#include <SoftwareSerial.h>
#include "DHT.h"

// Bluetooth module
#define rxPin 11
#define txPin 10
SoftwareSerial mySerial(rxPin, txPin);

// DHT sensor
#define DHTPIN 9
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  pinMode(rxPin, INPUT);
  pinMode(txPin, OUTPUT);

  mySerial.begin(38400); // Bluetooth
  Serial.begin(38400);   // USB Serial Monitor (optional for debugging via arduino usb)

  dht.begin();
}

void loop() {
  float temp = dht.readTemperature();
  float hum = dht.readHumidity();

  // Check if values are usables
  if (isnan(temp) || isnan(hum)) {
    Serial.println("Failed to read from DHT sensor!");
  }
  else {
    String tempStr = "Temperature = " + String(temp) + " °C";
    String humStr = "Humidite = " + String(hum) + " %";

    // Send to Bluetooth
    mySerial.println(String(temp) + ";" + String(hum));

    // Show on Serial Monitor (for debugging)
    Serial.println(tempStr);
    Serial.println(humStr);
  }
  delay(10000);
}