RE: Nrf52840 Bme680 mesh problem

tesc — Wed, 14 Jun 2023 13:52:13 GMT

Hi,

[quote user=""]I have successfully flashed the "zephyr/samples/sensor/bme680" application onto the board, and I am able to read sensor data such as temperature and pressure from the terminal, which is working as expected.[/quote]

This is how the bme680 sensor sample works, yes.

[quote user=""]However, when I load the "nrf/samples/bluetooth/mesh/sensor_server" application onto the same board, and then load the "nrf/samples/bluetooth/mesh/sensor_client" application on my NRF52840DK board, I am only able to retrieve the CPU temperature instead of the BME680 temperature.[/quote]

This is how the mesh sensor server sample works. In order to use temperature readings from the BME680 you must do some modifications.

The basic mesh sensor example fetches the temperature through the Zephyr sensor API, and the temperature device is configured with the line
static const struct device *dev = DEVICE_DT_GET_ONE(nordic_nrf_temp);
of that example. It should be possible to just exchange the nordic_nrf_temp with the bme680 temperature sensor device, provided that the latter is already defined in the project (which from what I understand it is in the bme680 sensor sample which you use for reference.)

Regards,
Terje