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nRF52840でBME280を使う場合のDevice Tree定義

Zephyr

Last updated at 2019-10-30Posted at 2019-10-05

Zephyrで /zephyr/samples/sensor/bme280 (I2C接続）使う場合、 /zephyr/boards/arm/nrf52840_pca10056/nrf52840_pca10056.dts に直接書くか、zephyr/samples/sensor/bme280/nrf52840_pca10056.overlayに定義する。

&i2c0 {
  compatible = "nordic,nrf-twi";
  status = "okay";
  sda-pin = <26>;
  scl-pin = <27>;

  bme280@76 {
    compatible = "bosch,bme280";
    reg = <0x76>;
    label = "BME280";
  };
};

以下のコマンドでビルドする

west build -b nrf52840_pca10056 zephyr/samples/sensor/bme280

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