fbpixel
Etiquetas: ,
5
(11)

Los escudos TFT son pantallas LCD sensibles al tacto para mostrar imágenes y crear interfaces de usuario, con gráficos más o menos complejos, para accionar los microcontroladores de Arduino. En este tutorial, usamos el escudo TFT de 3,5″ de Kuman (muy cercano al de 2,8″) pero este tutorial puede aplicarse a otros escudos o módulos LCD. Revise cuidadosamente los pines usados y la compatibilidad de la biblioteca.

Hardware

  • Computadora
  • Arduino UNO o Mega
  • Cable USB A macho a B macho
  • TFT LCD Shield
  • Tarjeta SD

Principio de funcionamiento

El escudo TFT está equipado con una pantalla táctil LCD que permite mostrar imágenes en color y crear interfaces con curvas y botones para interactuar y ver los datos del Arduino. También está equipado con un lector de tarjetas micro SD que puede ser usado para guardar imágenes u otros datos.

Esquema

El escudo TFT se coloca directamente en una tarjeta Arduino UNO o Mega. El escudo utiliza casi todos los alfileres de la ONU de Arduino. Asegúrate de no usar los mismos alfileres para otros módulos.
Para su información los alfileres disponibles son:

  • pin analógico A5
  • pin digital 0
  • pin digital 1


Si no utiliza la funcionalidad táctil de la pantalla, también puede utilizar los pines: A1, A2, 6 y 7.
Si está usando otro escudo o módulo LCD, asegúrese de revisar el pinout.

Código

Para utilizar el objeto TftScreen, utilizamos las librerías SD.h, Adafruit_GFX.h, MCUFRIEND_kbv.h, et TouchScreen.h que permiten gestionar la comunicación con la tarjeta SD, la creación de gráficos, la gestión de la pantalla y la pantalla táctil. Este ejemplo ofrece un manejo muy simple de la pantalla.

//Libraries
#include <SD.h>//https://www.arduino.cc/en/reference/SD
#include <Adafruit_GFX.h>//https://github.com/adafruit/Adafruit-GFX-Library
#include <MCUFRIEND_kbv.h>//https://github.com/prenticedavid/MCUFRIEND_kbv
#include <TouchScreen.h> //https://github.com/adafruit/Adafruit_TouchScreen

//Constants
#define SD_CS 10
#define BLACK 0
#define GREY 21845
#define BLUE 31
#define RED 63488
#define GREEN 2016
#define DARKGREEN 1472
#define CYAN 2047
#define MAGENTA 63519
#define YELLOW 65504
#define GOLD 56768
#define WHITE 65535

//Touch screen configuration
#define MINPRESSURE 200
#define MAXPRESSURE 1000
// ALL Touch panels and wiring is DIFFERENT
// copy-paste results from TouchScreen_Calibr_native.ino
//3.5 Parameters
const int XP = 8, XM = A2, YP = A3, YM = 9; //320x480 ID=0x9486
const int TS_LEFT = 144, TS_RT = 887, TS_TOP = 936, TS_BOT = 87;
//2.8 Parameters
//const int XP = 8, XM = A2, YP = A3, YM = 9; //240x320 ID=0x9341
//const int TS_LEFT = 907, TS_RT = 120, TS_TOP = 74, TS_BOT = 913;

TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
TSPoint p;
bool down;
int pixel_x, pixel_y;     //Touch_getXY() updates global vars

//Variables
int currentPage  = 0, oldPage = -1;

//Objects
MCUFRIEND_kbv tft;

// Button calibration
Adafruit_GFX_Button page1_btn, page2_btn;
int margin = 5;
int btnWidth = 100;
int btnHeight = 40;
int btnY = 200;

void setup() {
  //Init Serial USB
  Serial.begin(9600);
  Serial.println(F("Initialize System"));
  //Init tft screen
  uint16_t ID = tft.readID();
  if (ID == 0xD3D3) ID = 0x9486;  //for 3.5" TFT LCD Shield , 0x9341 for 2.8" TFT LCD Shield  
  tft.begin(ID);
  tft.setRotation(1);//0-PORTRAIT 1-PAYSAGE 2-REVERSE PORTRAIT 3-REVERSE PAYSAGE
  //Uncomment if you are using SD
  /*if (!SD.begin(SD_CS)) {
    Serial.println(F("initialization failed!"));
    return;
  }*/
  currentPage = 0; // Indicates that we are at Home Screen
}

void loop() {
  down = Touch_getXY();
  switch (currentPage) {
    case 0:
      if (currentPage != oldPage) {
        Serial.println(F("Page 1"));
        drawPage1();
      }
      page2_btn.press(down && page2_btn.contains(pixel_x, pixel_y));
      //if (page2_btn.justReleased()) page2_btn.drawButton();

      if (page2_btn.justPressed()) {
        currentPage = 1;
      }
      break;

    case 1:
      if (currentPage != oldPage) {
        Serial.println(F("Page 2"));
        drawPage2();
      }
      page1_btn.press(down && page1_btn.contains(pixel_x, pixel_y));
      //if (page1_btn.justReleased()) page1_btn.drawButton();

      if (page1_btn.justPressed()) {
        currentPage = 0;
      }
      break;
  }
}

void drawPage1() { /* function drawHomePage */
  tft.setRotation(1);
  tft.fillScreen(BLACK);
  //Title
  tft.setCursor(0, 10);
  tft.setTextSize(3);
  tft.setTextColor(WHITE, BLACK);
  tft.print("This is page 1"); // Prints the string on the screen
  tft.drawLine(0, 32, 319, 32, DARKGREEN); // Draws the red line

  //text
  tft.setTextSize(3);
  tft.setTextColor(RED, BLACK);
  tft.setCursor(tft.width() / 2. -  14 * 3 * 3, 80);
  tft.print(" Go to page 2 ");

  //Button
  page2_btn.initButton(&tft, tft.width() / 2., 200, 2 * btnWidth, btnHeight, WHITE, GREEN, BLACK, "Page 2", 2);
  page2_btn.drawButton(false);
  oldPage = currentPage;
}

void drawPage2() { /* function drawHomePage */
  tft.setRotation(1);
  tft.fillScreen(GREY);
  //Title
  tft.setCursor(0, 10);
  tft.setTextSize(3);
  tft.setTextColor(WHITE, GREY);
  tft.print("This is page 2"); // Prints the string on the screen
  tft.drawLine(0, 32, 319, 32, DARKGREEN); // Draws the red line

  //text
  tft.setTextSize(3);
  tft.setTextColor(GREEN, BLACK);
  tft.setCursor(tft.width() / 2. - 14 * 3 * 3, 80);
  tft.print(" Go to page 1 ");

  //Button
  page1_btn.initButton(&tft, tft.width() / 2., 200, 2 * btnWidth, btnHeight, WHITE, RED, BLACK, "Page 1", 2);
  page1_btn.drawButton(false);
  oldPage = currentPage;
}
/************************************************************************************
    UTILITY FUNCTION
*************************************************************************************/
bool Touch_getXY(void)
{
  p = ts.getPoint();
  pinMode(YP, OUTPUT);      //restore shared pins
  pinMode(XM, OUTPUT);
  digitalWrite(YP, HIGH);
  digitalWrite(XM, HIGH);
  bool pressed = (p.z > MINPRESSURE && p.z < MAXPRESSURE);
  if (pressed) {
    if (tft.width() <= tft.height()) { //Portrait
      pixel_x = map(p.x, TS_LEFT, TS_RT, 0, tft.width()); //.kbv makes sense to me
      pixel_y = map(p.y, TS_TOP, TS_BOT, 0, tft.height());
    } else {
      pixel_x = map(p.y, TS_TOP, TS_BOT, 0, tft.width());
      pixel_y = map(p.x, TS_RT, TS_LEFT, 0, tft.height());
    }
  }
  return pressed;
}

Bono: Ejemplo de interfaz gráfica

En este ejemplo, crearemos una interfaz gráfica de usuario para mostrar las diferentes características que se pueden desarrollar con el escudo TFT.

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

#include <Fonts/FreeSans9pt7b.h>
#include <Fonts/FreeSans12pt7b.h>
#include <Fonts/FreeSerif12pt7b.h>
#include <FreeDefaultFonts.h>

#define MINPRESSURE 200
#define MAXPRESSURE 1000

// ALL Touch panels and wiring is DIFFERENT
// copy-paste results from TouchScreen_Calibr_native.ino
//3.5 Calibration
const int XP = 8, XM = A2, YP = A3, YM = 9; //320x480 ID=0x9486
const int TS_LEFT = 144, TS_RT = 887, TS_TOP = 936, TS_BOT = 87;
/*PORTRAIT CALIBRATION     320 x 480
  x = map(p.x, LEFT=144, RT=887, 0, 320)
  y = map(p.y, TOP=936, BOT=87, 0, 480)
  Touch Pin Wiring XP=8 XM=A2 YP=A3 YM=9
  LANDSCAPE CALIBRATION    480 x 320
  x = map(p.y, LEFT=936, RT=87, 0, 480)
  y = map(p.x, TOP=887, BOT=144, 0, 320)*/
//2.8 Calbiration
//const int XP=8,XM=A2,YP=A3,YM=9; //240x320 ID=0x9341
//const int TS_LEFT=907,TS_RT=120,TS_TOP=74,TS_BOT=913;
/*PORTRAIT CALIBRATION     240 x 320
  x = map(p.x, LEFT=907, RT=120, 0, 240)
  y = map(p.y, TOP=74, BOT=913, 0, 320)
  Touch Pin Wiring XP=8 XM=A2 YP=A3 YM=9
  LANDSCAPE CALIBRATION    320 x 240
  x = map(p.y, LEFT=74, RT=913, 0, 320)
  y = map(p.x, TOP=120, BOT=907, 0, 240)*/


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

Adafruit_GFX_Button on_btn, off_btn, page1_btn, page2_btn, page3_btn;
Adafruit_GFX_Button ok_btn, cncl_btn, plus_btn, minus_btn;
Adafruit_GFX_Button menu_btn, info_btn, back_btn;

int pixel_x, pixel_y;     //Touch_getXY() updates global vars

// Button calibration
int margin = 5;
int btnWidth = 100;
int btnHeight = 40;
int btnY = 200;

// Software variable
bool enable_nuit = false;
int parameter = 50, old_parameter = 50;

long temp0 = 60;
long temp1 = 25.5;
long temp2 = 40;
long temp3 = 35.6;


#define BLACK   0x0000
#define GREY    0x5555
#define BLUE    0x001F
#define RED     0xF800
#define GREEN   0x07E0
#define DARKGREEN   0x05C0
#define CYAN    0x07FF
#define MAGENTA 0xF81F
#define YELLOW  0xFFE0
#define GOLD    0xDDC0
#define WHITE   0xFFFF

enum pageId {
  MENU,
  SENSOR,
  CMD,
  PARAM,
  INFO
};
unsigned int currentPage = MENU, oldPage = -1;

void setup(void)
{
  Serial.begin(9600);
  //init TFTTouch
  uint16_t ID = tft.readID();
  Serial.print("TFT ID = 0x");
  Serial.println(ID, HEX);
  Serial.println(F("Calibrate for your Touch Panel"));
  if (ID == 0xD3D3) ID = 0x9486;  //for 3.5" TFT LCD Shield , 0x9341 for 2.8" TFT LCD Shield
  tft.begin(ID);
  tft.setRotation(1); //0-PORTRAIT 1-PAYSAGE 2-REVERSE PORTRAIT 3-REVERSE PAYSAGE
  //tft.setFont(&FreeSmallFont);
  /*if (!SD.begin(SD_CS)) {
    Serial.println(F("initialization failed!"));
    return;
    }*/
  currentPage = MENU; // Indicates that we are at Home Screen
  Serial.println("Home Page");
}

bool down ;
void loop(void) {
  switch (currentPage) {
    case MENU: //Menu page
      if (currentPage != oldPage)   drawMenuScreen();
      page1_btn.press(down && page1_btn.contains(pixel_x, pixel_y));
      page2_btn.press(down && page2_btn.contains(pixel_x, pixel_y));
      page3_btn.press(down && page3_btn.contains(pixel_x, pixel_y));

      if (page1_btn.justReleased())
        page1_btn.drawButton();
      if (page2_btn.justReleased())
        page2_btn.drawButton();
      if (page3_btn.justReleased())
        page3_btn.drawButton();

      if (page1_btn.justPressed()) {
        page1_btn.drawButton(true);
        currentPage = SENSOR;
      }
      if (page2_btn.justPressed()) {
        page2_btn.drawButton(true);
        currentPage = CMD;
      }
      if (page3_btn.justPressed()) {
        page3_btn.drawButton(true);
        currentPage = PARAM;
      }
      break;

    case SENSOR:
      if (currentPage != oldPage)   drawSensorScreen();
      readSensor();
      updateTemp();
      menu_btn.press(down && menu_btn.contains(pixel_x, pixel_y));
      info_btn.press(down && info_btn.contains(pixel_x, pixel_y));

      if (menu_btn.justReleased())
        menu_btn.drawButton();
      if (info_btn.justReleased())
        info_btn.drawButton();

      if (menu_btn.justPressed()) {
        menu_btn.drawButton(true);
        currentPage = MENU;
      }
      if (info_btn.justPressed()) {
        info_btn.drawButton(true);
        currentPage = INFO;
      }
      break;

    case CMD:
      if (currentPage != oldPage)   drawCmdScreen();
      on_btn.press(down && on_btn.contains(pixel_x, pixel_y));
      off_btn.press(down && off_btn.contains(pixel_x, pixel_y));
      back_btn.press(down && back_btn.contains(pixel_x, pixel_y));

      if (back_btn.justReleased())
        back_btn.drawButton();
      if (on_btn.justReleased())
        on_btn.drawButton();
      if (off_btn.justReleased())
        off_btn.drawButton();

      if (back_btn.justPressed()) {
        back_btn.drawButton(true);
        currentPage = MENU;
      }
      if (on_btn.justPressed()) {
        on_btn.drawButton(true);
        tft.fillRect(tft.width() / 2. - (btnWidth + 40) / 2, btnY - 4 * margin - (btnHeight) / 2 - (btnHeight + 40), btnWidth + 40, btnHeight + 40, GREEN);
        Serial.println(F("Set ON"));
      }
      if (off_btn.justPressed()) {
        off_btn.drawButton(true);
        tft.fillRect(tft.width() / 2. - (btnWidth + 40) / 2, btnY - 4 * margin - (btnHeight) / 2 - (btnHeight + 40), btnWidth + 40, btnHeight + 40, RED);
        Serial.println(F("Set OFF"));
      }
      break;

    case PARAM: //consigne
      if (currentPage != oldPage)   drawParamScreen();
      plus_btn.press(down && plus_btn.contains(pixel_x, pixel_y));
      minus_btn.press(down && minus_btn.contains(pixel_x, pixel_y));
      ok_btn.press(down && ok_btn.contains(pixel_x, pixel_y));
      cncl_btn.press(down && cncl_btn.contains(pixel_x, pixel_y));

      if (plus_btn.justReleased())
        plus_btn.drawButton();
      if (minus_btn.justReleased())
        minus_btn.drawButton();

      if (ok_btn.justReleased())
        ok_btn.drawButton();
      if (cncl_btn.justReleased())
        cncl_btn.drawButton();
      if (plus_btn.justPressed()) {
        plus_btn.drawButton(true);
        parameter += 1;
        Serial.print(F("Consigne : "));
        Serial.println(parameter);

        drawTextInRect(tft.width() / 2., 60 + 3 * 4 + 6 * 8, parameter, 4, RED, BLACK);
      }
      if (minus_btn.justPressed()) {
        minus_btn.drawButton(true);
        parameter -= 1;
        Serial.print(F("Consigne : "));
        Serial.println(parameter);

        drawTextInRect(tft.width() / 2., 60 + 3 * 4 + 6 * 8, parameter, 4, RED, BLACK);
      }

      if (ok_btn.justPressed()) {
        ok_btn.drawButton(true);
        Serial.println(F("Valider"));
        validateScreen();
        delay(1000);
        currentPage = MENU;

      }
      if (cncl_btn.justPressed()) {
        cncl_btn.drawButton(true);
        parameter = old_parameter;
        Serial.println(F("Annule "));
        cancelScreen();
        delay(1000);
        currentPage = MENU;
      }
      break;

    case INFO:
      if (currentPage != oldPage) drawInfoScreen();
      if (Touch_getXY()) {
        currentPage = MENU;
      }
      break;
  }
  if (oldPage == currentPage){
    down = Touch_getXY();
  }else{
    down=false;
  }
}

/************************************************************************************
    SCREENS DEFINTION
 ************************************************************************************/
void drawMenuScreen() {
  tft.fillScreen(BLACK);
  tft.setTextSize(2);

  // Title
  tft.setTextColor(WHITE, BLACK);
  tft.setCursor(0, 10);
  tft.print("Exemple de menu"); // Prints the string on the screen
  tft.drawLine(0, 32, tft.width() * 0.6, 32, DARKGREEN); // Draws the red line
  tft.setTextColor(WHITE, BLACK);//((255, 255, 255), (0,0,0));
  tft.setCursor(0, 80);
  tft.setTextColor(GREEN, BLACK);//((255, 255, 255), (0,0,0));

  // Button
  page1_btn.initButton(&tft,  tft.width() / 2. , tft.height() / 2. - (1.*btnHeight + margin), 2 * btnWidth, btnHeight, WHITE, GREEN, BLACK, "SENSOR", 2);
  page2_btn.initButton(&tft, tft.width() / 2., tft.height() / 2., 2 * btnWidth, btnHeight, WHITE, GREEN, BLACK, "COMMAND", 2);
  page3_btn.initButton(&tft, tft.width() / 2., tft.height() / 2. + (1.*btnHeight + margin), 2 * btnWidth, btnHeight, WHITE, GREEN, BLACK, "PARAMETER", 2);
  page1_btn.drawButton(false);
  page2_btn.drawButton(false);
  page3_btn.drawButton(false);

  //Button frame
  tft.drawRoundRect(tft.width() / 2. - 1.5 * btnWidth, tft.height() / 2. - (1.5 * btnHeight + 2 * margin), 2 * btnWidth + btnWidth, 3 * btnHeight + 4 * margin, 10, GREEN);
  oldPage = currentPage;
}

void readSensor() {
  temp0 = temp0 + random(-25, 25) / 10;
  temp1 = temp1 + random(-25, 25) / 10;
  temp2 = temp2 + random(-25, 25) / 10;
  temp3 = temp3 + random(-25, 25) / 10;
}

void drawSensorScreen() {
  tft.fillScreen(BLACK);

  tft.drawLine(tft.width() / 2., 0, tft.width() / 2., tft.height(), WHITE);
  tft.drawLine(0, tft.height() / 2., tft.width(), tft.height() / 2., WHITE);

  updateTemp();

  tft.setTextSize(1);
  // bouton centré X,Y
  menu_btn.initButton(&tft,  tft.width() / 2. - btnWidth - margin , tft.height() - btnHeight / 2., btnWidth, btnHeight, WHITE, GREY, BLACK, "MENU", 2);
  info_btn.initButton(&tft, tft.width() / 2. + btnWidth + margin, tft.height() - btnHeight / 2., btnWidth, btnHeight, WHITE, GREY, BLACK, "INFO", 2);
  menu_btn.drawButton(false);
  info_btn.drawButton(false);

  oldPage = currentPage;
}

void updateTemp() {
  //temp1
  if (parameter < temp0) { //(abs(parameter-temp0)<1){
    drawTextInRect(tft.width() / 4., tft.height() / 4., temp0, 5, GREEN, 255);
  } else {
    drawTextInRect(tft.width() / 4., tft.height() / 4., temp0, 5, RED, 255);
  }
  drawTextInRect(3 * tft.width() / 4., tft.height() / 4., temp1, 5, RED, 255);
  drawTextInRect(tft.width() / 4., 3 * tft.height() / 4., temp2, 5, RED, 255);
  drawTextInRect(3 * tft.width() / 4., 3 * tft.height() / 4., temp3, 5, RED, 255);
}

void drawCmdScreen() {
  tft.setRotation(1);            //PORTRAIT
  tft.setTextSize(1);
  tft.fillScreen(BLACK);

  back_btn.initButton(&tft,  60 , 20, btnWidth, btnHeight, BLACK, BLACK, WHITE, "<- Back", 2);

  // bouton centré X,Y
  on_btn.initButton(&tft,  tft.width() / 2. - btnWidth / 2. , btnY, btnWidth, btnHeight, WHITE, GREEN, BLACK, "ON", 2);
  off_btn.initButton(&tft, tft.width() / 2. + btnWidth / 2. + margin, btnY, btnWidth, btnHeight, WHITE, RED, BLACK, "OFF", 2);
  back_btn.drawButton(false);
  on_btn.drawButton(false);
  off_btn.drawButton(false);
  tft.fillRect(tft.width() / 2. - (btnWidth + 40) / 2, btnY - 4 * margin - (btnHeight) / 2 - (btnHeight + 40), btnWidth + 40, btnHeight + 40, RED);
  oldPage = currentPage;
}

void validateScreen() {
  tft.setRotation(1);
  tft.fillScreen(BLACK);
  tft.setTextSize(5);
  tft.setTextColor(BLACK, GREEN);
  tft.setCursor(tft.width() / 2. - 6 * 6 * 4, tft.height() / 2. - 1 * 6);
  tft.print(" VALIDE ");
}

void cancelScreen() {
  tft.setRotation(1);
  tft.fillScreen(BLACK);
  tft.setTextSize(5);
  tft.setTextColor(BLACK, RED);
  tft.setCursor(tft.width() / 2. - 6 * 6 * 4, tft.height() / 2. - 1 * 6);
  tft.print(" ANNULE ");
}

void drawParamScreen() {
  tft.setRotation(1);
  tft.fillScreen(BLACK);
  //Title
  tft.setTextSize(3);
  tft.setTextColor(WHITE, BLACK);
  tft.setCursor(tft.width() / 2. - 9 * 3 * 3, 50);
  tft.print("Parameter");

  ok_btn.initButton(&tft,  2 + btnWidth / 2., btnHeight / 2. + margin, btnWidth, btnHeight, WHITE, DARKGREEN, BLACK, "Valider", 2);
  cncl_btn.initButton(&tft, tft.width() - btnWidth / 2 - 2, btnHeight / 2. + margin, btnWidth, btnHeight, WHITE, RED, BLACK, "Annuler", 2);
  ok_btn.drawButton(false);
  cncl_btn.drawButton(false);

  drawTextInRect(tft.width() / 2., 60 + 3 * 4 + 6 * 8, parameter, 4, RED, BLACK);
  plus_btn.initButton(&tft,  tft.width() / 2. - btnWidth / 2. , 60 + 3 * 4 + 6 * 8 + (btnWidth - 30), btnWidth - 20, btnWidth - 30, WHITE, GREEN, BLACK, "+", 5);
  minus_btn.initButton(&tft, tft.width() / 2. + btnWidth / 2. + margin, 60 + 3 * 4 + 6 * 8 + (btnWidth - 30), btnWidth - 20, btnWidth - 30, WHITE, GREEN, BLACK, "-", 5);
  plus_btn.drawButton(false);
  minus_btn.drawButton(false);
  oldPage = currentPage;
}

void drawInfoScreen() {
  tft.setRotation(1); 
  tft.fillScreen(BLACK);//(100, 155, 203)
  tft.drawRoundRect(10, 50, tft.width() - 20, tft.height() - 60, 5, GREEN); //tft.fillRect (10, 10, 60, 36);
  tft.setTextSize(2);
  tft.setTextColor(WHITE, BLACK);
  tft.setCursor(70, 18);
  tft.print("Information sur l'exemple");
  tft.setTextSize(2);
  tft.setTextColor(WHITE, BLACK);
  tft.setCursor(25, 80);
  tft.print("En cas de probleme avec ce tutoriel,\n  n'hesitez pas a nous contacter");
  tft.setCursor(20, 245);
  tft.print("www.aranacorp.com" );
  oldPage = currentPage;
}


/************************************************************************************
    UTILITY FUNCTION
*************************************************************************************/

void drawTextInRect(int x, int y, long temp, int tsize, unsigned int fColor, unsigned int bColor) {
  int marg = 10;
  char buf[12];
  int nbChar = strlen(itoa(temp, buf, 10)) + 2;
  if (bColor != 255) tft.fillRect(x - nbChar * 3 * tsize - marg, y - nbChar * 1 * tsize - marg, nbChar * 6 * tsize + 2 * marg, nbChar * 2 * tsize + 2 * marg, bColor);
  tft.setTextSize(tsize);
  tft.setTextColor(fColor, BLACK);
  //tft.setCursor(x-strlen(*text)*3*tsize+marg, y+rheight/2.+marg);
  tft.setCursor(x - nbChar * 3 * tsize, y - nbChar * 1 * tsize);
  tft.print(temp);
  //while(*text) tft.print(*text++);
  tft.write(0xF7);
  tft.print("C");
}

bool Touch_getXY(void)
{
  p = ts.getPoint();
  pinMode(YP, OUTPUT);      //restore shared pins
  pinMode(XM, OUTPUT);
  digitalWrite(YP, HIGH);
  digitalWrite(XM, HIGH);
  bool pressed = (p.z > MINPRESSURE && p.z < MAXPRESSURE);
  if (pressed) {
    if (tft.width() <= tft.height()) { //Portrait
      pixel_x = map(p.x, TS_LEFT, TS_RT, 0, tft.width()); //.kbv makes sense to me
      pixel_y = map(p.y, TS_TOP, TS_BOT, 0, tft.height());
    } else {
      pixel_x = map(p.y, TS_TOP, TS_BOT, 0, tft.width());
      pixel_y = map(p.x, TS_RT, TS_LEFT, 0, tft.height());
    }
  }
  return pressed;
}

Aplicaciones

  • Crear una interfaz gráfica para impulsar su proyecto Arduino

Fuentes

Encuentre otros tutoriales y ejemplos en el generador de código automático
Arquitecto de Código

¿De cuánta utilidad te ha parecido este contenido?

¡Haz clic en una estrella para puntuarlo!

Promedio de puntuación 5 / 5. Recuento de votos: 11

Hasta ahora, ¡no hay votos!. Sé el primero en puntuar este contenido.

Ya que has encontrado útil este contenido...

¡Sígueme en los medios sociales!

¡Siento que este contenido no te haya sido útil!

¡Déjame mejorar este contenido!

Dime, ¿cómo puedo mejorar este contenido?