ESP8266驱动五线四相步进电机

一.系统概述

使用ESP8266作为主控，驱动是ULN2003A，驱动五线四相步进电机。

（1）五相步进电机工程图

（2）驱动电路原理图

二.代码部分

#define D1 5
#define D2 4
#define D3 0
#define D4 2
#define DSD 5
void setup() {// put your setup code here, to run once:
pinMode(5,OUTPUT);
pinMode(4,OUTPUT);
pinMode(0,OUTPUT);
pinMode(2,OUTPUT);
pinMode(14,INPUT_PULLUP);
pinMode(12,INPUT_PULLUP);
}void loop() {// put your main code here, to run repeatedly:
if(digitalRead(14)!=1)
{
clockward90();
}if(digitalRead(12)!=1)
{
cclockward90();  
}
}void clockward90(){
for(int i=1;i<=128;i++)
{
delay(DSD);
phaseA();
delay(DSD);
phaseAB();
delay(DSD);
phaseB();
delay(DSD);
phaseBC();
delay(DSD);
phaseC();
delay(DSD);
phaseCD();
delay(DSD);
phaseD();
delay(DSD);
phaseDA();
}
phaseZero();
}void cclockward90(){
for(int i=1;i<=128;i++)
{
delay(DSD);
phaseDA();
delay(DSD);
phaseD();
delay(DSD);
phaseCD();
delay(DSD);
phaseC();
delay(DSD);
phaseBC();
delay(DSD);
phaseB();
delay(DSD);
phaseAB();
delay(DSD);
phaseA();
}
phaseZero();
}void phaseA(){
digitalWrite(5,HIGH);
digitalWrite(4,LOW);
digitalWrite(0,LOW);
digitalWrite(2,LOW);
}void phaseB(){
digitalWrite(5,LOW);
digitalWrite(4,HIGH);
digitalWrite(0,LOW);
digitalWrite(2,LOW);
}void phaseC(){
digitalWrite(5,LOW);
digitalWrite(4,LOW);
digitalWrite(0,HIGH);
digitalWrite(2,LOW);
}void phaseD(){
digitalWrite(5,LOW);
digitalWrite(4,LOW);
digitalWrite(0,LOW);
digitalWrite(2,HIGH);
}
void phaseAB(){
digitalWrite(5,HIGH);
digitalWrite(4,HIGH);
digitalWrite(0,LOW);
digitalWrite(2,LOW);
}void phaseBC(){
digitalWrite(5,LOW);
digitalWrite(4,HIGH);
digitalWrite(0,HIGH);
digitalWrite(2,LOW);
}void phaseCD(){
digitalWrite(5,LOW);
digitalWrite(4,LOW);
digitalWrite(0,HIGH);
digitalWrite(2,HIGH);
}void phaseDA(){
digitalWrite(5,HIGH);
digitalWrite(4,LOW);
digitalWrite(0,LOW);
digitalWrite(2,HIGH);
}void phaseZero(){
digitalWrite(5,LOW);
digitalWrite(4,LOW);
digitalWrite(0,LOW);
digitalWrite(2,LOW);
}

三.工作情况

实验情况：工作稳定，满足需要。电机很便宜，工作也很稳定。就是转的有点慢。

       每次按下按钮，步进电机顺时针/逆时针旋转90°，接下来步进电机的所有输入INT引脚打高，步进电机内部线圈此时不通过电流，来减小步进电机在待机状态下的发热。