int r =17;
int g =16;
int b =15;
int tp =2;
void setup() {
Serial.begin(115200);
pinMode(17,OUTPUT);
pinMode(16,OUTPUT);
pinMode(15,OUTPUT);
pinMode(2,INPUT);

}

void loop() {
int Val = analogRead(2);
if(Val<=4187){
  analogWrite(17,0);
  analogWrite(16,0);
  analogWrite(15,255);
}
if(Val<=4000){
  analogWrite(17,0);
  analogWrite(16,255);
  analogWrite(15,0);
}
if(Val<=2898){
  analogWrite(17,255);
  analogWrite(16,0);
  analogWrite(15,0);
}
if(Val<=1188){
  analogWrite(17,255);
  analogWrite(16,0);
  analogWrite(15,255);
}
Serial.println("现在温度"+String(Val));
delay(100);
}