STEP 1 :    From the File menu select Examples / Firmata / StandardFirmata

STEP 2 : Upload the Firmware. 

ARDUINO WIRING TO AVLYTICS RELAY MODULE

print("Arduino K2 Relay Trigger !")

board.digital[10].write(0)

time.sleep(2)

board.digital[10].write(1)

print("Arduino K3 Trigger !")

board.digital[11].write(0)

time.sleep(2)

board.digital[11].write(1)

print("Arduino K4 Manual Trigger !")

board.digital[12].write(0)

time.sleep(2)

board.digital[12].write(1)