Help?How to use the infrared remote control motor work?

Projects Programming
1

Hello Everybody , I use the NEC announce infrared remote control intelligent vehicles, a serial port is normal, but the motor won't work, the following is my code, bother everybody to help see, where wrong, thank you!

#define LED_RED  7
#define IR_IN     8
int Pulse_Width=0;
int ir_code=0x00;
 uint8_t i;
#include <AFMotor.h>

AF_DCMotor motor1(1,MOTOR12_64KHZ);
AF_DCMotor motor2(4,MOTOR12_64KHZ);
AF_DCMotor motor3(3,MOTOR12_64KHZ);
AF_DCMotor motor4(2,MOTOR12_64KHZ);

void timer1_init(void)
{
  TCCR1A=0X00;
  TCCR1B=0X05;
  TCCR1C=0X00;
  TCNT1=0X00;
  TIMSK1=0X00;
}


void remote_deal(void)
{
  switch(ir_code)
  {
    case 0xff00:
    
     Serial.print("tick");
  
  motor1.run(FORWARD);
  motor2.run(FORWARD);
    motor3.run(FORWARD);
  motor4.run(FORWARD);
 i=255;
    motor1.setSpeed(i);  
    motor2.setSpeed(i);
     motor3.setSpeed(i);  
    motor4.setSpeed(i);
      break;
    case 0xfe01:
      
     Serial.print("tock");

  motor1.run(BACKWARD);
  motor2.run(BACKWARD);
   motor3.run(FORWARD);
  motor4.run(FORWARD);

  i=255; 
    motor1.setSpeed(i);  
    motor2.setSpeed(i);
        motor3.setSpeed(i);  
    motor4.setSpeed(i);
    delay(3000);

     break;
   }
}
char logic_value()
{
  while(!(digitalRead(8)));
  Pulse_Width=TCNT1;
  TCNT1=0;
  if(Pulse_Width>=7&&Pulse_Width<=10)
  {
    while(digitalRead(8));
    Pulse_Width=TCNT1;
    TCNT1=0;
    if(Pulse_Width>=7&&Pulse_Width<=10)
      return 0;
    else if(Pulse_Width>25&&Pulse_Width<=27)
      return 1;
   }
   return -1;
}

void pulse_deal()
{
  int i;
  for(i=0;i<8;i++)
  {
    if(logic_value()!=0)
          return;
   }
   for(i=0;i<6;i++)
   {
     if(logic_value()!=1)
          return;
    }      
     if(logic_value()!=0)
          return;
     if(logic_value()!=1)
          return;
  ir_code=0x00;
   for(i=0;i<16;i++)
   {
      if(logic_value()==1)
      {
       ir_code|=(1<<i);
      }
    }
}

void remote_decode(void)
{
  TCNT1=0X00;
  while(digitalRead(8))
  {
  if(TCNT1>=1563)
  {
    ir_code=0xff00;
    return;
   }
}
   
   TCNT1=0X00;
   
   while(!(digitalRead(8)));
   Pulse_Width=TCNT1;
   TCNT1=0;
   if(Pulse_Width>=140&&Pulse_Width<=141)
   {
     while(digitalRead(8));
     Pulse_Width=TCNT1;
     TCNT1=0;
     if(Pulse_Width>=68&&Pulse_Width<=72)
      {
        pulse_deal();
        return;
       }
       else if(Pulse_Width>=34&&Pulse_Width<=36)
       {
         while(!(digitalRead(8)));
         Pulse_Width=TCNT1;
         TCNT1=0;
         if(Pulse_Width>=7&&Pulse_Width<=10)
         {
           return;
           }
          }
         }
    }
    void setup()
    {
      Serial.begin(9600);           // set up Serial library at 9600 bps
  Serial.println("Motor test!");

  // turn on motor
  motor1.setSpeed(255);
 motor2.setSpeed(255);
   motor3.setSpeed(255);
 motor4.setSpeed(255);
  motor1.run(RELEASE);
   motor2.run(RELEASE);
     motor3.run(RELEASE);
   motor4.run(RELEASE);
      unsigned char i;
      pinMode(LED_RED,OUTPUT);
      pinMode(IR_IN,INPUT);
      }


    void loop()
        {
      timer1_init();
      while(1)
      {
        remote_decode();
        remote_deal();
        }
     }

:slight_smile:

2

Perhaps you should separate the reading of the remote control from the control of the motors.

Write another sketch to verify that the motors/motor controller/wiring/batteries/etc. are all good.

When that works, then write another sketch that simply reads the data from the remote control, and echo the stuff read to the serial monitor.

When both sketches work, you can think about combining them.