si1145-light-sensor

C++ implementation

// Tell XOD where it could download the library:
#pragma XOD require "https://github.com/adafruit/Adafruit_SI1145_Library"

//Include C++ libraries
{{#global}}
#include <Wire.h>
#include <Adafruit_SI1145.h>
{{/global}}

struct State {
    uint8_t mem[sizeof(Adafruit_SI1145)];
};

// Define our custom type as a pointer on the class instance.
using Type = Adafruit_SI1145*;

{{ GENERATED_CODE }}

void evaluate(Context ctx) {
    // It should be evaluated only once on the first (setup) transaction
    if (isSettingUp()) {
        auto state = getState(ctx);
        // Create a new object in the memory area reserved previously.
        Type sensor = new (state->mem) Adafruit_SI1145();
        if (!sensor->begin()) {
            raiseError(ctx);
            return;
        }
    }

    // Measure light intensity only if there is an input pulse.
    if (isInputDirty<input_UPD>(ctx)) {
        auto state = getState(ctx);
        auto sensor = reinterpret_cast<Adafruit_SI1145*>(state->mem);

        emitValue<output_VIS>(ctx, sensor->readVisible());
        emitValue<output_IR>(ctx, sensor->readIR());

        float UVindex = sensor->readUV();
        // the index is multiplied by 100 so to get the
        // integer index, divide by 100!
        UVindex /= 100.0;
        emitValue<output_UV>(ctx, UVindex);
        emitValue<output_DONE>(ctx, 1);
    }

}