PySerial minimal request-reply example
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