A0

LCD_RD

A1

LCD_WR / TS_YP

A2

LCD_RS / TS_XM

A3

LCD_CS

A4

LCD_RST

D8

LCD_D0

D9

LCD_D1

D2

LCD_D2

D3

LCD_D3

D4

LCD_D4

D5

LCD_D5

D6

LCD_D6 / TS_XP

D7

LCD_D7 / TS_YM

D8

SD_SS

D9

SD_DI

D10

SD_DO

D11

SD_SCK

#include "TFTLCD.h"

#include "TouchScreen.h"

//Duemilanove/Diecimila/UNO/etc ('168 and '328 chips) microcontoller:

#define YP A1  // must be an analog pin, use "An" notation!

#define XM A2  // must be an analog pin, use "An" notation!

#define YM 7   // can be a digital pin

#define XP 6   // 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

// Color definitions

#define      BLACK           0x0000

#define      BLUE            0x001F

#define      RED             0xF800

#define      GREEN           0x07E0

#define        CYAN            0x07FF

#define       MAGENTA         0xF81F

#define       YELLOW          0xFFE0

#define       WHITE           0xFFFF

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("Paint!");

  tft.reset();

  /*

  uint16_t identifier = tft.readRegister(0x0);

  if (identifier == 0x9325) {

    Serial.println("Found ILI9325");

  } else if (identifier == 0x9328) {

    Serial.println("Found ILI9328");

  } else {

    Serial.print("Unknown driver chip ");

    Serial.println(identifier, HEX);

    while (1);

  }

*/

  tft.initDisplay();

  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.drawRect(0, 0, BOXSIZE, BOXSIZE, WHITE);

 currentcolor = RED;

  pinMode(13, OUTPUT);

}

#define MINPRESSURE 10

#define MAXPRESSURE 1000

void loop()

{

  digitalWrite(13, HIGH);

  Point p = ts.getPoint();

  digitalWrite(13, LOW);

  pinMode(XM, OUTPUT);

  pinMode(YP, OUTPUT);

  // we have some minimum pressure we consider 'valid'

  // pressure of 0 means no pressing!

  if (p.z > MINPRESSURE && p.z < MAXPRESSURE) {

    // turn from 0->1023 to tft.width

    p.x = tft.height() - map(p.x, TS_MINX, TS_MAXX, 0, tft.height());

    p.y = tft.width() - map(p.y, TS_MINY, TS_MAXY, 0, tft.width());

    Serial.print(p.x, DEC);

    Serial.print("\t");

    Serial.println(p.y, DEC);

    if (p.x < BOXSIZE) {

       oldcolor = currentcolor;

       if (p.y < BOXSIZE) {

         currentcolor = RED;

         tft.drawRect(0, 0, BOXSIZE, BOXSIZE, WHITE);

       }

       else if (p.y < BOXSIZE*2) {

         currentcolor = YELLOW;

         tft.drawRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, WHITE);

       }

       else if (p.y < BOXSIZE*3) {

         currentcolor = GREEN;

         tft.drawRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, WHITE);

       }

       else if (p.y < BOXSIZE*4) {

         currentcolor = CYAN;

         tft.drawRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, WHITE);

       }

       else if (p.y < BOXSIZE*5) {

         currentcolor = BLUE;

         tft.drawRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, WHITE);

       }

       else if (p.y < 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.x-PENRADIUS) > BOXSIZE) && ((p.x+PENRADIUS) < tft.height())) {

      tft.fillRect(p.y, p.x, PENRADIUS, PENRADIUS, currentcolor);

    }

  }

}