Test du capteur AHT20+BMP280: Mesure de pression – humidité – température

				
					#include <Wire.h>
#include <Adafruit_AHTX0.h>
#include <Adafruit_BMP280.h>

Adafruit_AHTX0 aht;
Adafruit_BMP280 bmp; 

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

  // Initialisation AHT20
  if (!aht.begin()) {
    Serial.println("Erreur: AHT20 introuvable");
    while (1);
  }
  Serial.println("AHT20 OK");

  // Initialisation BMP280
  if (!bmp.begin(0x77)) { // changer en 0x76 si nécessaire
    Serial.println("Erreur: BMP280 introuvable");
    while (1);
  }
  Serial.println("BMP280 OK");

  bmp.setSampling(
    Adafruit_BMP280::MODE_NORMAL,
    Adafruit_BMP280::SAMPLING_X2,
    Adafruit_BMP280::SAMPLING_X16,
    Adafruit_BMP280::FILTER_X16,
    Adafruit_BMP280::STANDBY_MS_500
  );
}

void loop() {
  sensors_event_t humidity, temp;
  aht.getEvent(&humidity, &temp);

  float temperature_bmp = bmp.readTemperature();
  float pression = bmp.readPressure() / 100.0; // en hPa

  Serial.println("--------------");
  Serial.print("Temp AHT20: ");
  Serial.print(temp.temperature);
  Serial.println(" °C");

  Serial.print("Humidite AHT20: ");
  Serial.print(humidity.relative_humidity);
  Serial.println(" %");

  Serial.print("Temp BMP280: ");
  Serial.print(temperature_bmp);
  Serial.println(" °C");

  Serial.print("Pression BMP280: ");
  Serial.print(pression);
  Serial.println(" hPa");

  delay(2000);
}