电机转速怎么计算公式_电机转速怎么计算公式

电机转速怎么计算公式_电机转速怎么计算公式arduino+L298N驱动两相四线(五线)步进电机int Pin0 = 8;int Pin1 = 9;int Pin2 = 10;int Pin3 = 11;int _step =0 ;boolean dir; //= -1;正反转int step

arduino+L298N驱动两相四线(五线)步进电机   int Pin0 = 8; int Pin1 = 9; int Pin2 = 10; int Pin3 = 11; int _step =0 ; boolean dir; //= -1;正反转 int stepperSpeed = 20;//电机转速,1ms一步 void setup() {   pinMode(Pin0, OUTPUT);   pinMode(Pin1, OUTPUT);   pinMode(Pin2, OUTPUT);   pinMode(Pin3, OUTPUT);   pinMode(4,INPUT); }   void loop() {   if(digitalRead(4))   {    up();   }else{   down();   } }   void down()   {         switch(_step){     case 0:     //stepperSpeed++;       digitalWrite(Pin0, LOW);       digitalWrite(Pin1, LOW);       digitalWrite(Pin2, LOW);       digitalWrite(Pin3, HIGH);//32A     break;     case 1:       digitalWrite(Pin0, LOW);       digitalWrite(Pin1, HIGH);//10B       digitalWrite(Pin2, LOW);       digitalWrite(Pin3, HIGH);     break;     case 2:       digitalWrite(Pin0, LOW);       digitalWrite(Pin1, HIGH);       digitalWrite(Pin2, LOW);       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, LOW);       digitalWrite(Pin2, HIGH);       digitalWrite(Pin3, LOW);     break;     case 5:       digitalWrite(Pin0, HIGH);       digitalWrite(Pin1, LOW);       digitalWrite(Pin2, HIGH);       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;   }    _step++;     if(_step>7){    _step=0;  }     delay(stepperSpeed);   }                    void up() {       switch(_step){     case 0:     //stepperSpeed++;       digitalWrite(Pin0, HIGH);       digitalWrite(Pin1, LOW);       digitalWrite(Pin2, LOW);       digitalWrite(Pin3, LOW);//32A     break;     case 1:       digitalWrite(Pin0, HIGH);       digitalWrite(Pin1, LOW);//10B       digitalWrite(Pin2, HIGH);       digitalWrite(Pin3, LOW);     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, LOW);       digitalWrite(Pin1, HIGH);       digitalWrite(Pin2, LOW);       digitalWrite(Pin3, HIGH);     break;       case 6:       digitalWrite(Pin0, LOW);       digitalWrite(Pin1, LOW);       digitalWrite(Pin2, LOW);       digitalWrite(Pin3, HIGH);     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;   }     _step++;     if(_step>7){    _step=0;  }     delay(stepperSpeed);   }

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