Basic Pi GPIO example

gpio.py

import RPi.GPIO as GPIO
import time


# Pi has (confusingly) two numbering schemes for pins
# usually you would choose based on what is printed on
# your dongles/pinout prints
GPIO.setmode(GPIO.BCM)

# H-Bridge pins
motor_pin_A1 = 7
motor_pin_A2 = 8
motor_pin_B1 = 9
motor_pin_B2 = 10

# Set all the pins as output
GPIO.setup(motor_pin_A1, GPIO.OUT)
GPIO.setup(motor_pin_A2, GPIO.OUT)
GPIO.setup(motor_pin_B1, GPIO.OUT)
GPIO.setup(motor_pin_B2, GPIO.OUT)

# Fire up the pins!
GPIO.output(motor_pin_A1, True)
GPIO.output(motor_pin_A2, False)
GPIO.output(motor_pin_B1, True)
GPIO.output(motor_pin_B2, False)

# Wait a second
time.sleep(1)

# Stop all the pins
GPIO.output(motor_pin_A1, False)
GPIO.output(motor_pin_A2, False)
GPIO.output(motor_pin_B1, False)
GPIO.output(motor_pin_B2, False)

# Clean up
GPIO.cleanup()