a larger onboard firmware that you can even update

[opal lodge]

not so, not with the raspberry pi 4 and 400, see above

[errant wigeon]

The pinned post in this channel goes in more depth, but the answer is that something similar can be done, but you'll probably want to just have the python program send commands via serial to the arduino. There's also PyFirmata https://github.com/tino/pyFirmata which might help you do it

[hallow igloo]

Ohh ok

Thank you @opal lodge

[reef onyx]

yo im trying to get into raspberry pi, and i was wondering if u guys know how i can use my laptop display to control the raspberry pi. my goal is to make a simple program with the gpio turning an led on and off

[keen cairn]

You can try follow this instruction https://www.youtube.com/watch?v=NWBmYnNvN3A

[opal lodge]

you could setup your raspberry pi in headless mode and just ssh and vnc into it
you might also need an extra monitor or tv with hdmi input and a keyboard that you can connect to the raspberry if you need to troubleshoot bootup issues
if that isn't available to you, a ttl-to-usb cable can be used if the needed GPIO pins aren't occupied by a hat or something else
if you only need to use the laptop screen as a monitor for the raspberry pi you could get a hdmi-to-usb capture card (not to be confused with a usb-to-htmi display adapter) but this only gets you half way as in itself it don't give you a keyboard for the raspberry pi

[fluid gull]

Anyone here using a Raspberry Pi Pico? What's your use-case for it?

[analog locust]

hello every i am a student in 10th grade and i have a competition in which i am making an AI that moves. so here is my problem i have done lots of researches but i didn't find anything to help me, i am trying to control my Arduino code with python so i can make it a fully independent but i have very little experience with Arduino and i see it hard i don't really know but please if anyone can help me just text me thanks (i know i might be asking this question in the wrong place but please just help me).

ping me please

[silk smelt]

anyone know a dead simple way to push code on RPI 2020

without ide

[silk smelt]

pico people in the house?

[tired schooner]

Github

Where you use a githook whenever something is committed, it updates

I’m looking for a wireless button on batteries to toggle my lights. I’ve used a bluetooth remote button before, but this sucks since: to save energy, it disconnects regularly. So I’m looking for a cheap alternative which has the same functionality as you would with a garage door… ( this wouldn’t have to connect / pair anymore like it previously would with the Bluetooth shutter) I have a RPI Zero W. Any recommendations on what CHEAP receiver / transmitter to get?

[hallow igloo]

Would someone kindly be able to help me with micropython?

[errant wigeon]

what do you need help with?

[hallow igloo]

So I installed Micropython on my esp8266 and it seems to work fine. I can see the Micropython wifi running well, and I was able to connect with the default password, but I can't connect to serial at all. I erased data, and the serial gets detected. However, when I flash the.bin file, Micropython seems to be running fine because the wifi there is Micropython, and I can't get serial connection until I get the esp on boot mode.

The serial doesn't get detected at all

Let me show you my screen

[hallow igloo]

Hey do not be concerned I see I need to connnect usb through the gpio pins

[tribal latch]

Hey, does a time.sleep() really help avoid hogging cpu load? I have an RX loop on an RPi that needs to read messages as fast as possible during some stages, and was wondering if adding in a variable sleep factor would be worth considering instead of just removing the sleep completely

I think the rx reads using pyserial in some manner

[hallow igloo]

How do you transfer files to ESP32 devices when the micropython functions deepsleep/lightsleep block any connection?

[humble kraken]

it has to be woken up first

[agile shard]

Hello my amigos, i have an arduino uno and a DHT11 module, im trying to use pyfirmata with it but im not sure how since i know with arduinos ide, you have to use a library for it to work, anyone know how to do it?

[fleet pivot]

yo, lol i wanna buy a raspberry pi Zero..... Where do i buy it? Its out of stock everywhere.

even the official sellers of raspberry bi don't have it.

[past fossil]

Is this an appropriate channel to discuss the M5Stack and coding with Python on UIFlow?

[hallow igloo]

Is it perhaps possible to to reprogram this microprocessor of this broken china cell phone though this pins.

This is a china fitness watch

[hallow igloo]

I found the data sheet of this http://wiki.phyplusinc.com/doc/DataSheet/PHY6202_BLE_SoC_Datasheet_v1.4.pdf

I it possible to proggram this with another microprocessor like esp32

or arduino r3

[steep dune]

BORGize it!!!!

[humble kraken]

yes you can use any of those as a make shit serial programmer, if you know the programming protocol

[humble kraken]

sounds pretty appropriate

[hallow igloo]

http://wiki.phyplusinc.com/doc/DataSheet/PHY6202_BLE_SoC_Datasheet_v1.4.pdf

What about arm?

[humble kraken]

you'll have to keep radar out for restocks.... all new raspberry pi stock of stuff gets sold out almost as it comes up

[hallow igloo]

How can one board a preproggramed baord

[hallow igloo]

This has this cpu

PHY6202

[analog locust]

hello dose anyone know a microcontroller that can run python with a microphone and speaker and wifi

[spiral sandal]

not at the same time, or it would be called a SOC (system on chip)

[analog locust]

@spiral sandal okay which one do you recommend me to buy

[spiral sandal]

if you look for cheap soc wih no special gpu caps then look for lichee-pi or raspi zero

[analog locust]

can i connect wifi module to it

and a speaker

and a micrphone

[spiral sandal]

there are models with amps and microphone and wifi just search with caution

[analog locust]

ok

[spiral sandal]

don't go for lowest prices they could be amputated ( at least for lichee pi D1 they have audio/wifi caps on docks )

[spiral sandal]

but are you sure you want to handle all that at once with (micro/circuit)python ? it could be simpler to use CPython on a fullly equiped dev board

[analog locust]

i already finished the code

it is working

can you help me

i will explain everything

[analog locust]

raspi zero isnt cheap

[spiral sandal]

glad you found out that yourself

i'm biased toward allwinner soc so i try not to impose my views

[analog locust]

ok

[analog locust]

LicheePi is going to be impossible to find in egypt

[spiral sandal]

you don't have aliexpress or a broker ? maybe make a collective with other people and get a qty

[analog locust]

ok

i will see

thanks

[gentle vapor]

ESP32 family chips have I2S (digital audio) and analog input/output, and wifi, and exist in modules with plenty of ram for a mcu. There are definitely full boards out there with audio in and out

I wish I could point to an Adafruit board for the example but the boards they put mics on don't have wifi it seems, it's not hard to add an external mic though (well harder than you would on a PC)

[flat latch]

If I want a Python script that controls LEDs to run forever on a pi, what’s the best way of running the file?

[analog locust]

thanks

i think i will buy it

[elder knot]

Might not be the right place to ask, but does anyone know of a place where I can find a dockerfile which replicates the jetpack 4.6.1 release? ie, has OpenCV 4.1.1, python 3.6.9, etc.

Specifically looking to make a docker container on an nvidia Jetson Nano with GPU accelerated stuff. I've looked around for a very long time now but I'm starting to think I'll need to make some sort of amalgam dockerfile for what we need and I'm not sure what the steps I need to take in a dockerfile are to install opencv with gpu acceleration and gstreamer support (Please @elder knot if you respond btw :))

[karmic depot]

@elder knot I can help u with making the dockerfile and making the container image

[karmic depot]

Run the Python script from inside /etc/rc.local and have some kind of infinite loop in your script.

[flat latch]

Will that still work if it takes input from a text file that changes every few minutes?

[karmic depot]

Can u explain a bit more

[flat latch]

Basically Im gonna have a text file that represents the total server load that updates ever 5ish minutes and the Python program is gonna do some things with leds based on that number

Wasn’t sure if I needed to turn the Python program into a background process or something similar to let the text file update

And also I don’t know the method of how the text file gets changed, my sys admin said he would take care of that as long as I write the program

[karmic depot]

ok so means your program will read some numeric value from that text file and update the LEDs. right??

[flat latch]

Correct

[karmic depot]

have you made the program?

how are u reading the value?

[flat latch]

Have not made the program yet, was gonna use the built-in file reading functions, open() and read()

[karmic depot]

Ok

[flat latch]

Some reason it was taking a long time to install libraries yesterday and my workday ended before it was done installing

The actual program should be pretty simple, my sys admin asked me to control an led strip which is kinda of like a “progress bar” style thing which represents the total server load to be able to get a quick visual of the load without having to view anything

[karmic depot]

if u can give me sample of how the text file looks

i can help

[flat latch]

It’s just a single number

In a scale of 0-100

[karmic depot]

ok

then its pretty easy to do

[flat latch]

Yeah I was just wondering the logistics of actually “deploying” the program

[karmic depot]

The program will start at boot time, if u run it from /etc/rc.local as a background process and your text file should also be present during boot time

otherwise u need to run the script after boot

[flat latch]

Would probably be better to run on boot

[karmic depot]

is your file present at boot time?

[flat latch]

This program is the sole purpose of the raspberry po

Yes it should be

[karmic depot]

try that

or u could use a dummy file with the same name

in same path

[fluid gull]

would there be any point in the next Raspberry Pi Pico being slightly more tolerant to running actual operating systems on it? Like Fuzix but with real memory management

and > 15 processes

I'm just asking because I'm curious; no agenda here.

and say > 256k of RAM or however little amount it currently has

• for the same price as current Picos

[rain basalt]

anyone here tried compile micropython for m5stack?

successful build but firmware is not working, i get no prompt on serial

[elder knot]

I apologize for not responding yesterday! I'm a student and I ended up having a professor help me out. We figured it out, thank you for your offer though :)

[karmic depot]

✅✅

[trail inlet]

Hey. Were you able to solve this problem?

Did anyone attempt to use pypi package to control lego mindstorms?

[steep dune]

thats a good idea , any one here have a LEGO mindstorm to test

[rancid silo]

Is there a way to communicate to a arduino using iPhone?

[trail inlet]

i do

[undone dust]

Hi Thelilbigbag, you can put a HTTP server on the Arduino that you can then open via Safari

[spiral sandal]

soundmodem too

[rancid silo]

Ok but is there a way where I can upload code to a arduino from a iPhone?