树莓派3B驱动步进电机28BYJ-48-5V

硬件：

1.树莓派3B
2.步进电机28BYJ-48-5V
3.ULN2003步进电机驱动板

接线

如下图

代码

import RPi.GPIO as GPIO
import time
 
delay=2 #delay 2ms
 
pin_4 = 4
pin_17 = 17
pin_23 = 23
pin_24 = 24
 
GPIO.setmode(GPIO.BCM) #设置引脚的编码方式
    
def init():
    GPIO.setwarnings(False)
    GPIO.setup(pin_4, GPIO.OUT)
    GPIO.setup(pin_17, GPIO.OUT)
    GPIO.setup(pin_23, GPIO.OUT)
    GPIO.setup(pin_24, GPIO.OUT)
 
 
def forward(delay):  
    setStep(1, 0, 0, 0)
    time.sleep(delay)
    setStep(0, 1, 0, 0)
    time.sleep(delay)
    setStep(0, 0, 1, 0)
    time.sleep(delay)
    setStep(0, 0, 0, 1)
    time.sleep(delay)
 
def setStep(w1, w2, w3, w4):
  GPIO.output(pin_4, w1)
  GPIO.output(pin_17, w2)
  GPIO.output(pin_23, w3)
  GPIO.output(pin_24, w4)
  
def main():
    init() 
    while True:
        forward(int(delay) / 1000.0)
         
main() # 调用main

以上一切技术来自网络，感谢前辈们的技术分享。代码来自这里

ps：