demo for mega

Author: ladyada

examples/testshapes_32x64/testshapes_32x64.ino

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+// testshapes demo for RGBmatrixPanel library.
+// Demonstrates the drawing abilities of the RGBmatrixPanel library.
+// For 32x32 RGB LED matrix.
+
+// NOTE THIS CAN ONLY BE USED ON A MEGA! NOT ENOUGH RAM ON UNO!
+
+#include <Adafruit_GFX.h>   // Core graphics library
+#include <RGBmatrixPanel.h> // Hardware-specific library
+
+// If your 32x32 matrix has the SINGLE HEADER input,
+// use this pinout:
+#define CLK 12  // MUST be on PORTB!
+#define OE  13
+#define LAT A0
+
+#define A   10
+#define B   A2
+#define C   11
+#define D   A1
+
+RGBmatrixPanel matrix(A, B, C, D, CLK, LAT, OE, false, 64);
+
+void setup() {
+
+  matrix.begin();
+  
+  // draw a pixel in solid white
+  matrix.drawPixel(0, 0, matrix.Color333(7, 7, 7)); 
+  delay(500);
+
+  // fix the screen with green
+  matrix.fillRect(0, 0, matrix.width(), matrix.height(), matrix.Color333(0, 7, 0));
+  delay(500);
+
+  // draw a box in yellow
+  matrix.drawRect(0, 0, matrix.width(), matrix.height(), matrix.Color333(7, 7, 0));
+  delay(500);
+  
+  // draw an 'X' in red
+  matrix.drawLine(0, 0, matrix.width()-1, matrix.height()-1, matrix.Color333(7, 0, 0));
+  matrix.drawLine(matrix.width()-1, 0, 0, matrix.height()-1, matrix.Color333(7, 0, 0));
+  delay(500);
+  
+  // draw a blue circle
+  matrix.drawCircle(10, 10, 10, matrix.Color333(0, 0, 7));
+  delay(500);
+  
+  // fill a violet circle
+  matrix.fillCircle(40, 21, 10, matrix.Color333(7, 0, 7));
+  delay(500);
+  
+  // fill the screen with 'black'
+  matrix.fillScreen(matrix.Color333(0, 0, 0));
+  
+  // draw some text!
+  matrix.setTextSize(1);     // size 1 == 8 pixels high
+  matrix.setTextWrap(false); // Don't wrap at end of line - will do ourselves
+
+  matrix.setCursor(8, 0);    // start at top left, with 8 pixel of spacing
+  uint8_t w = 0;
+  char *str = "AdafruitIndustries";
+  for (w=0; w<8; w++) {
+    matrix.setTextColor(Wheel(w));
+    matrix.print(str[w]);
+  }
+  matrix.setCursor(2, 8);    // next line
+  for (w=8; w<18; w++) {
+    matrix.setTextColor(Wheel(w));
+    matrix.print(str[w]);
+  }
+  matrix.println();
+  //matrix.setTextColor(matrix.Color333(4,4,4));
+  //matrix.println("Industries");
+  matrix.setTextColor(matrix.Color333(7,7,7));
+  matrix.println("LED MATRIX!");
+  
+  // print each letter with a rainbow color
+  matrix.setTextColor(matrix.Color333(7,0,0));
+  matrix.print('3');
+  matrix.setTextColor(matrix.Color333(7,4,0)); 
+  matrix.print('2');
+  matrix.setTextColor(matrix.Color333(7,7,0));
+  matrix.print('x');
+  matrix.setTextColor(matrix.Color333(4,7,0)); 
+  matrix.print('6');
+  matrix.setTextColor(matrix.Color333(0,7,0));  
+  matrix.print('4');
+  matrix.setCursor(34, 24);  
+  matrix.setTextColor(matrix.Color333(0,7,7)); 
+  matrix.print("*");
+  matrix.setTextColor(matrix.Color333(0,4,7)); 
+  matrix.print('R');
+  matrix.setTextColor(matrix.Color333(0,0,7));
+  matrix.print('G');
+  matrix.setTextColor(matrix.Color333(4,0,7)); 
+  matrix.print("B");
+  matrix.setTextColor(matrix.Color333(7,0,4)); 
+  matrix.println("*");
+
+
+  // whew!
+}
+
+void loop() {
+  // do nothing
+}
+
+
+// Input a value 0 to 24 to get a color value.
+// The colours are a transition r - g - b - back to r.
+uint16_t Wheel(byte WheelPos) {
+  if(WheelPos < 8) {
+   return matrix.Color333(7 - WheelPos, WheelPos, 0);
+  } else if(WheelPos < 16) {
+   WheelPos -= 8;
+   return matrix.Color333(0, 7-WheelPos, WheelPos);
+  } else {
+   WheelPos -= 16;
+   return matrix.Color333(0, WheelPos, 7 - WheelPos);
+  }
+}