To use the node in your project you should have the wayland/wio-terminal-bar-chart 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 `TFT_eSPI tft` class instance
auto barchart = getValue<input_BChart>(ctx);
if(getValue<input_Show>(ctx)){
barchart -> ShowAxis();
} else {
barchart -> notShowAxis();
}
emitValue<output_Done>(ctx, 1);
}
}