Arduino 代碼同影片：L293D 直流摩打控制器（冇速度控制）

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/*
 * This is the Arduino code L293 DC motor driver (Advanced).
 Using this code you can control a motor to rotate in both directions: clockwise (CW) 
 and counter-clockwise (CCW).

 *  * 
 // Written by Ahmad S. for Robojax.com on 
// February 25, 2018 at 18:30 in Ajax, Ontario, Canada
 * Permission granted to share this code given that this
 * note is kept with the code.
 * Disclaimer: this code is "AS IS" and for educational purposes only.
 * 

 * watch L293 video for details https://youtu.be/jAmDliHcTJ0
 * Code is available at http://robojax.com/learn/arduino

 * 

*/
// DC motor 1 control
#define P1A 2 // define pin 2 as for P1A
#define P2A 7 // define pin 7 as for P2A
#define EN12 8 // define pin 8 as for 1,2EN enable



// DC motor 2 control 
#define P3A 10 // define pin 10 as for P3A
#define P4A 13 // define pin 13 as for P4A
#define EN34 9 // define pin 9 as for EN3 and EN4 enable

/*
 * Permission granted to share this code given that this
 * note is kept with the code.
 * Disclaimer: this code is "AS IS" and for educational purposes only.
 * 
 */

void setup() {
  // L293 Motor Control Code by Robojax.com 2018025
  Serial.begin(9600);// setup Serial Monitor to display information
  pinMode(P1A, OUTPUT);// define pin as OUTPUT for P1A
  pinMode(P2A, OUTPUT);// define pin as OUTPUT for P2A
  pinMode(EN12, OUTPUT);// define pin as OUTPUT for 1,2EN
   
  pinMode(P3A, OUTPUT);// define pin as OUTPUT for P3A
  pinMode(P4A, OUTPUT);// define pin as OUTPUT for P4A
  pinMode(EN34, OUTPUT);// define pin as OUTPUT for 3,4EN   
  // L293 Motor Control Code by Robojax.com 2018025   
}

void loop() {
  // L293 Motor Control Code by Robojax.com 2018025


    Serial.println("Rotating CW");
    digitalWrite(EN12 ,HIGH);// Enable 1A and 2A 
    digitalWrite(P1A,HIGH);// send + or HIGH signal to P1A
    digitalWrite(P2A,LOW);// send - or LOW signal to P2A       
    delay(3000);// motor runs for 3 seconds
    digitalWrite(EN12 ,LOW);// Disable 1A and 2A
    delay(2000);// motor stop for 3 seconds 
    Serial.println("Motor Stopped"); 

  // L293 Motor Control Code by Robojax.com 2018025
    // now changing the direction of rotation of motor
    Serial.println("Rotating CCW");
    digitalWrite(EN12 ,HIGH);// Enable 1A and 2A     
    digitalWrite(P1A,LOW);// send + or HIGH signal to P1A
    digitalWrite(P2A,HIGH);// send - or LOW signal to P2A  
    delay(3000);// motor runs for 3 seconds
    digitalWrite(EN12 ,LOW);// Disable 1A and 2A
    delay(2000);// motor stop for 3 seconds    
    Serial.println("Motor Stopped");   
     

  Serial.println("=========== Loop done"); 
  delay(500);
  // L293 Motor Control Code by Robojax.com 2018025 
}

/*


 * This is the Arduino code L293 DC motor driver (Advanced).
Using this code you can control a motor to rotate in both directions: clockwise (CW) 
and counter-clockwise (CCW).

 *  * 
 // Written by Ahmad S. for Robojax.com on 
// February 25, 2018 at 18:30 in Ajax, Ontario, Canada
 * Permission granted to share this code given that this
 * note is kept with the code.
 * Disclaimer: this code is "AS IS" and for educational purposes only.
 * 

* Watch L293 video for details: https://youtu.be/jAmDliHcTJ0
 * Code is available at: http://robojax.com/learn/arduino

 * 

*/
// DC motor 1 control
#define P1A 2 // define pin 2 as for P1A
#define P2A 7 // define pin 7 as for P2A
#define EN12 8 // define pin 8 as for 1,2EN enable


// DC motor 2 control 
#define P3A 10 // define pin 10 as for P3A
#define P4A 13 // define pin 13 as for P4A
#define EN34 9 // define pin 9 as for EN3 and EN4 enable

/*
 * Permission granted to share this code given that this
 * note is kept with the code.
 * Disclaimer: this code is "AS IS" and for educational purposes only.
 * 
 */

void setup() {
  // L293 Motor Contro Code by Robojax.com 2018025
  Serial.begin(9600);// setup Serial Monitor to display information
  pinMode(P1A, OUTPUT);// define pin as OUTPUT for P1A
  pinMode(P2A, OUTPUT);// define pin as OUTPUT for P2A
  pinMode(EN12, OUTPUT);// define pin as OUTPUT for 1,2EN
   
  pinMode(P3A, OUTPUT);// define pin as OUTPUT for P3A
  pinMode(P4A, OUTPUT);// define pin as OUTPUT for P4A
  pinMode(EN34, OUTPUT);// define pin as OUTPUT for 3,4EN 

  // L293 Motor Contro Code by Robojax.com 2018025   
}

void loop() {

 if(value == 45){
  rotateMA("CW",HIGH); // start motor in CW
 }
  delay(3000); 
  rotateMA("CW",LOW); // stop motor
  delay(2000);

  rotateMA("CCW",HIGH); // start motor in CCW
  delay(3000); 
  rotateMA("CW",LOW); /// stop motor
  delay(2000);  
  
  // L293 Motor Contro Code by Robojax.com 2018025 
}// loop ends


/**
 * function: rotateMA(String di,int action)
 * Sends power to motor A
 * di is a string and can be "CW" or "CCW"
 * to use: 
 * rotateMA("CW",HIGH);// to rotate motor  CW
 * rotateMA("CCW",HIGH);// to rotate motor CCW
 *  to stop the motor:
 * rotateMA("CW",LOW);// to stop motor 
 */
void rotateMA(String di,int endis)
{
    // L293 Motor Contro Code by Robojax.com 2018025
 if(di =="CW"){
    Serial.println(" Rotating CW");
    digitalWrite(EN12 ,endis);// Enable 1A and 2A 
    digitalWrite(P1A,HIGH);// send + or HIGH signal to P1A
    digitalWrite(P2A,LOW);// send - or LOW signal to P2A       
  

 }else{
  // L293 Motor Contro Code by Robojax.com 2018025
    // now changing the direction of rotation of motor
    Serial.println(" Rotating CCW");
    digitalWrite(EN12 ,endis);// Enable 1A and 2A  
    digitalWrite(P1A,LOW);// send + or HIGH signal to P1A
    digitalWrite(P2A,HIGH);// send - or LOW signal to P2A  

 }   
   // L293 Motor Contro Code by Robojax.com 2018025
}//rotateMA ends here