AHT20 + BMP280 combined sensor example script

AHT20_BMP280.c

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

Adafruit_AHTX0  aht = {};
Adafruit_BMP280 bmp = {}; // I2C

void setup()
{
    Serial.begin(115200);
    while (!Serial)
        ; /* Wait for serial port to connect */

    /* AHT20 SETUP */
    if (!aht.begin())
    {
        Serial.println("Could not find AHT20? Check wiring!");
        while (1)
            delay(100);
    }
    Serial.println("AHT20 found");

    /* BMP280 SETUP */
    if (!bmp.begin())
    {
        Serial.println("Could not find a valid BMP280 sensor, check wiring!");
        while (1)
            delay(100);
    }
    Serial.println("BMP280 found");

    /* Default settings */
    bmp.setSampling(Adafruit_BMP280::MODE_NORMAL,     /* Operating Mode. */
                    Adafruit_BMP280::SAMPLING_X2,     /* Temp. oversampling */
                    Adafruit_BMP280::SAMPLING_X16,    /* Pressure oversampling */
                    Adafruit_BMP280::FILTER_X16,      /* Filtering. */
                    Adafruit_BMP280::STANDBY_MS_500); /* Standby time. */

    delay(100);
}

void loop()
{
    sensors_event_t humidity = {}, temp = {};
    aht.getEvent(&humidity, &temp); // Populate temp and humidity objects with fresh data

    Serial.print("AHT: ");
    Serial.print(temp.temperature);
    Serial.print("C\t");

    Serial.print(humidity.relative_humidity);
    Serial.println("% rH");

    Serial.print("BMP: ");
    Serial.print(bmp.readTemperature());
    Serial.print("C\t");

    Serial.print(bmp.readPressure());
    Serial.print("Pa\t");

    const float seaLevelhPa = 1013.25f;
    Serial.print(bmp.readAltitude(local_air_pressure));
    Serial.println("m");

    delay(3000);
}