This code uses the GPIO library and toggles the state of pin 12. The LED connected to pin 12 will turn on and off every second. Example 2: Toggle servo motor using Pyfirmata librarypython from pyfirmata import Arduino, util import time board = Arduino('/dev/ttyACM0') //connect to arduino board servo_pin = board.get_pin('d:9:s') //assign pin 9 as servo motor #Toggle pin state while True: servo_pin.write(0) //write 0 degree time.sleep(1) servo_pin.write(90) //write 90 degree time.sleep(1) ``` This code uses the Pyfirmata library to toggle the state of a servo motor connected to pin 9 on an Arduino board. The servo motor will move back and forth between 0 and 90 degrees every second. In conclusion, the Python machine Pin toggle function allows you to control the state of pins on a machine. Depending on the machine and hardware, there are different package libraries that provide the Pin toggle function. Examples shown above use GPIO and Pyfirmata libraries for Raspberry Pi and Arduino boards respectively.