read-lux
wayland/tsl2591-light-sensor/read-lux
Read lux and raw luminosity measurements.
read-lux
@/read-lux
Read lux and raw luminosity measurements.
DEV@/tsl2591-device
A tsl2591-device.
UPDpulse
Update. Trigger read.
DONEpulse
Pulse on completion.
LUXnumber
Lux (or < 0 if overflow)
IRnumber
Infrared luminosity (raw count).
FULLnumber
Luminosity (raw count) of full spectrum (visible and infrared).
C++ implementation
node {
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 `Adafruit_TSL2591` class instance
auto sensor = getValue<input_DEV>(ctx);
uint32_t lum = sensor -> getFullLuminosity();
uint16_t ir, full;
ir = lum >> 16;
full = lum & 0xFFFF;
emitValue<output_FULL>(ctx, full);
emitValue<output_IR>(ctx, ir);
emitValue<output_LUX>(ctx, sensor->calculateLux(full, ir));
emitValue<output_DONE>(ctx, 1);
}
}