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TFT_TEST/TFT_TEST.ino

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+
+//#include "TFTLCD.h"
+#include "TouchScreen.h"
+
+#include <Adafruit_GFX.h>    // Core graphics library
+#include <SWTFT.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);
+
+
+ tft.initDisplay();
+ tft.fillScreen(BLACK);
+ 
+ tft.fillRect(0, 320-BOXSIZE, BOXSIZE, 320,MAGENTA );
+ tft.fillRect(BOXSIZE, 320-BOXSIZE, BOXSIZE, 320,BLUE );
+ tft.fillRect(BOXSIZE*2, 320-BOXSIZE, BOXSIZE, 320,CYAN );
+ tft.fillRect(BOXSIZE*3, 320-BOXSIZE, BOXSIZE, 320, GREEN);
+ tft.fillRect(BOXSIZE*4, 320-BOXSIZE, BOXSIZE, 320, YELLOW);
+ tft.fillRect(BOXSIZE*5, 320-BOXSIZE, BOXSIZE, 320, RED);
+// 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);
+ Point p = ts.getPoint();
+ digitalWrite(13, LOW);
+
+
+ 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) {
+
+   
+   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);
+     
+   }
+   // turn 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);
+
+   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,MAGENTA );
+   //      if (oldcolor == YELLOW) tft.fillRect(BOXSIZE, 0, BOXSIZE, BOXSIZE,BLUE );
+   //      if (oldcolor == GREEN) tft.fillRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE,CYAN );
+   //      if (oldcolor == CYAN) tft.fillRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, GREEN);
+   //      if (oldcolor == BLUE) tft.fillRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, YELLOW);
+   //      if (oldcolor == MAGENTA) tft.fillRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, RED);
+    //  }
+   }
+   if (((p.y-PENRADIUS) > BOXSIZE) && ((p.y+PENRADIUS) < tft.height())) {
+     tft.fillCircle(240-p.x, 320-p.y, PENRADIUS, currentcolor);
+   }
+ }
+}
+