To use the node in your project you should have the rcb71/seeed-lcd-16x2 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) {
auto t = getValue<input_DEV>(ctx);
if (isInputDirty<input_UPD>(ctx)) {
t.lcd->clear();
emitValue<output_DONE>(ctx, 1);
}
emitValue<output_DEV_>(ctx, t);
}
}