Test Arduino autoDetect with blink example.

autoDet_test.py

import pyfirmata
import time
import serial.tools.list_ports

ports = list(serial.tools.list_ports.comports())

Arduino_ports = []

for p in ports:
    if 'Arduino' in p.description:
        Arduino_ports.append(p)
if len(Arduino_ports) == 0:
    print("no Arduino board detected")

if len(Arduino_ports) > 1:
    print('Multiple Arduinos found - using the first')
else:
    print("Arduino board detected")

print(Arduino_ports[0].device)

board = pyfirmata.Arduino(str(Arduino_ports[0].device))

it = pyfirmata.util.Iterator(board)
it.start()

board.digital[13].mode = pyfirmata.OUTPUT

while True:
    board.digital[13].write(1)
    time.sleep(2)
    board.digital[13].write(0)
    time.sleep(0.5)