In this Tutorial we are going to list all the requirements and demonstrate an example whish illustrate the full control of the Arduino board from a PC or any raspberry pi …

Preliminaries

• Install python and pip.
• Go to the Arduino IDE and transfer the Firmata code into the Arduino.

The code

This code is made for windows, in Linux you have to use /dev/ttyusb0 for example, or select the appropriate one from the list by typing: ls /dev/*

import pyfirmata
import time

board = pyfirmata.Arduino('COM7') // 'COMX' for Ports in windows 

while True:
    board.digital[13].write(1)
    time.sleep(5)
    board.digital[13].write(0)
    time.sleep(1)

This code will blink on and off the onborad LED on the arduino which is connected to the pin #13.