试图让 2 个电机同时旋转 [关闭]

我试图让 2 个电机在具有以下 skecth 的电机上旋转

#define MotorSpeed 7
#define MotorDirection 6
#define MotorSpeed2 5
#define MotorDirection2 4

void setup(){

 pinMode(MotorSpeed, OUTPUT);
 pinMode(MotorDirection, OUTPUT);
 pinMode(MotorSpeed2, OUTPUT);
 pinMode(MotorDirection2, OUTPUT);

 Serial.begin(9600);         
}    


void loop() {

 for(int motorValue = 0 ; motorValue <= 255; motorValue +=10){
 analogWrite(MotorSpeed, motorValue); 
 delay(100);      
 }

 {
 analogWrite(MotorSpeed, 255);
 delay(1000);
 }

 {
 for(int motorValue = 255 ; motorValue >= 0; motorValue -=10){
 analogWrite(MotorSpeed, motorValue); 
 delay(100);      
  }
 }
}

出于某种原因，我无法弄清楚如何让 MotorDirection 和 MotorDirection2 即使 MotorSpeed 和 MotorSpeed2 同时工作