Not exacty sure where this code came from. Rotates a stepper motor forward 1000 steps, then back.
import RPi.GPIO as GPIO import time GPIO.setmode(GPIO.BCM) enable_pin = 18 coil_A_1_pin = 4 coil_A_2_pin = 17 coil_B_1_pin = 23 coil_B_2_pin = 24 GPIO.setup(enable_pin, GPIO.OUT) GPIO.setup(coil_A_1_pin, GPIO.OUT) GPIO.setup(coil_A_2_pin, GPIO.OUT) GPIO.setup(coil_B_1_pin, GPIO.OUT) GPIO.setup(coil_B_2_pin, GPIO.OUT) GPIO.output(enable_pin, 1) def forward(delay, steps): for i in range(0, steps): setStep(1, 0, 1, 0) time.sleep(delay) setStep(0, 1, 1, 0) time.sleep(delay) setStep(0, 1, 0, 1) time.sleep(delay) setStep(1, 0, 0, 1) time.sleep(delay) def backwards(delay, steps): for i in range(0, steps): setStep(1, 0, 0, 1) time.sleep(delay) setStep(0, 1, 0, 1) time.sleep(delay) setStep(0, 1, 1, 0) time.sleep(delay) setStep(1, 0, 1, 0) time.sleep(delay) def setStep(w1, w2, w3, w4): GPIO.output(coil_A_1_pin, w1) GPIO.output(coil_A_2_pin, w2) GPIO.output(coil_B_1_pin, w3) GPIO.output(coil_B_2_pin, w4) while True: delay = raw_input("Delay between steps (milliseconds)?") steps = raw_input("How many steps forward? ") forward(int(delay) / 1000.0, int(steps)) steps = raw_input("How many steps backwards? ") backwards(int(delay) / 1000.0, int(steps))