set-altitude-compensation

Measurements of carbon dioxide concentration based on the non-dispersive infrared (NDIR) principle are influenced by altitude. Use this node to set the altitude compensation of the SCD30. The altitude compensation setting is disregarded when an ambient pressure is given to the sensor. Altitude value is saved in non-volatile memory. The last set value will be used for altitude compensation after repowering.

struct State {
};

{{ GENERATED_CODE }}

void evaluate(Context ctx) {
    // The node responds only if there is an input pulse
    if (!isInputDirty<input_UPD>(ctx))
        return;

    // Get a pointer to the `SCD30` class instance
    auto airSensor = getValue<input_DEV>(ctx);

    airSensor->setAltitudeCompensation(getValue<input_ALT>(ctx));
    emitValue<output_DONE>(ctx,1);

}