Program not working, I don't know what problem....

Forum 2005-2010 (read only) Software Syntax & Programs
1

I have a sharp sensor, and want to dim a lamp when a people walk in..

sensorValue and current is working...

but pulsewidth can't not work...I want the pulsewidth from 0-255 slowly...or when current = 255 , pulsewidth = 100,

pulsewidth will up to 255 from 100 slowly....about delay(10)"+1";

thank you...

#define sensorPin 0

boolean chking=true;
int pulsewidth;
int sensorValue;
int current;

void setup() {
 beginSerial(9600); 
 pinMode(3, OUTPUT);
 pinMode(sensorPin, INPUT);
}

void loop() {
  
      sensorValue = analogRead(sensorPin);
      
//sensor value in case 
      if (sensorValue>=600 && sensorValue<=700)
     {
       current=255;
     }
       if (sensorValue>=547 && sensorValue<=599)
     {
       current=240;
     }
       if (sensorValue>=449 && sensorValue<=546)
     {
       current=225;
     }
       if (sensorValue>=411 && sensorValue<=448)
     {
       current=210;
     }
       if (sensorValue>=390 && sensorValue<=410)
     {
       current=195;
     }
       if (sensorValue>=363 && sensorValue<=389)
     {
       current=180;
     }
       if (sensorValue>=343 && sensorValue<=362)
     {
       current=165;
     }
       if (sensorValue>=330 && sensorValue<=342)
     {
       current=150;
     }
       if (sensorValue>=320 && sensorValue<=329)
     {
       current=135;
     }
       if (sensorValue>=310 && sensorValue<=319)
     {
       current=120;
     }
       if (sensorValue>=302 && sensorValue<=309)
     {
       current=105;
     }
       if (sensorValue>=295 && sensorValue<=301)
     {
       current=90;
     }
       if (sensorValue>=290 && sensorValue<=294)
     {
       current=75;
     }
       if (sensorValue>=287 && sensorValue<=289)
     {
       current=60;
     }
        if (sensorValue>=285 && sensorValue<=286)
     {
       current=45;
     }
        if (sensorValue>=279 && sensorValue<=284)
     {
       current=30;
     }
        if (sensorValue==278)
     {
       current=15;
     }
         if (sensorValue>=0 && sensorValue<=277)
     {
       current=0;
     }   
     
     //checking
if (chking == true)
{
  int Num = current - pulsewidth;
    if (pulsewidth == current){
    }else{
      chking = false;
        if (Num > 0){
dimUp();
              }else{
                dimDown ();
              }
              
    }
}
    Serial.print(pulsewidth);
    Serial.print(' ');
}

void dimDown () {
      pulsewidth -= 1;
      if (pulsewidth == current) {
            chking = true;
      }
}

void dimUp () {
      pulsewidth += 1;
      if (pulsewidth == current) {
            chking = true;
      }
}