nextion-read

C++ implementation

struct State 
{
     bool begun;
     ConcatListView<char> view;
   };

{{ GENERATED_CODE }}

void evaluate(Context ctx) {
    if (!isInputDirty<input_DUMP>(ctx))
        return;
  
    State* state = getState(ctx);
    if (!state->begun) 
    {
        Serial2.begin(9600);
        state->begun = true;
    }
    
     auto inValue = getValue<input_INSTR>(ctx);
    
    
     Number zaehler;
     Number byte;
      
        ;
    
     // while (Serial2.available()) // bleibt hängen wenn nicht ausgelesen
    if (Serial2.available())  
    {
        zaehler += 1;
        byte = Serial2.read();
     }   
    
     
         // get the new byte:
        //auto inChar = (char)Serial2.read();
        // add it to the inputString:
         
        //state->view = ConcatListView<char>(inputString, inChar);
        // if the incoming character is a newline, set a flag so the main loop can
        // do something about it:
        /*
         if (inChar == '\n') 
        {
        stringComplete = true;
        }
       //
      inputString = "Kommt was an \n"; 
       }
       */
    
     state->view = ConcatListView<char>(inValue, inValue);
    inValue = XString(&state->view);  // Zusammengebauten String in Variable schreiben
    
    
    emitValue<output_RECIEVED>(ctx, inValue);
    emitValue<output_ANZ>(ctx, zaehler);
    emitValue<output_BIT>(ctx, byte);
    emitValue<output_DONE>(ctx, true);
    
}