init

wayland/as7341-spectrometer/init

Initialize sensor.
init
@/init
Initialize sensor.
DEV@/as7341-device
An as7341-device.
I2Cxod/i2c/i2c
I²C bus
INITpulse
Pulse triggers initialization.
init
DEV
I2C
INIT
OK
OKpulse
Pulse on successful initialization.
To use the node in your project you should have the wayland/as7341-spectrometer library installed. Use the “File → Add Library” menu item in XOD IDE if you don’t have it yet. See Using libraries for more info.

C++ implementation

#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_INIT

node {

    void evaluate(Context ctx) {
        // The node responds only if there is an input pulsei
        if (!isInputDirty<input_INIT>(ctx))
            return;
        
        // Get a pointer to the `Adafruit_AS7341` class instance
        auto sensor = getValue<input_DEV>(ctx);

        auto wire = getValue<input_I2C>(ctx);

        // Attempt to initialize AS7341 module; if attempt fails emit error
        if (!sensor->begin(AS7341_I2CADDR_DEFAULT, wire, 0)) {
            raiseError(ctx);
            return;
        }

        emitValue<output_OK>(ctx, 1);


    }
}