get-ch-nir

wayland/as7341-spectrometer/get-ch-nir

Get the most recent measurement from the near infrared (NIR) channel.
get-ch-nir
@/get-ch-nir
Get the most recent measurement from the near infrared (NIR) channel.
DEV@/as7341-device
An as7341-device.
UPDpulse
Update.
get-ch-nir
DEV
UPD
VALUE
DONE
DONEpulse
Pulse on read.
VALUEnumber
Raw measurement from the near infrared (NIR) channel.
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_UPD

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

       auto sensor = getValue<input_DEV>(ctx);

       emitValue<output_VALUE>(ctx, sensor->getChannel(AS7341_CHANNEL_NIR));
       
       emitValue<output_DONE>(ctx, 1);
    }
}