from time import sleep import serial INPUT_PORT = '/dev/ttyUSB1' OUTPUT_PORT = '/dev/ttyUSB0' serialInput = serial.Serial(INPUT_PORT, 115200, timeout=1) serialOutput = serial.Serial(OUTPUT_PORT, 115200, timeout=1) def lees(): while True: line = serialInput.readline() print(line) def verzend(telegram): serialOutput.write(telegram.__str__().encode('ascii')) print(telegram) sleep(1) def doorstroom(): line = serialInput.readline() serialOutput.write(line) print(line)