int pinTEMP = A1;
int pinIR = A2;
int pinLIGHT = A3;

int TEMP = 0;
int IR = 0;
int LIGHT = 0;

int pinLED1 = 11;
int pinLED2 = 10;
int pinLED3 = 9;

int pinS1 = 2;
int pinS2 = 3;
int pinS3 = 4;

boolean S1 = false;
boolean S2 = false;
boolean S3 = false;

void setup() {
  Serial.begin(9600);

  pinMode(pinLED1, OUTPUT);
  pinMode(pinLED2, OUTPUT);
  pinMode(pinLED3, OUTPUT);

  pinMode(pinS1, INPUT);
  pinMode(pinS2, INPUT);
  pinMode(pinS3, INPUT);
}

void loop(){
  TEMP = analogRead(pinTEMP);
  IR = analogRead(pinIR);
  LIGHT = analogRead(pinLIGHT);

  if (digitalRead(pinS1) == LOW) { S1 = !S1;}
  if (digitalRead(pinS2) == LOW) { S2 = !S2;}
  if (digitalRead(pinS3) == LOW) { S3 = !S3;}

  delay(500);

  if (S1) {
    analogWrite(pinLED1, TEMP);
    Serial.print("T");
    Serial.println(TEMP);
  } else {
    analogWrite(pinLED1, 0);
  }

  if (S2) {
    analogWrite(pinLED2, IR);
    Serial.print("I");
    Serial.println(IR);
  } else {
    analogWrite(pinLED2, 0);
  }

  if (S3) {
    analogWrite(pinLED3, LIGHT);
    Serial.print("L");
    Serial.println(LIGHT);
  } else {
    analogWrite(pinLED3, 0);
  }
}