I can't connect bme280 via SPI with a nrf52833 based board

[Reynaldo]

I'm using a EVK-NINA-B4 based on nrf52833 board and VS code with nrf connect SDK extension. I am trying to interface a bme280 sensor via SPI using the bme280 example but I didn't succeed. As a beginner I think this might be a configuration problem. It worked using I2C protocol but not SPI. I didn't change anything in main.c. I always get the same answer in the terminal:  Device bme280 is not ready; " "check the driver initialization logs for errors. That's the configuration I used:

prj.conf:

CONFIG_SENSOR=y
CONFIG_SPI=y
CONFIG_BME280=y

I created an overlay file with the same board name (ubx_evkninab4_nrf52833.overlay):

&arduino_spi {
    status = "okay";
    cs-gpios = <&gpio0 0 0>;
    bme280@0 {
        compatible = "bosch,bme280";
        reg = <0>;
        spi-max-frequency = <1000000>; /* conservatively set to 1MHz */
    };
};

[helsing]

Hello Reynaldo,

Have you tried any other pins? Have you checked that the selected pins are not interfering with anything on the EVK-NINA-B4 board? I assume this is the document showing how the pins are in use. https://content.u-blox.com/sites/default/files/EVK-NINA-B4_UserGuide_UBX-19054587.pdf

What kind of board is the BME280 sensor mounted on? How is the sensor supplied? What is the IO voltage level?

[helsing]

Please see the notes in the EVK-NINA-B4 User Guide:

Did you follow the instructions in the table above, in order to use P0.00 and P0.01? An alternative is to use a couple of other pins, for example P1.09 and P0.12.

[Reynaldo]

Hi.

Thanks for the informations. It worked. Actually I had already checked other pins but the problem was a malfunctioning sensor. After I changed the sensor I had only checked these pins which are disconnected. It worked when I used these other pins.