Arduino和L298N控制步进电机

Arduino和L298N控制步进电机看了别人的程序，却不能让步进电机正常运转，经过查找原因，发现是接线问题，根据两相四线步进电机的四拍工作方式，其各相通电顺序为:(A－AB－B－BA’－A’－A’B’-B’－B’A)。接线方式别的资料都有，可以去找，我是分别接到8、9（一相），10、11（另一相），这样程序需要进行适当修改。当然，我仅仅是为了测试步进电机好坏，可以看到速度的变化。如果实际运行，还要完善程序。程序中（digitalWrite(Pin2,LOW);digitalWrite(Pin3,HIGH);）定义为A；（digitalWrite(Pin0,LOW);digitalWrite(Pin1,HIGH);）定义为B，A’和B’相反就可以。程序如下（程序修改于网上找到的程序）：intPin0=8;intPin1=9;intPin2=10;intPin3=11;int_step=0;booleandir=false;//正反转intstepperSpeed=1;//电机转速,1ms一步voidsetup(){pinMode(Pin0,OUTPUT);pinMode(Pin1,OUTPUT);pinMode(Pin2,OUTPUT);pinMode(Pin3,OUTPUT);}voidloop(){switch(_step){case0:stepperSpeed++;digitalWrite(Pin0,LOW);digitalWrite(Pin1,LOW);digitalWrite(Pin2,LOW);digitalWrite(Pin3,HIGH);//32Abreak;case1:digitalWrite(Pin0,LOW);digitalWrite(Pin1,HIGH);//10BdigitalWrite(Pin2,LOW);digitalWrite(Pin3,HIGH);break;case2:digitalWrite(Pin0,LOW);digitalWrite(Pin1,HIGH);digitalWrite(Pin2,LOW);digitalWrite(Pin3,LOW);break;case3:digitalWrite(Pin0,LOW);digitalWrite(Pin1,HIGH);digitalWrite(Pin2,HIGH);digitalWrite(Pin3,LOW);break;case4:digitalWrite(Pin0,LOW);digitalWrite(Pin1,LOW);digitalWrite(Pin2,HIGH);digitalWrite(Pin3,LOW);break;case5:digitalWrite(Pin0,HIGH);digitalWrite(Pin1,LOW);digitalWrite(Pin2,HIGH);digitalWrite(Pin3,LOW);break;case6:digitalWrite(Pin0,HIGH);digitalWrite(Pin1,LOW);digitalWrite(Pin2,LOW);digitalWrite(Pin3,LOW);break;case7: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;}if(dir){_step++;}else{_step--;}if(_step7){_step=0;}if(_step0){_step=7;}delay(stepperSpeed);}