[armata165]

witam 
do prawidłowego działania  lcd_id_reader potrzeba w liniach define podstawić te z kodu poniżęj

Kod:

// Paint example specifically for the TFTLCD breakout board.
// If using the Arduino shield, use the tftpaint_shield.pde sketch instead!
// DOES NOT CURRENTLY WORK ON ARDUINO LEONARDO

#include <Adafruit_GFX.h>    // Core graphics library
#include <Adafruit_TFTLCD.h> // Hardware-specific library
#include <TouchScreen.h>

#if defined(__SAM3X8E__)
   #undef __FlashStringHelper::F(string_literal)
   #define F(string_literal) string_literal
#endif

// When using the BREAKOUT BOARD only, use these 8 data lines to the LCD:
// For the Arduino Uno, Duemilanove, Diecimila, etc.:
//   D0 connects to digital pin 8  (Notice these are
//   D1 connects to digital pin 9   NOT in order!)
//   D2 connects to digital pin 2
//   D3 connects to digital pin 3
//   D4 connects to digital pin 4
//   D5 connects to digital pin 5
//   D6 connects to digital pin 6
//   D7 connects to digital pin 7

// For the Arduino Mega, use digital pins 22 through 29
// (on the 2-row header at the end of the board).
//   D0 connects to digital pin 22
//   D1 connects to digital pin 23
//   D2 connects to digital pin 24
//   D3 connects to digital pin 25
//   D4 connects to digital pin 26
//   D5 connects to digital pin 27
//   D6 connects to digital pin 28
//   D7 connects to digital pin 29

// For the Arduino Due, use digital pins 33 through 40
// (on the 2-row header at the end of the board).
//   D0 connects to digital pin 33
//   D1 connects to digital pin 34
//   D2 connects to digital pin 35
//   D3 connects to digital pin 36
//   D4 connects to digital pin 37
//   D5 connects to digital pin 38
//   D6 connects to digital pin 39
//   D7 connects to digital pin 40

#define YP A3  // must be an analog pin, use "An" notation!
#define XM A2  // must be an analog pin, use "An" notation!
#define YM 9   // can be a digital pin
#define XP 8   // can be a digital pin

#define TS_MINX 150
#define TS_MINY 120
#define TS_MAXX 920
#define TS_MAXY 940

// For better pressure precision, we need to know the resistance
// between X+ and X- Use any multimeter to read it
// For the one we're using, its 300 ohms across the X plate
TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);

#define LCD_CS A3
#define LCD_CD A2
#define LCD_WR A1
#define LCD_RD A0
// optional
#define LCD_RESET A4

// Assign human-readable names to some common 16-bit color values:
#define    BLACK   0x0000
#define    BLUE    0x001F
#define    RED     0xF800
#define    GREEN   0x07E0
#define CYAN    0x07FF
#define MAGENTA 0xF81F
#define YELLOW  0xFFE0
#define WHITE   0xFFFF


Adafruit_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);

#define BOXSIZE 40
#define PENRADIUS 3
int oldcolor, currentcolor;

void setup(void) {
 Serial.begin(9600);
 Serial.println(F("Paint!"));
 
 tft.reset();
 
 uint16_t identifier = tft.readID();

 if(identifier == 0x9325) {
   Serial.println(F("Found ILI9325 LCD driver"));
 } else if(identifier == 0x9328) {
   Serial.println(F("Found ILI9328 LCD driver"));
 } else if(identifier == 0x7575) {
   Serial.println(F("Found HX8347G LCD driver"));
 } else if(identifier == 0x9341) {
   Serial.println(F("Found ILI9341 LCD driver"));
 } else if(identifier == 0x8357) {
   Serial.println(F("Found HX8357D LCD driver"));
 } else {
   Serial.print(F("Unknown LCD driver chip: "));
   Serial.println(identifier, HEX);
   Serial.println(F("If using the Adafruit 2.8\" TFT Arduino shield, the line:"));
   Serial.println(F("  #define USE_ADAFRUIT_SHIELD_PINOUT"));
   Serial.println(F("should appear in the library header (Adafruit_TFT.h)."));
   Serial.println(F("If using the breakout board, it should NOT be #defined!"));
   Serial.println(F("Also if using the breakout, double-check that all wiring"));
   Serial.println(F("matches the tutorial."));
   return;
 }

 tft.begin(identifier);

 tft.fillScreen(BLACK);

 tft.fillRect(0, 0, BOXSIZE, BOXSIZE, RED);
 tft.fillRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, YELLOW);
 tft.fillRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, GREEN);
 tft.fillRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, CYAN);
 tft.fillRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, BLUE);
 tft.fillRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, MAGENTA);
 // tft.fillRect(BOXSIZE*6, 0, BOXSIZE, BOXSIZE, WHITE);

 tft.drawRect(0, 0, BOXSIZE, BOXSIZE, WHITE);
 currentcolor = RED;

 pinMode(13, OUTPUT);
}

#define MINPRESSURE 10
#define MAXPRESSURE 1000

void loop()
{
 digitalWrite(13, HIGH);
 TSPoint p = ts.getPoint();
 digitalWrite(13, LOW);

 // if sharing pins, you'll need to fix the directions of the touchscreen pins
 //pinMode(XP, OUTPUT);
 pinMode(XM, OUTPUT);
 pinMode(YP, OUTPUT);
 //pinMode(YM, OUTPUT);

 // we have some minimum pressure we consider 'valid'
 // pressure of 0 means no pressing!

 if (p.z > MINPRESSURE && p.z < MAXPRESSURE) {
   /*
   Serial.print("X = "); Serial.print(p.x);
   Serial.print("\tY = "); Serial.print(p.y);
   Serial.print("\tPressure = "); Serial.println(p.z);
   */
   
   if (p.y < (TS_MINY-5)) {
     Serial.println("erase");
     // press the bottom of the screen to erase
     tft.fillRect(0, BOXSIZE, tft.width(), tft.height()-BOXSIZE, BLACK);
   }
   // scale from 0->1023 to tft.width
   p.x = map(p.x, TS_MINX, TS_MAXX, tft.width(), 0);
   p.y = map(p.y, TS_MINY, TS_MAXY, tft.height(), 0);
   /*
   Serial.print("("); Serial.print(p.x);
   Serial.print(", "); Serial.print(p.y);
   Serial.println(")");
   */
   if (p.y < BOXSIZE) {
      oldcolor = currentcolor;

      if (p.x < BOXSIZE) {
        currentcolor = RED;
        tft.drawRect(0, 0, BOXSIZE, BOXSIZE, WHITE);
      } else if (p.x < BOXSIZE*2) {
        currentcolor = YELLOW;
        tft.drawRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, WHITE);
      } else if (p.x < BOXSIZE*3) {
        currentcolor = GREEN;
        tft.drawRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, WHITE);
      } else if (p.x < BOXSIZE*4) {
        currentcolor = CYAN;
        tft.drawRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, WHITE);
      } else if (p.x < BOXSIZE*5) {
        currentcolor = BLUE;
        tft.drawRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, WHITE);
      } else if (p.x < BOXSIZE*6) {
        currentcolor = MAGENTA;
        tft.drawRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, WHITE);
      }

      if (oldcolor != currentcolor) {
         if (oldcolor == RED) tft.fillRect(0, 0, BOXSIZE, BOXSIZE, RED);
         if (oldcolor == YELLOW) tft.fillRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, YELLOW);
         if (oldcolor == GREEN) tft.fillRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, GREEN);
         if (oldcolor == CYAN) tft.fillRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, CYAN);
         if (oldcolor == BLUE) tft.fillRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, BLUE);
         if (oldcolor == MAGENTA) tft.fillRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, MAGENTA);
      }
   }
   if (((p.y-PENRADIUS) > BOXSIZE) && ((p.y+PENRADIUS) < tft.height())) {
     tft.fillCircle(p.x, p.y, PENRADIUS, currentcolor);
   }
 }
}

Ten kod też możesz wykorzystać. Pinologia do mega jest zaznaczona.

Pozdrawiam i powodzenia