To use the node in your project you should have the wayland/bmp280-barometer 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;
// Get a pointer to the `Adafruit_BMP280` class instance
auto sensor = getValue<input_DEV>(ctx);
emitValue<output_TEMP>(ctx, sensor->readTemperature());
emitValue<output_DONE>(ctx, 1);
}
}