LED RUNNER

LED Runner
This is project that varies the speed of a running led on a PORT of a PIC16F877A microcontroller. The current running speed is determined by a potentiometer. Varying the output of the potentiometer, varies the speed of the running LED.

The source code that performs this action is bellow:
The code was written on MikroC PRO for PIC.


void my_delay(unsigned short mul){
 unsigned int i;
 for (i = 0; i< mul; i++){
  delay_ms(50);                  //baseline delay
  }
}


unsigned short mapADC(unsigned int adc_val){
  return (unsigned short)(adc_val/ 50);
}

void runner(){
 //runner code
 portb = 1;
 my_delay(mapADC(ADC_Read(0)));
 portb = 2;
 my_delay(mapADC(ADC_Read(0)));
 portb = 4;
 my_delay(mapADC(ADC_Read(0)));
 portb = 8;
 my_delay(mapADC(ADC_Read(0)));
 portb = 16;
 my_delay(mapADC(ADC_Read(0)));
 portb = 32;
 my_delay(mapADC(ADC_Read(0)));
 portb = 64;
 my_delay(mapADC(ADC_Read(0)));
 portb = 128;
 my_delay(mapADC(ADC_Read(0)));
}

void main() {
 trisb = 0;
 portb = 0;
 while(1){
  runner();
  }
}

copy the code and paste in the code editor and compile.