# Commands for arduino import serial import time ser = serial.Serial('/dev/ttyACM0', 9600, timeout=1) # fix ser.reset_input_buffer() def onAndOfffLed(): ser.write("ON\n".encode('utf-8')) line = ser.readline().decode('utf-8').rstrip() print(line) time.sleep(4) ser.write("OFF\n".encode('utf-8')) line = ser.readline().decode('utf-8').rstrip() print(line) time.sleep(4) if line == "You sent me: OFF": return 1 else: return 0