//  Listen To Local Sensor
int start_sensor_listener(void) {
    //  Set the sensor polling time to 10 seconds.  SENSOR_DEVICE is either "bme280_0" or "temp_stm32_0"
    int rc = sensor_set_poll_rate_ms(SENSOR_DEVICE, SENSOR_POLL_TIME);
    assert(rc == 0);

    //  Fetch the sensor by name, without locking the driver for exclusive access.
    struct sensor *listen_sensor = sensor_mgr_find_next_bydevname(SENSOR_DEVICE, NULL);
    assert(listen_sensor != NULL);

    //  Define the listener function to be called after polling the temperature sensor.
    struct sensor_listener listener;
    listener.sl_sensor_type = TEMP_SENSOR_TYPE,      //  Type of sensor: ambient temperature. Either computed (floating-point) or raw (integer)
    listener.sl_func        = read_temperature,      //  Listener function to be called with the sensor data
    listener.sl_arg         = (void *) LISTENER_CB,  //  Indicate to the listener function that this is a listener callback

    //  Register the Listener Function to be called every 10 seconds, with the polled sensor data.
    rc = sensor_register_listener(listen_sensor, &listener);
    assert(rc == 0);
    return 0;
}