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I'm trying to create an arduino code that returns a value for the button that was pressed as the user choice. However, whichever button I press the only return is 2. Also, whenever pressing other buttons, button 2 is the one that seems to have been pressed.

What could it be? Any ideas on how to solve this issue?

This is the current code I have.

#include <MCUFRIEND_kbv.h>
#include <TouchScreen.h>

#define MINPRESSURE 500
#define MAXPRESSURE 2000
#define PRETO   0x0000
#define VERMELHO     0xF800
#define VERDE   0x07E0
#define BRANCO   0xFFFF


#define XP 6
#define XM A2
#define YP A1
#define YM 7


#define TS_LEFT 945
#define TS_RT 221
#define TS_TOP 916
#define TS_BOT 201


TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
Adafruit_GFX_Button botoes[4];
MCUFRIEND_kbv tft;


int posX, posY;
int escolha = 0;


bool obterToque(void) {
    TSPoint p = ts.getPoint();
    pinMode(YP, OUTPUT);

    pinMode(XM, OUTPUT);
    digitalWrite(YP, HIGH);

    digitalWrite(XM, HIGH);
    bool pressed = (p.z > MINPRESSURE && p.z < MAXPRESSURE);
    if (pressed) {
        posX = map(p.x, TS_LEFT, TS_RT, 0, 320); 
        posY = map(p.y, TS_TOP, TS_BOT, 0, 240);
        // Debugging: Print the raw and mapped touch coordinates
        //Serial.print("Raw X: "); Serial.print(p.x); Serial.print(", Raw Y: "); Serial.println(p.y);
        //Serial.print("Mapped X: "); Serial.print(posX); Serial.print(", Mapped Y: "); Serial.println(posY);
        return true;
    }
    return false; 
}


void setup() {
  Serial.begin(9600);
  uint16_t ID = tft.readID();
  tft.begin(ID);
  tft.setRotation(3);
  telaInicial();
}


void telaInicial(){
  tft.fillScreen(PRETO);
  botoes[0].initButton(&tft,  160, 40, 250, 40, BRANCO, VERDE, PRETO, "1. Normal Sinus", 2);
  botoes[1].initButton(&tft, 160, 95, 250, 40, BRANCO, VERDE, PRETO, "2. Atrial Fibrillation", 2);
  botoes[2].initButton(&tft, 160, 150, 250, 40, BRANCO, VERDE, PRETO, "3. Ventricular Ectopy", 2);
  botoes[3].initButton(&tft, 160, 205, 250, 40, BRANCO, VERDE, PRETO, "4. SV Arrhythmia", 2);


for (int i = 0; i < 4; i++) {
    botoes[i].drawButton(false);
  }
}


void TeclaPressionada(bool teclaTocada) {
  for (int i = 0; i < 4; i++) {
    botoes[i].press(teclaTocada && botoes[i].contains(posX, posY));
  }
  checkPressedButton();
}


void checkPressedButton() {
  for (int i = 0; i < 4; i++) {
    if (botoes[i].justPressed()) {
      checkPressed(i);
    }
  }
}


void esperaSoltar() {
  while (obterToque()) {
    delayMicroseconds(50);
  }
}


void checkPressed(int button) {
    botoes[button].drawButton(true);
    esperaSoltar();
    botoes[button].drawButton();


if (button == 0) {
    escolha = 1;
} else if (button == 1) {
    escolha = 2;
} else if (button == 2) {
    escolha = 3;
} else if (button == 3) {
    escolha = 4;
}

Serial.print(&quot;Escolha: &quot;);
Serial.println(escolha);



}


void loop() {
  bool toque = obterToque();
  TeclaPressionada(toque);
}

Thanks for reading.

GIOVANNE LUCAS BARRETO PINHEIR
  • 11
  • 2

1 Answers1

1

I managed to find an answer on this video tutorial: https://www.youtube.com/watch?v=wn-1hHjRyjo

Here's the screen project I'm working on.

#include <MCUFRIEND_kbv.h>
#include <Adafruit_GFX.h>
#include <TouchScreen.h>

MCUFRIEND_kbv tft;


#define XP 6
#define XM A2
#define YP A1
#define YM 7


#define TS_LEFT 945
#define TS_RT 221
#define TS_TOP 916
#define TS_BOT 201


TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);


// Definição de cores
#define BLACK 0x0000
#define BLUE 0x2015
#define BLUE2 0x0DDE
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#define GREY 0xC639


// Variáveis Globais
uint32_t startRead = 0;
int page = 0;
int posX;
int posY;


// Variables for ECG data
float ecgValue = 0.0; // Current ECG value received from serial
int scale = 75;      // Scale factor for voltage values
int startY;          // Vertical center for the waveform
int ecgIndex = 0;    // Current index for plotting
int xPos = 0;        // Horizontal position to draw the next data point
int choice = 0;       // User rhythm selection variable to lead to desired rhythm


#define MINPRESSURE 10
#define MAXPRESSURE 1000


void setup(void) {
  Serial.begin(115200);
  Serial.println("TFT Test");
  tft.reset();
  delay(500);
  uint16_t identifier = tft.readID();
  tft.begin(identifier);
  tft.setRotation(1);
  tft.setCursor(0, 0);
  tft.setTextColor(BLACK);
  tft.setTextSize(2);


tft.println("Programa feito por: ");
  tft.println("Giovanne Lucas");
  tft.println("Barreto");
  tft.println("giovanne.pinto@medicina.uniceplac.edu.br");


delay(2000);
  tft.fillScreen(BLACK);


displayBootScreen();
  delay(5000);


telainicial();
  page = 0;


startY = tft.height() / 2; // Calculate vertical center for ECG plotting
}


void displayBootScreen() {
    int screenWidth = tft.width();
    int screenHeight = tft.height();
    tft.drawBitmap(0, 0, bootImage, screenWidth, screenHeight, WHITE);
    delay(5000);
    tft.fillScreen(0x0000); // Placeholder: Fill screen with black
    tft.setTextColor(0xFFFF);
    tft.setTextSize(2);
    //tft.setCursor(10, screenHeight / 2 - 10);
    //tft.print("Booting...");
}


void telainicial() {
  tft.fillScreen(WHITE);
  tft.fillRoundRect(5, 5, 310, 30, 0, BLACK);
  tft.fillRoundRect(7, 7, 306, 26, 0, BLUE);
  tft.setCursor(120, 10);
  tft.setTextColor(WHITE);
  tft.setTextSize(3);
  tft.print("MENU");


tft.fillRoundRect(50, 55, 220, 40, 0, BLACK);
  tft.fillRoundRect(52, 57, 216, 36, 0, GREY);
  tft.setCursor(60, 65);
  tft.setTextColor(BLACK);
  tft.setTextSize(1);
  tft.print("1. Ritmo Sinusal");


tft.fillRoundRect(50, 115, 220, 40, 0, BLACK);
  tft.fillRoundRect(52, 117, 216, 36, 0, GREY);
  tft.setCursor(60, 124);
  tft.setTextColor(BLACK);
  tft.setTextSize(1);
  tft.print("2. Fibrilacao Atrial");


tft.fillRoundRect(50, 175, 220, 40, 0, BLACK);
  tft.fillRoundRect(52, 177, 216, 36, 0, GREY);
  tft.setCursor(60, 185);
  tft.setTextColor(BLACK);
  tft.setTextSize(1);
  tft.print("3. Ectopia Ventricular");
}


void tela1() {
  tft.fillScreen(WHITE);
  tft.fillRoundRect(5, 5, 310, 30, 0, BLACK);
  tft.fillRoundRect(7, 7, 306, 26, 0, BLUE);
  tft.setCursor(120, 10);
  tft.setTextColor(WHITE);
  tft.setTextSize(1);
  tft.print("Ritmo Sinusal");


tft.fillTriangle(30, 20, 50, 30, 50, 10, GREY); // Botão de voltar
}


void tela2() {
  tft.fillScreen(WHITE);
  tft.fillRoundRect(5, 5, 310, 30, 0, BLACK);
  tft.fillRoundRect(7, 7, 306, 26, 0, BLUE);
  tft.setCursor(90, 10);
  tft.setTextColor(WHITE);
  tft.setTextSize(1);
  tft.print("Fibrilacao Atrial");


tft.fillTriangle(30, 20, 50, 30, 50, 10, GREY); // Botão de voltar
}


void tela3() {
  tft.fillScreen(WHITE);
  tft.fillRoundRect(5, 5, 310, 30, 0, BLACK);
  tft.fillRoundRect(7, 7, 306, 26, 0, BLUE);
  tft.setCursor(90, 10);
  tft.setTextColor(WHITE);
  tft.setTextSize(1);
  tft.print("Ectopia Ventricular");


tft.fillTriangle(30, 20, 50, 30, 50, 10, GREY); // Botão de voltar
}


void tela4() {
  tft.fillScreen(WHITE);
  tft.fillRoundRect(5, 5, 310, 30, 0, BLACK);
  tft.fillRoundRect(7, 7, 306, 26, 0, BLUE);
  tft.setCursor(90, 10);
  tft.setTextColor(WHITE);
  tft.setTextSize(1);
  tft.print("Arritmia Supraventricular");


tft.fillTriangle(30, 20, 50, 30, 50, 10, GREY); // Botão de voltar
}


void plotECG() {
  static int xPos = 0; // horizontal position to draw the next data point
  static int startY = tft.height() / 2; // vertical center for the waveform
  static int lastY = startY; // previous Y coordinate


if (Serial.available() > 0) {
    float ecgValue = Serial.parseFloat();
    int y1 = startY - (int)(ecgValue * scale); // calculate Y coordinate based on ECG value


// draw a line from the previous point to the current point
tft.drawLine(xPos - 1, lastY, xPos, y1, RED);

// update lastY and xPos for the next loop iteration
lastY = y1;
xPos = (xPos + 1) % tft.width(); // wrap xPos around the screen width

// clear the screen and redraw the grid if necessary
if (xPos == 0) {
  tft.fillScreen(WHITE); // clear the screen
  drawECGGrid(); // redraw the grid
}



}
}


void loop() {
  TSPoint p = ts.getPoint();
  pinMode(XM, OUTPUT);
  digitalWrite(XM, LOW);
  pinMode(YP, OUTPUT);
  digitalWrite(YP, HIGH);
  pinMode(YM, OUTPUT);
  digitalWrite(YM, LOW);
  pinMode(XP, OUTPUT);
  digitalWrite(XP, HIGH);


if (p.z > MINPRESSURE && p.z < MAXPRESSURE) {
    posX = map(p.y, TS_LEFT, TS_RT, 0, 320);
    posY = map(p.x, TS_TOP, TS_BOT, 0, 240);


if (page == 0) {
  if (posX &gt; 52 &amp;&amp; posX &lt; 268 &amp;&amp; posY &gt; 57 &amp;&amp; posY &lt; 93)  //RITMO SINUSAL
  {
    page = 1;
    choice = 1;
    tela1();
    delay(50); // debounce
  }
  if (posX &gt; 52 &amp;&amp; posX &lt; 268 &amp;&amp; posY &gt; 117 &amp;&amp; posY &lt; 153)  //FIBRILACAO ATRIAL
  {
    page = 2;
    choice = 2;
    tela2();
    delay(50); // debounce
  }
  if (posX &gt; 52 &amp;&amp; posX &lt; 268 &amp;&amp; posY &gt; 177 &amp;&amp; posY &lt; 213)  //ECTOPIA VENTRICULAR
  {
    page = 3;
    choice = 3;
    tela3();
    delay(50); // debounce
  }
} else {
  // Verifica o botão de voltar
  if (posX &gt; 30 &amp;&amp; posX &lt; 50 &amp;&amp; posY &gt; 10 &amp;&amp; posY &lt; 30)  //botão voltar
  {
    telainicial();
    page = 0;
  }
}



}
  if (page == 1) {
    plotECG(); // Ritmo Sinusal
  } else if (page == 2) {
    plotECG(); // Fibrilação Atrial
  } else if (page == 3) {
    plotECG(); // Ectopia Ventricular
  } else if (page == 4) {
    plotECG(); // Arritmia Supraventricular
  }


// Always send the choice value to the serial port
  Serial.print("Choice: ");
  Serial.println(choice);


}


// Function to draw the ECG grid
void drawECGGrid() {
    int smallSquareSize = 10; // 10 pixels for small squares
    int largeSquareSize = 50; // 50 pixels for large squares


uint16_t smallGridColor = GREY; // Light grey color for small squares
uint16_t largeGridColor = 0x7BEF; // Darker grey color for large squares

// Draw the small squares
for (int x = 0; x &lt;= tft.width(); x += smallSquareSize) {
    tft.drawFastVLine(x, 0, tft.height(), smallGridColor);
}
for (int y = 0; y &lt;= tft.height(); y += smallSquareSize) {
    tft.drawFastHLine(0, y, tft.width(), smallGridColor);
}

// Draw the large squares
for (int x = 0; x &lt;= tft.width(); x += largeSquareSize) {
    tft.drawFastVLine(x, 0, tft.height(), largeGridColor);
}
for (int y = 0; y &lt;= tft.height(); y += largeSquareSize) {
    tft.drawFastHLine(0, y, tft.width(), largeGridColor);
}



}
GIOVANNE LUCAS BARRETO PINHEIR
  • 11
  • 2