Undefined reference to: ESP32 Error

davids2374 · October 17, 2022, 10:25pm

Hello everyone,
I am trying to include some variables in a function that is called "TouchInterface" and to run it in the loop function, the variables are strings that I want to have in the other function (TouchInterface) to do some conditionals with those, but I got the standard error "Error compiling for ESP32 Dev Module", I tried to put the loop function in many different parts and searched, but the questions that I found were for people that have .h files, and I don't have any of it, here is the error messages

Arduino: 1.8.19 (Windows 10), Board: "ESP32 Dev Module, Disabled, Minimal SPIFFS (1.9MB APP with OTA/190KB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, None"

sketch\ESP32_DISPLAY_V1.ino.cpp.o:(.literal._Z4loopv+0xc): undefined reference to `touchInterfaz()'

sketch\ESP32_DISPLAY_V1.ino.cpp.o: In function `loop()':

C:\Users\david\Downloads\ESP32_DISPLAY_V1/ESP32_DISPLAY_V1.ino:500: undefined reference to `touchInterfaz()'

collect2.exe: error: ld returned 1 exit status

exit status 1

Error compiling for board ESP32 Dev Module.

And here is the code

#include "FS.h"
#include <SPI.h>
#include <TFT_eSPI.h> // Hardware-specific library
TFT_eSPI tft = TFT_eSPI();
#include "teclado.h"
#include <Adafruit_GFX.h>
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_ILI9341.h>
#include <Adafruit_STMPE610.h>
//-------------------DISPLAY--------------------------
#define CALIBRATION_FILE "/TouchCalData3"
#define REPEAT_CAL false
#define TS_MINX 150
#define TS_MINY 130
#define TS_MAXX 3800
#define TS_MAXY 4000
#define FRAME_X 52
#define FRAME_Y 94
#define FRAME_W 135
#define FRAME_H 235

#define REDBUTTON_X FRAME_X
#define REDBUTTON_Y FRAME_Y
#define REDBUTTON_W FRAME_W
#define REDBUTTON_H FRAME_H

void touchInterfaz();
void imagenInterfaz();
void imagenBoton();
//-------------------RELE------------------------------
#define pinRele_1 32
#define pinRele_2 35
#define pinRele_3 34

int m  = 0;
int s  = 60;
int tm = 0;
int ts = 0;
int retraso;
bool estado = false;
int numc = 1;
  int m1  = 0;
  int m2  = 0;
  int m3  = 0;
  int m4  = 0;
  int m5  = 0;
  int m6  = 0;
  int m7  = 0;
  int m8  = 0;
  int m9  = 0;
  int m10 = 0;
  int m11 = 0;
  int m12 = 0;


//****************************************************************************************
void setup() {
  Serial.begin(9600);
  //----------------------------------------------------
  pinMode(ledWifi, OUTPUT);
  digitalWrite(ledWifi, HIGH);
  //---------------------
  pinMode(pinRele_1, OUTPUT);
  pinMode(pinRele_2, OUTPUT);
  pinMode(pinRele_3, OUTPUT);
  digitalWrite(pinRele_1, LOW);
  digitalWrite(pinRele_2, LOW);
  digitalWrite(pinRele_3, LOW);
  //----------------------------------------------------
  tft.begin();

  tft.setRotation(0);
  tft.setSwapBytes(true);
  uint16_t calData[5] = { 303, 3452, 412, 3382, 4 };
  tft.setTouch(calData);
  tft.fillScreen(TFT_WHITE);
  imagenInterfaz();
}
//******************************************************************************************

void loop() {
  touchInterfaz();
  String strg1  = String(0) + ":" + String(0) + ":" + String(m1) + ":" + String(60);
  String strg2  = String(0) + ":" + String(0) + ":" + String(m1) + ":" + String(60);
  String strg3  = String(0) + ":" + String(0) + ":" + String(m1) + ":" + String(60);
  String strg4  = String(0) + ":" + String(0) + ":" + String(m1) + ":" + String(60);
  String strg5  = String(0) + ":" + String(0) + ":" + String(m1) + ":" + String(60);
  String strg6  = String(0) + ":" + String(0) + ":" + String(m1) + ":" + String(60);
  String strg7  = String(0) + ":" + String(0) + ":" + String(m1) + ":" + String(60);
  String strg8  = String(0) + ":" + String(0) + ":" + String(m1) + ":" + String(60);
  String strg9  = String(0) + ":" + String(0) + ":" + String(m1) + ":" + String(60);
  String strg10 = String(0) + ":" + String(0) + ":" + String(m1) + ":" + String(60);
  String strg11 = String(0) + ":" + String(0) + ":" + String(m1) + ":" + String(60);
  String strg12 = String(0) + ":" + String(0) + ":" + String(m1) + ":" + String(60);
}

//------------------------------------------------------------------------------------------
//FUNCION DECLARACION DE TECLAS DE DISPLAY
void imagenBoton() {
  tft.fillRoundRect(puntoX, puntoY, 110, 42, 2, TFT_WHITE);
  tft.drawRoundRect(puntoX, puntoY, 110, 42, 2, TFT_BLACK);
}
void imagenBoton3() {
  tft.fillRoundRect(puntoX, puntoY, 80, 42, 2, TFT_WHITE);
  tft.drawRoundRect(puntoX, puntoY, 80, 42, 2, TFT_BLACK);
}

void imagenBoton1() {
  tft.fillRoundRect(puntoX, puntoY, 52, 42, 2, TFT_WHITE);
  tft.drawRoundRect(puntoX, puntoY, 52, 42, 2, TFT_BLACK);
}

void touchInterfaz(String &strg1, String &strg2, String &strg3, String &strg4, String &strg5, String &strg6, String &strg7, String &strg8, String &strg9, String &strg10, String &strg11, String &strg12) {
  //FUNCION PARA BOTON EN SEGUNDO PLANO
  if (tft.getTouch(&x, &y))
  {

    //----------------------------------- -
    if (x > 124 && x < 169 && y > 46 && y < 88 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      puntoX = 124; puntoY = 46;
      delay(1000);
      if (numc == 1) {
         m1--;
      }
      //-----------------
    }          
    //----------------------------------- +
    if (x > 182 && x < 227 && y > 46 && y < 88 ) {
      while(1 == 1) {
        m1++;
      }
      puntoX = 182; puntoY = 46;
    }

    //----------------------------------- STEP //57
    if (x > 64 && x < 121 && y > 44 && y < 88 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      estado = true;
      imagenBoton1();
      delay(100);
      imagenInterfaz();
      //-----------------
    }

    while (estado == true) {
      for (;;) {
        s--;
        while (s > 0) {
          while (m > 0) {
            delay(1000);
            if (s == 0) {
              s = 60;
              m = m - 1;
              s--;
            }
            if (m == 0 && s == 0) {
              s = 0;
              m = 0;
              estado = false;
            }
          }
          bool b = false;

        }
      }
    }

    //----------------------------------PROG
    if (x > 7 && x < 52 && y > 94 && y < 141 ) {
      //-----------------
      puntoX = 7; puntoY = 94;
      imagenBoton1();
      x = 0;
      y = 0;
      tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
      tft.setTextSize(2);
      tft.setCursor(10, 5);
      tft.print("Can.");
      tft.setCursor(55, 5);
      tft.print(numc);
      //-----------------
      
    switch (numc) {
      case 1:
        tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
        tft.setTextSize(2);
        tft.setCursor(125, 22);
        tft.print(strg1);
        break;

      case 2:
        tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
        tft.setCursor(10, 22);
        tft.print(strg1);
        tft.setTextSize(2);
        tft.setCursor(125, 22);
        tft.print(strg2);
        break;

      case 3:
        tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
        tft.setCursor(10, 22);
        tft.print(strg2);
        tft.setTextSize(2);
        tft.setCursor(125, 22);
        tft.print(strg3);
        break;
      case 4:
        tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
        tft.setCursor(10, 22);
        tft.print(strg3);
        tft.setTextSize(2);
        tft.setCursor(125, 22);
        tft.print(strg4);
        break;
      case 5:
        tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
        tft.setCursor(10, 22);
        tft.print(strg4);
        tft.setTextSize(2);
        tft.setCursor(125, 22);
        tft.print(strg5);
        break;
      case 6:
        tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
        tft.setCursor(10, 22);
        tft.print(strg5);
        tft.setTextSize(2);
        tft.setCursor(125, 22);
        tft.print(strg6);
        break;
      case 7:
        tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
        tft.setCursor(10, 22);
        tft.print(strg6);
        tft.setTextSize(2);
        tft.setCursor(125, 22);
        tft.print(strg7);
        break;
      case 8:
        tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
        tft.setCursor(10, 22);
        tft.print(strg7);
        tft.setTextSize(2);
        tft.setCursor(125, 22);
        tft.print(strg8);
        break;
      case 9:
        tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
        tft.setCursor(10, 22);
        tft.print(strg8);
        tft.setTextSize(2);
        tft.setCursor(125, 22);
        tft.print(strg9);
        break;
      case 10:
        tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
        tft.setCursor(10, 22);
        tft.print(strg9);
        tft.setTextSize(2);
        tft.setCursor(125, 22);
        tft.print(strg10);
        break;
      case 11:
        tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
        tft.setCursor(10, 22);
        tft.print(strg10);
        tft.setTextSize(2);
        tft.setCursor(125, 22);
        tft.print(strg11);
        break;
      case 12:
        tft.setTextColor(ILI9341_WHITE, ILI9341_DARKGREEN);
        tft.setCursor(10, 22);
        tft.print(strg11);
        tft.setTextSize(2);
        tft.setCursor(125, 22);
        tft.print(strg12);
        break;
    }
  }
    //----------------------------------- VAC
    if (x > 66 && x < 121 && y > 94 && y < 141 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      puntoX = 66; puntoY = 95;
      imagenBoton1();
      delay(100);
      imagenInterfaz();

      //-----------------
    }

    //----------------------------------- -   // RPD
    if (x > 130 && x < 230 && y > 95 && y < 138 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      puntoX = 130; puntoY = 95;
      imagenBoton();
      delay(100);
      imagenInterfaz();
      //-----------------
    }

    //----------------------------------AS
    if (x > 7 && x < 52 && y > 151 && y < 201 ) {
      //-----------------
      puntoX = 7; puntoY = 139;
      imagenBoton1();
      delay(100);
      imagenInterfaz();
      //-----------------
    }

    //----------------------------------- MS
    if (x > 66 && x < 121 && y > 152 && y < 201 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      puntoX = 66; puntoY = 139;
      imagenBoton1();
      delay(100);
      imagenInterfaz();
      //-----------------
    }

    //----------------------------------- -   // ENTER
    if (x > 130 && x < 230 && y > 152 && y < 201 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      if (numc <= 11) {
        numc = numc + 1;
      }
      puntoX = 128; puntoY = 139;
      imagenBoton();
      imagenInterfaz();
      //-----------------
    }

    //----------------------------------CLOCK
    if (x > 7 && x < 52 && y > 216 && y < 264 ) {
      //-----------------
      tft.setTextColor(ILI9341_WHITE);
      tft.setTextSize(2);
      tft.setCursor(15, 15); // x yu
      m = tm;
      s = ts;

      //-----------------
    }

    //----------------------------------- ST
    if (x > 64 && x < 121 && y > 216 && y < 264 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      puntoX = 64; puntoY = 185;
      imagenBoton1();
      delay(100);
      imagenInterfaz();
      //-----------------
    }

    //----------------------------------- -   DD
    if (x > 124 && x < 169 && y > 216 && y < 264 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      puntoX = 124; puntoY = 185;
      imagenBoton1();
      delay(100);
      imagenInterfaz();
      //-----------------
    }
    //----------------------------------- DO
    if (x > 182 && x < 227 && y > 216 && y < 264 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      puntoX = 182; puntoY = 185;
      imagenBoton1();
      delay(100);
      imagenInterfaz();
      //-----------------
    }


    //----------------------------------ROTATE
    if (x > 7 && x < 52 && y > 285 && y < 300 ) {
      //-----------------
      puntoX = 7; puntoY = 231;
      imagenBoton1();
      delay(100);
      imagenInterfaz();
      //-----------------
    }

    //----------------------------------- RAISE
    if (x > 64 && x < 121 && y > 285 && y < 300 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      puntoX = 64; puntoY = 231;
      imagenBoton1();
      delay(100);
      imagenInterfaz();
      //-----------------
    }

    //----------------------------------- -   // LOWER
    if (x > 124 && x < 169 && y > 285 && y < 300 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      puntoX = 124; puntoY = 231;
      imagenBoton1();
      delay(100);
      imagenInterfaz();
      //-----------------
    }
    //----------------------------------- GO TO
    if (x > 182 && x < 227 && y > 285 && y < 300 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      puntoX = 182; puntoY = 231;
      imagenBoton1();
      delay(100);
      imagenInterfaz();
      //-----------------
    }

    //----------------------------------CF
    if (x > 7 && x < 52 && y > 315 && y < 353) {
      //-----------------
      puntoX = 7; puntoY = 270;
      imagenBoton1();
      delay(100);
      imagenInterfaz();
      //-----------------
    }

    //----------------------------------- ES
    if (x > 64 && x < 150 && y > 315 && y < 353 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      puntoX = 64; puntoY = 270;
      imagenBoton3();
      delay(100);
      imagenInterfaz();
      //-----------------
    }

    //-----------------------------------   CA
    if (x > 153 && x < 300 && y > 315 && y < 353 ) {
      //-----------------
      digitalWrite(pinRele_1, LOW);
      digitalWrite(pinRele_2, LOW);
      digitalWrite(pinRele_3, LOW);
      //-----------------
      puntoX = 145; puntoY = 270;
      imagenBoton3();
      delay(100);
      imagenInterfaz();
    }
  }//FIN tft.getTouch
}
//------------------------------------------------------------------------------------------
//REFRESCO DE DISPLAY
void imagenInterfaz() {
  tft.pushImage(0, 0, animation_width, animation_height, frame);
}
//------------------------------------------------------------------------------------------

This is my first question, please tell me what is wrong with the question and how to make better ones, and any help would be nice, Thanks.

anon57585045 · October 17, 2022, 10:49pm

Please post the entire sketch, no matter how long. We need to see where 'touchInterfaz()' is defined.

Verbal descriptions are too error prone.

davids2374 · October 17, 2022, 10:59pm

There is the code, I know all the names are in Spanish, and I am also working with an ILI9341 but that is not my focus and this topic focus, I just need the touchInterfaz function and the variables to be working properly

anon57585045 · October 17, 2022, 11:09pm

Okay, you are the doctor so you can cure yourself.

anon57585045 · October 17, 2022, 11:15pm

Then please read the forum guidelines and find out.

davids2374 · October 17, 2022, 11:16pm

I now start to think that some of the error messages say that Adafruit_GFX_master.h is not used and I have 2 of them:

one that is master and another that doesn't I am going to see what happens if I delete one of them

anon57585045 · October 17, 2022, 11:16pm

Yes, it can possibly be a library installation problem...

davids2374 · October 17, 2022, 11:19pm

I already change it, It did get me out of one error, but the undefined reference is still on

anon57585045 · October 17, 2022, 11:19pm

Then please post your entire sketch. It's a forum standard procedure.

davids2374 · October 17, 2022, 11:20pm

There it is, in the question, there is the full code dunno what do you mean there

anon57585045 · October 17, 2022, 11:21pm

Thank you.

davids2374 · October 17, 2022, 11:21pm

There is the error message (I am going to delete the gfx error right now) and the full code

anon57585045 · October 17, 2022, 11:21pm

Have you read the forum introductory guideline documents yet?

anon57585045 · October 17, 2022, 11:22pm

By the way, never go back and edit previous posts. It destroys the sense of any other peoples answers. Post in a new message instead.

davids2374 · October 17, 2022, 11:23pm

ok, thanks for that

anon57585045 · October 17, 2022, 11:28pm

It's very simple. Your function prototype and implementation do not have the same number of parameters.

noweare · October 17, 2022, 11:30pm

Like aarag said touchInterfaz is expecting 5 strings so when you call it you have to provide 5 strings.

davids2374 · October 17, 2022, 11:32pm

But I have 12 parameters there, I don't know what you guys mean

anon57585045 · October 17, 2022, 11:33pm

Also in your comments you have a section of implementations, you call them declarations.

//FUNCION DECLARACION DE TECLAS DE DISPLAY

anon57585045 · October 17, 2022, 11:34pm

Count the parameters here:

void touchInterfaz();

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