// contro led britness -- using two butten //

int led = 0;
void setup() {
  pinMode(12, INPUT);
  pinMode(11, INPUT);
  pinMode(3, OUTPUT);
  pinMode(2, OUTPUT);
  Serial.begin(9600);
  
  // put your setup code here, to run once:

}

void loop() {
  Serial.print("butten 1 = ");

  Serial.print(digitalRead(12));
  Serial.print(" ,");
  Serial.print("butten 2 = ");
  Serial.println(digitalRead(11));
  delay(100);
  if(digitalRead(12) == 0){
    led = led+5;

  }
    if(digitalRead(11) == 0){
    led = led-5;
 
  }
  Serial.println(led);
  if(led>255){
    led=255;
   analogWrite(2, 254);
    delay(200);
   analogWrite(2, 0);
   delay(200);

  }
    if(led<0){
    led=0;
      analogWrite(2, 254);
    delay(200);
     analogWrite(2, 0);
     delay(200);
  }
      analogWrite(3,led);
  // put your main code here, to run repeatedly:

}