Diff: main.cpp

Revision:

1:daf38bb2801e

Parent:

0:f38492690f0e

--- a/main.cpp	Wed Mar 12 18:41:42 2014 +0000
+++ b/main.cpp	Tue Mar 17 06:17:13 2015 +0000
@@ -1,180 +1,135 @@
 /*
  * Adafruit NeoPixel 8x8 matrix example
  *
- * This program displays a couple simple patterns on an 8x8 NeoPixel matrix.
+ * This program demonstrates the functions from the NeoArray library by creating sample patterns on a NeoPixel NeoMatrix 8x8 array
  *
- * 3 buttons are used for DigitalIns, 2 control the brightness up and down,
- * and the third switches patterns
  */
 
 #include "mbed.h"
-#include "NeoStrip.h"
-#include "gt.h"
+#include "NeoMatrix.h"
 
-#define N 64
-#define PATTERNS 3
-
-int hueToRGB(float h);
-void pattern0();
-void pattern1();
-void pattern2();
+#define Color(r, g, b)  ((r&0xFF)<<16 | (g&0xFF) << 8 | (b&0xFF))   // pack colors
 
-// array of function pointers to the various patterns
-void (*patterns[])(void) = {&pattern0, &pattern1, &pattern2};
+#define Red     (Color(255,0,0))
+#define Green   (Color(0,255,0))
+#define Blue    (Color(0,0,255))
 
-NeoStrip strip(p18, N);
-DigitalIn b1(p20); // brightness up
-DigitalIn b2(p19); // brightness down
-DigitalIn b3(p21); // next pattern
-
-// timer used for debugging
-Timer timer;
+NeoArr array(p18, 1);   // Initialize the array
 
 int main()
 {
-	b1.mode(PullDown);
-	b2.mode(PullDown);
-	b3.mode(PullDown);
-	
-	int pattern = 0;
-	float bright = 0.2;	// 20% is plenty for indoor use
-	bool b3o = b3;		// old copy of button 3 to poll for changes
-
-	strip.setBrightness(bright);	// set default brightness
-	
-	while (true)
-	{
-		timer.reset(); // use a timer to measure loop execution time for debugging purposes
-		timer.start(); // for this application, the main loop takes approximately 3ms to run
-
-		// button 1 increases brightness
-		if (b1 && bright < 1)
-		{
-			bright += 0.01;
-			if (bright > 1)
-				bright = 1;
-			strip.setBrightness(bright);
-		}
+    
+    float bright = 0.2; // 20% is bright enough for most indoor use and should run without need for external power
 
-		// button 2 decreases brightness
-		if (b2 && bright > 0)
-		{
-			bright -= 0.01;
-			if (bright < 0)
-				bright = 0;
-			strip.setBrightness(bright);
-		}
-		
-		// button 3 changes the pattern, only do stuff when its state has changed
-		if (b3 != b3o)
-		{
-			if (b3 && ++pattern == PATTERNS)
-				pattern = 0;
-			b3o = b3;
-		}
-		
-		// run the pattern update function which sets the strip's pixels
-		patterns[pattern]();
-		strip.write();
-
-		timer.stop();
-		// print loop time if b3 is pressed
-		if (b3)
-			printf("Loop Time: %dus\n", timer.read_us());
-		
-		wait_ms(10);
-	}
-}
-
-// pattern0 displays a static image
-void pattern0()
-{
-	strip.setPixels(0, N, gt_img);
+    array.setBrightness(bright);    // set brightness to default 0.2
+    array.clear();
+    
+    while (true)
+    {
+        // Horrizontal scroll x y z
+        for(char c = 'x'; c <= 'z'; c++)
+            for(int i=7;i>=-6;i--){
+                array.clear();
+                array.drawChar(0,i,0,c, 255,255,255);
+                array.write();
+                wait_ms(100);
+                }
+                
+        // Fill screen with gradient of colors
+        for(int n = 0; n<=255; n++){
+            array.fillScreen(0,n,0,255-n);
+            array.write();
+            wait_ms(5);
+            }
+        for(int n = 0; n<=255; n++){
+            array.fillScreen(0,255-n,n,0);
+            array.write();
+            wait_ms(5);
+            }
+        for(int n = 0; n<=255; n++){
+            array.fillScreen(0,0,255-n,n);
+            array.write();
+            wait_ms(5);
+            }
+            
+        // Vertical scroll A B C
+        for(char c = 'A'; c <= 'C'; c++)
+            for(int i=8;i>=-8;i--){
+                array.clear();
+                array.drawChar(0,1,i,c, 255,255,255);
+                array.write();
+                wait_ms(100);
+                }
+            
+        // Alternating Checkerboard
+        for(int n=0; n<7; n++){
+            for(int i=-8; i<8; i+=2){
+                    array.drawLine(0, i+n%2,0,i+7+n%2,7,0,255,0);
+                    }
+                array.write();
+                array.clear();
+                wait_ms(500);
+                }
+            
+        // Red and green pinwheel
+        for(int i=0; i<8; i++){
+            array.clear();
+            array.drawLine(0,i,0,7-i,7,Red);
+            array.drawLine(0,7,i,0,7-i,Green);
+            array.write();
+            wait_ms(100);
+            }
+        for(int i=1; i<=6; i++){
+            array.clear();
+            array.drawLine(0,7,i,0,7-i,Red);
+            array.drawLine(0,i,0,7-i,7,Green);
+            array.write();
+            wait_ms(100);
+            }
+            
+        // Shrink and grow blue rectangle
+        for(int i=0; i<4; i++){
+            array.clear();
+            array.drawFilledRect(0,i,i,7-i,7-i,Blue);
+            array.write();
+            wait_ms(250);
+            }
+        for(int i=0; i<4; i++){
+            array.clear();
+            array.drawRect(0,3-i,3-i,4+i,4+i,Blue);
+            array.write();
+            wait_ms(250);
+            }
+            
+        // Move purple triangle
+        for(int i=7; i>=0; i--){
+            array.clear();
+            array.drawTriangle(0,i,i,0,7,7,0, 255,0,255);
+            array.write();
+            wait_ms(125);
+            }
+            
+        // Rotate purple triangle
+        for(int i=0; i<8; i++){
+            array.clear();
+            array.drawFilledTriangle(0,i,0,0,7-i,7,i, 255,0,255);
+            array.write();
+            wait_ms(250);
+            }
+     
+        // Diangonal Rainbow Scroll
+        for(int i=-1;i<=8;i++){
+            for(int n=-18; n<=6; n+=6){
+                array.drawLine(0,n+i,0,n+i+7,7, 255,0,0);
+                array.drawLine(0,n+i+1,0,n+i+8,7, 255,255,0);
+                array.drawLine(0,n+i+2,0,n+i+9,7, 0,255,0);
+                array.drawLine(0,n+i+3,0,n+i+10,7, 0,255,255);
+                array.drawLine(0,n+i+4,0,n+i+11,7, 0,0,255);
+                array.drawLine(0,n+i+5,0,n+i+12,7, 255,0,255);
+                }
+            array.write();
+            wait_ms(200);
+           }
+    }
 }
 
-// display a shifting rainbow, all colors have maximum
-// saturation and value, with evenly spaced hue
-void pattern1()
-{
-	static float dh = 360.0 / N;
-	static float x = 0;
-
-	for (int i = 0; i < N; i++)
-		strip.setPixel(i, hueToRGB((dh * i) - x));
-	
-	x += 1;
-	if (x > 360)
-		x = 0;
-}
-
-// display a shifting gradient between red and blue
-void pattern2()
-{
-	// offset for each pixel to allow the pattern to move
-	static float x = 0;
-
-	float r, b, y;
-
-	for (int i = 0; i < N; i++)
-	{
-		// y is a scaled position between 0 (red) and 1.0 (blue)
-		y = 1.0 * i / (N - 1) + x;
-		if (y > 1)
-			y -= 1;
-
-		// if on the left half, red is decreasing and blue is increasng
-		if (y < 0.5)
-		{
-			b = 2 * y;
-			r = 1 - b;
-		}
-
-		// else red is increasing and blue is decreasing
-		else
-		{
-			r = 2 * (y - 0.5);
-			b = 1 - r;
-		}
-
-		// scale to integers and set the pixel
-		strip.setPixel(i, (uint8_t)(r * 255), 0, (uint8_t)(b * 200));
-	}
-
-	x += 0.003;
-	if (x > 1)
-		x = 0;
-}
-
-// Converts HSV to RGB with the given hue, assuming
-// maximum saturation and value
-int hueToRGB(float h)
-{
-	// lots of floating point magic from the internet and scratching my head
-	float r, g, b;
-	if (h > 360)
-		h -= 360;
-	if (h < 0)
-		h += 360;
-	int i = (int)(h / 60.0);
-	float f = (h / 60.0) - i;
-	float q = 1 - f;
-	
-	switch (i % 6)
-	{
-		case 0: r = 1; g = f; b = 0; break;
-		case 1: r = q; g = 1; b = 0; break;
-		case 2: r = 0; g = 1; b = f; break;
-		case 3: r = 0; g = q; b = 1; break;
-		case 4: r = f; g = 0; b = 1; break;
-		case 5: r = 1; g = 0; b = q; break;
-		default: r = 0; g = 0; b = 0; break;
-	}
-	
-	// scale to integers and return the packed value
-	uint8_t R = (uint8_t)(r * 255);
-	uint8_t G = (uint8_t)(g * 255);
-	uint8_t B = (uint8_t)(b * 255);
-
-	return (R << 16) | (G << 8) | B;
-}
-