#include <DHT.h>

int btn = 5, blue = 19, red = 18, dht = 15;
DHT dhtSensor = DHT(dht, DHT22);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(btn, INPUT_PULLUP);
  pinMode(blue, OUTPUT);
  pinMode(red, OUTPUT);
  pinMode(dht, INPUT);
}

void loop() {

  if (digitalRead(btn) == 0) {
    while (digitalRead(btn) == 0);
    Serial.print("Tanuphat temp: ");
    Serial.print(String(dhtSensor.readTemperature(), 2));
    Serial.print(" celsius ,humi: ");
    Serial.print(String(dhtSensor.readHumidity(), 2));
    Serial.print("%");
  } 
  if (dhtSensor.readTemperature() >= 40) {
    while (digitalRead(btn == 1));
    digitalWrite(red, HIGH);
  } else {
    digitalWrite(red, LOW);
  }
  if (dhtSensor.readHumidity() >= 50) {
    while (digitalRead(btn == 1));
    digitalWrite(blue, HIGH);
  } else {
    digitalWrite(blue, LOW);
  }

delay(100);
}