This example sends the M119
(print endstop status) command to an attached 3D printer and prints the response in a loop
#!/usr/bin/env python3 import serial ser = serial.Serial("/dev/ttyACM0") try: while True: ser.write(b"M119\n") response = ser.read_until(b"ok\n") print(response.decode("utf-8")) finally: ser.close()
Example output (in a loop):
Reporting endstop status x_max: open y_max: TRIGGERED z_max: TRIGGERED ok