arduino 电机控制

int point_id2 = 2;
int point_id3 = 3;
int point_id4 = 4;
int point_id5 = 5;

int point_id8 = 8;
int point_id9 = 9;
int point_id10 = 10;
int point_id11 = 11;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);

  
  pinMode(point_id4,OUTPUT);
  pinMode(point_id5,OUTPUT);

  
  digitalWrite(point_id4,LOW);
  digitalWrite(point_id5,HIGH);

  
}

void loop() {
  // put your main code here, to run repeatedly:
  if(Serial.available()){
      char r_data = Serial.read();
      //A 停止后退
      if(r_data=='A'){
        digitalWrite(point_id4,LOW);
        digitalWrite(point_id5,LOW);
      }

      //B 后退
      if(r_data=='B'){
        digitalWrite(point_id4,HIGH);
        digitalWrite(point_id5,HIGH);
      }
      
      //C 后退
      if(r_data=='C'){
        digitalWrite(point_id4,LOW);
        digitalWrite(point_id5,HIGH);
      }

      //D 后退
      if(r_data=='D'){
        digitalWrite(point_id4,HIGH);
        digitalWrite(point_id5,LOW);
      }

  }
}