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不懂用arduino的stepper库,在网上找资料学习,以下是我的学习笔记---------这只是个人理解,希望有人指出不对的地方
步进机28BYJ-48的步距脚为5.626/64,就是电机要64个脉冲才转一圈,减速比1:64,就是电机要转64圈,输出的轴才转一圈,所以转一圈要64*64=2096个脉冲
下边的程序是步进机每个1秒转一圈的程序:
//定义引脚
int Pin0 = 8;
int Pin1 = 9;
int Pin2 = 10;
int Pin3 = 11;
int _step = 0;
boolean dir = false;//正反转
int stepperSpeed = 1;//电机转速,1ms一步
//脉冲总数,或者说步的总数
int stepsum=0;
void setup()
{
pinMode(Pin0, OUTPUT);
pinMode(Pin1, OUTPUT);
pinMode(Pin2, OUTPUT);
pinMode(Pin3, OUTPUT); }
void loop()
{
//进步机的驱动方式,有八种
switch(_step){
case 0:
digitalWrite(Pin0, LOW);
digitalWrite(Pin1, LOW);
digitalWrite(Pin2, LOW);
digitalWrite(Pin3, HIGH);
break;
case 1:
digitalWrite(Pin0, LOW);
digitalWrite(Pin1, LOW);
digitalWrite(Pin2, HIGH);
digitalWrite(Pin3, HIGH);
break;
case 2:
digitalWrite(Pin0, LOW);
digitalWrite(Pin1, LOW);
digitalWrite(Pin2, HIGH);
digitalWrite(Pin3, LOW);
break;
case 3:
digitalWrite(Pin0, LOW);
digitalWrite(Pin1, HIGH);
digitalWrite(Pin2, HIGH);
digitalWrite(Pin3, LOW);
break;
case 4:
digitalWrite(Pin0, LOW);
digitalWrite(Pin1, HIGH);
digitalWrite(Pin2, LOW);
digitalWrite(Pin3, LOW);
break;
case 5:
digitalWrite(Pin0, HIGH);
digitalWrite(Pin1, HIGH);
digitalWrite(Pin2, LOW);
digitalWrite(Pin3, LOW);
break;
case 6:
digitalWrite(Pin0, HIGH);
digitalWrite(Pin1, LOW);
digitalWrite(Pin2, LOW);
digitalWrite(Pin3, LOW);
break;
case 7:
digitalWrite(Pin0, HIGH);
digitalWrite(Pin1, LOW);
digitalWrite(Pin2, LOW);
digitalWrite(Pin3, HIGH);
break;
default:
digitalWrite(Pin0, LOW);
digitalWrite(Pin1, LOW);
digitalWrite(Pin2, LOW);
digitalWrite(Pin3, LOW);
break;
}
//判断是正转还是反转
if(dir)
{
_step++;
}else{
_step--;
}
//每八步一个驱动方式的循环
if(_step>7){
_step=0;
}
if(_step<0){
_step=7;
}
delay(stepperSpeed);
//计算脉冲数,每4096个脉冲停1秒
stepsum++;
if(stepsum==4096)
{
Serial.println(stepsum);
stepsum=0;
delay(1000);
}
}
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