Why I am unable to read some bytes in python from arduino?

[J-M-L]

There is a very simple code you can build from here

Python is not reading the information from Arduino

Try something simple first: Arduino code: void setup() { Serial.begin(115200); Serial.println("Arduino boot"); } void loop() { Serial.println("s"); delay(1000); } Python Code: #!/usr/bin/env python3 import serial import time arduino = serial.Serial(port='COM3', baudrate=115200, timeout=.1) def arduinoRead(): data = arduino.readline() return data while True: value = arduinoRead() if value != b'': print(value) of course make sure COM3 is where you arduino is …

More advanced stuff here

Hello I am not able to send a binary signal like from python to Arduino

Seems you don't get what is a function in Python... here is a simple code to try things out: Python: #!/usr/bin/python3 # ============================================ # KEEP THIS INFORMATION IF YOU USE THIS CODE # # code is placed under the MIT license # Copyright (c) 2022 J-M-L For the Arduino Forum # https://forum.arduino.cc/t/hello-i-am-not-able-to-send-a-binary-signal-like-from-python-to-arduino/954479/50 # # Permission is hereby granted, free of charge, to any person obtaining a cop…

And more here

($100 paid request) Serial/SafeString/Digital Read/Write bug is ruining my life

Let me see if some of my existing code could help. If I understood you well your drive actions from an Arduino Mega the Arduino Mega can receive text commands on a Serial Port coming from a python script each command is ACK-ed or NACK-ed before the next command is sent your command format is COMMAND:NUMBER followed by a new line \n if so, I've the following template code that could be of interest The MEGA is connected to the computer through USB, Serial is used for Debug statements The P…