get-page-id
wayland/nextion/get-page-id
Get ID number of current and previous pages.
get-page-id
@/get-page-id
Get ID number of current and previous pages.
DEV@/nextion-serial
A nextion device.
UPDpulse
Update.
Donepulse
Pulse after retrieving page IDs.
Prevnumber
ID of previous page.
Currnumber
ID of current page.
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 `EasyNex` class instance
auto eznex = getValue<input_DEV>(ctx);
emitValue<output_Curr>(ctx, eznex -> currentPageId);
emitValue<output_Prev>(ctx, eznex -> lastCurrentPageId);
emitValue<output_Done>(ctx, 1);
}
}