#include "BluetoothSerial.h"

BluetoothSerial SerialBT;

#define RedLed 13
#define GreenLed 12
#define BlueLed 14

String recv = "";

void setup() {
  Serial.begin(115200);

  pinMode(RedLed, OUTPUT);
  pinMode(GreenLed, OUTPUT);
  pinMode(BlueLed, OUTPUT);

  SerialBT.begin("ESP32_Temperature_Humidity");
  Serial.println("Thiết bị đã bắt đầu, bạn có thể kết nối với Bluetooth!");
}

void loop() {
  float temperature = random(0, 100);
  float humidity = random(0, 100);

  if (SerialBT.available()) {
    char string = SerialBT.read();
    recv = recv + string;
    delay(1);
  }

  if (recv == "T") {
    SerialBT.print("Temperature: ");
    SerialBT.println(temperature, 2);
  }
  if (recv == "H") {
    SerialBT.print("Humidity: ");
    SerialBT.println(humidity, 1);
  }
  recv = "";

  Serial.print("Temperature: ");
  Serial.print(temperature, 2);
  Serial.println("°C");
  Serial.print("Humidity: ");
  Serial.print(humidity, 1);
  Serial.println("%");
  Serial.println("---");

  delay(1000);
}