spin_forrest.py

import RPi.GPIO as GPIO
import time

# for 1st Motor on ENA
ENA1 = 37
IN1 = 33
IN2 = 35

# motor 2
ENA2 = 19
IN3 = 21
IN4 = 23

# set pin numbers to the board's
GPIO.setmode(GPIO.BOARD)


# initialize EnA2, In3 and In4
GPIO.setup(ENA2, GPIO.OUT, initial=GPIO.LOW)
GPIO.setup(IN3, GPIO.OUT, initial=GPIO.LOW)
GPIO.setup(IN4, GPIO.OUT, initial=GPIO.LOW)

# initialize EnA1, In1 and In2
GPIO.setup(ENA1, GPIO.OUT, initial=GPIO.LOW)
GPIO.setup(IN1, GPIO.OUT, initial=GPIO.LOW)
GPIO.setup(IN2, GPIO.OUT, initial=GPIO.LOW)


print('\nStart 1')
GPIO.output(ENA1, GPIO.HIGH)
GPIO.output(ENA2, GPIO.HIGH)
GPIO.output(IN3, GPIO.LOW)
GPIO.output(IN4, GPIO.LOW)
GPIO.output(IN1, GPIO.LOW)
GPIO.output(IN2, GPIO.LOW)
time.sleep(1)

print('\nForward')
GPIO.output(IN1, GPIO.HIGH)
GPIO.output(IN2, GPIO.LOW)
GPIO.output(IN3, GPIO.HIGH)
GPIO.output(IN4, GPIO.LOW)
time.sleep(3)


print('\nTurn')
GPIO.output(IN1, GPIO.HIGH)
GPIO.output(IN2, GPIO.LOW)
GPIO.output(IN3, GPIO.LOW)
GPIO.output(IN4, GPIO.HIGH)
time.sleep(8/3+2/3)

print('\nForward')
GPIO.output(IN1, GPIO.HIGH)
GPIO.output(IN2, GPIO.LOW)
GPIO.output(IN3, GPIO.HIGH)
GPIO.output(IN4, GPIO.LOW)
time.sleep(3)


print('\nStop')
GPIO.output(IN1, GPIO.LOW)
GPIO.output(IN2, GPIO.LOW)
GPIO.output(IN3, GPIO.LOW)
GPIO.output(IN4, GPIO.LOW)
time.sleep(1)

GPIO.cleanup()