first commit

TFT_ESSAI/TFT_ESSAI.ino

@@ -0,0 +1,145 @@
+//Analog Clock Sketch created by Embedded Downloads LTD
+//To view the full tutorial go to www.embeddeddownloads.com
+#include <Adafruit_GFX_AS.h>    // Core graphics library
+#include <Adafruit_ILI9341_8bit_AS.h>// Hardware-specific library
+#include <TouchScreen.h>
+
+// The control pins for the LCD can be assigned to any digital or
+// analog pins...but we'll use the analog pins as this allows us to
+// double up the pins with the touch screen (see the tft paint example).
+#define LCD_CS A3 // Chip Select goes to Analog 3
+#define LCD_CD A2 // Command/Data goes to Analog 2
+#define LCD_WR A1 // LCD Write goes to Analog 1
+#define LCD_RD A0 // LCD Read goes to Analog 0
+
+#define LCD_RESET A4 // Can alternately just connect to Arduino's reset pin
+
+// 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).
+
+// These are the pins for the shield!
+#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 MINPRESSURE 10
+#define MAXPRESSURE 1000
+
+// 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);
+
+// 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_ILI9341_8bit_AS tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);
+
+int x = 0;
+int y = 0;
+
+void setup() {
+  Serial.begin(9600);
+  tft.reset();
+  delay(10);
+  tft.begin(0x9341);
+  uint16_t identifier = tft.readID(); 
+  
+  Serial.println(identifier, HEX);
+   tft.fillScreen(BLACK);
+   
+     Serial.println("tft LCD test");
+  Serial.print("tft size is ");
+  Serial.print(tft.width());
+  Serial.print("x");
+  Serial.println(tft.height());
+  
+  tft.fillCircle(120, 160, 10, BLUE);
+}
+ 
+void loop(void) {
+  int           x1, y1, x2, y2,
+                w = tft.width(),
+                h = tft.height();
+//  // a point object holds x y and z coordinates
+//  TSPoint p = ts.getPoint();
+//  
+//  // 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);
+//     
+//   tft.reset();   
+//  delay(10);
+//  tft.begin(0x9341);  
+//  tft.fillScreen(BLACK);
+////    
+////    
+//    tft.fillCircle(50, 50, 10, RED);
+//  }
+
+  
+  delay(100);
+  
+  //tft.begin(0x9341);
+     testCircles(10, BLUE);
+     
+  
+}
+unsigned long testCircles(uint8_t radius, uint16_t color) {
+  unsigned long start;
+  int           x, y, r2 = radius * 2,
+                w = tft.width()  + radius,
+                h = tft.height() + radius;
+
+  // Screen is not cleared for this one -- this is
+  // intentional and does not affect the reported time.
+  start = micros();
+  tft.fillScreen(BLACK);
+  for(x=0; x<w; x+=r2) {
+    for(y=0; y<h; y+=r2) {
+      // tft.fillScreen(BLACK);
+      tft.drawCircle(x, y, radius, color);
+    }
+  }
+  delay(1000);
+  tft.fillRect(0,11,140,11,WHITE);
+    tft.fillRect(0,43,140,11,WHITE);
+    tft.fillRect(0,59,140,11,WHITE);
+    tft.fillRect(0,75,140,11,WHITE);
+    tft.fillRect(0,107,140,11,WHITE);
+    tft.fillRect(0,123,140,11,WHITE);
+    tft.fillRect(0,155,140,11,WHITE);
+    tft.fillRect(0,171,140,11,WHITE);
+    tft.fillRect(0,187,140,11,WHITE);
+    tft.fillRect(0,219,140,11,WHITE);
+    tft.fillRect(0,235,140,11,WHITE);
+    tft.fillRect(0,267,140,11,WHITE);
+    tft.fillRect(0,283,140,11,WHITE);
+    tft.fillRect(0,299,140,11,WHITE);
+delay(1000);
+  return micros() - start;
+}
+