add touchscreen calibration

Greenhouse.ino

@@ -1,6 +1,8 @@
 #include "SPI.h"
 #include "Adafruit_GFX.h"
 #include "Adafruit_TFTLCD.h"
+#include "Adafruit_ImageReader.h"
+#include <TouchScreen.h>
 #include <avr/power.h>
 #include <avr/sleep.h>
 #include <avr/wdt.h>
@@ -88,11 +90,25 @@ word pinA15 = A15;
 
 Adafruit_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, A0);
 
+#define YP A4  
+#define XM A5  
+#define YM 30   
+#define XP 31   
+
+#define TS_MINX 100
+#define TS_MINY 82
+#define TS_MAXX 812
+#define TS_MAXY 890
+
+TouchScreen ts = TouchScreen(XP, YP, XM, YM, 333);
+
+
 String outtext = "";
 String oldtext = "";
 boolean fastboot = false;
 boolean debug = true;
 
+Adafruit_Image img;
 // Plant logo
 static unsigned const char images_bits[] PROGMEM = {
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,