David Rhodes
Library and demo using the WS2812-based Neopixel strip connected to an LPC114
Fork of
LEDTape_WS2812
by 
Suga koubou
Details here: http://mbed.org/users/rhodes42/notebook/tiny-neopixel-controller-with-lpc1114/
Revision 2:61abc599f31f, committed 2014-03-24
- Comitter:
- rhodes42
- Date:
- Mon Mar 24 10:00:54 2014 +0000
- Parent:
- 1:71b32479b674
- Child:
- 3:743570d993aa
- Commit message:
- Working demo shifting Red Green & Blue
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/LEDStripFunctions.cpp Mon Mar 24 10:00:54 2014 +0000
@@ -0,0 +1,54 @@
+#include "mbed.h"
+#include "LEDStrip.h"
+#include <stdint.h>
+
+
+void setAll(uint32_t *buffer, int n)
+{
+ int i;
+ for (i = 0; i < n; i++)
+ {
+ tapeSet(i, buffer[i]);
+ }
+}
+
+void setAllOneColor(uint32_t color, int n)
+{
+ int i;
+ for (i = 0; i < n; i++)
+ {
+ tapeSet(i, color);
+ }
+}
+
+void shiftAllFwd(uint32_t *buffer, int n)
+{
+ int i;
+ uint32_t temp = buffer[n];
+ for (i = n; i > 0; i--)
+ {
+ buffer[i] = buffer[i-1];
+ }
+ buffer[0] = temp;
+}
+
+void shiftAllRev(uint32_t *buffer, int n)
+{
+ int i;
+ uint32_t temp = buffer[0];
+ for (i = 0; i <= n-1; i++)
+ {
+ buffer[i] = buffer[i+1];
+ }
+ buffer[n] = temp;
+}
+
+
+void setEveryMod(uint32_t * buffer, uint32_t color, int mod, int start, int n)
+{
+ int i;
+ for (i = 0; i < n; i ++)
+ {
+ if ((i >= start) && ((i - start) % mod == 0)) buffer[i] = color;
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LEDStripFunctions.h Mon Mar 24 10:00:54 2014 +0000 @@ -0,0 +1,8 @@ + +#include <stdint.h> + +void setAll(uint32_t *buffer, int n); +void setAllOneColor(uint32_t color, int n); +void shiftAllFwd(uint32_t *buffer, int n); +void shiftAllRev(uint32_t *buffer, int n); +void setEveryMod(uint32_t * buffer, uint32_t color, int mod, int start, int n);
--- a/main.cpp Mon Mar 24 08:06:29 2014 +0000
+++ b/main.cpp Mon Mar 24 10:00:54 2014 +0000
@@ -4,6 +4,7 @@
#include "mbed.h"
#include "LEDStrip.h"
#include <stdint.h>
+#include "LEDStripFunctions.h"
//Serial pc(USBTX, USBRX);
DigitalOut led1(LED1), led2(LED2), led3(LED3), led4(LED4);
@@ -26,179 +27,37 @@
// pc.printf("led\r\n");
int color_on = (0xff << 16) | (0xff << 8) | (0xff);
+ uint32_t colors[numLEDs];
+ /*
+ for (k = 0; k < numLEDs; k++)
+ {
+ colors[k] = (k*260000);
+ }*/
+
+ setEveryMod(colors, 0xff, 3, 0, numLEDs);
+ setEveryMod(colors, (0xff<<8), 3, 1, numLEDs);
+ setEveryMod(colors, (0xff<<16), 3, 2, numLEDs);
+
+
for (;;) {
- // for (i = 0; i < 256; i ++) {
- led1 = 1;
+ led1 = 1;
- /*
- for(k = 0; k < 59; k += 2)
- {
- tapeSet(k, color_on);
- }
- for(k = 1; k < 59; k += 2)
- {
- tapeSet(k, 0);
- }
- tapeSend();
- led2 = 0;
- wait_ms(1000);
+
- for(k = 0; k < 59; k += 2)
- {
- tapeSet(k, 0);
- }
- for(k = 1; k < 59; k += 2)
- {
- tapeSet(k, color_on);
- }
- tapeSend();
- wait_ms(1000);
- */
-
- for(i = 0; i < 255; i++);
+ for(i = 0; i < 59; i++);
{
- color_on = (i << 16) | (i << 8) | (i);
- //led2 = 1;
- /*
- for(j = 0; j < numLEDs; j++);
- {
- tapeSet(j, color_on);
- }*/
- //tapeSet(k, 0);
- tapeSet(0,0);
- tapeSet(1,color_on);
- tapeSet(2,0);
- tapeSet(3,color_on);
- tapeSet(4,0);
- tapeSet(5,color_on);
- tapeSet(6,0);
- tapeSet(7,color_on);
- tapeSet(8,0);
- tapeSet(9,color_on);
- tapeSet(10,0);
- tapeSet(11,color_on);
- tapeSet(12,0);
- tapeSet(13,color_on);
- tapeSet(14,0);
- tapeSet(15,color_on);
- tapeSet(16,0);
- tapeSet(17,color_on);
- tapeSet(18,0);
- tapeSet(19,color_on);
- tapeSet(20,0);
- tapeSet(21,color_on);
- tapeSet(22,0);
- tapeSet(23,color_on);
- tapeSet(24,0);
- tapeSet(25,color_on);
- tapeSet(26,0);
- tapeSet(27,color_on);
- tapeSet(28,0);
- tapeSet(29,color_on);
- tapeSet(30,0);
- tapeSet(31,color_on);
- tapeSet(32,0);
- tapeSet(33,color_on);
- tapeSet(34,0);
- tapeSet(35,color_on);
- tapeSet(36,0);
- tapeSet(37,color_on);
- tapeSet(38,0);
- tapeSet(39,color_on);
- tapeSet(40,0);
- tapeSet(41,color_on);
- tapeSet(42,0);
- tapeSet(43,color_on);
- tapeSet(44,0);
- tapeSet(45,color_on);
- tapeSet(46,0);
- tapeSet(47,color_on);
- tapeSet(48,0);
- tapeSet(49,color_on);
- tapeSet(50,0);
- tapeSet(51,color_on);
- tapeSet(52,0);
- tapeSet(53,color_on);
- tapeSet(54,0);
- tapeSet(55,color_on);
- tapeSet(56,0);
- tapeSet(57,color_on);
- tapeSet(58,0);
+ shiftAllFwd(colors, numLEDs);
+ setAll(colors, numLEDs);
led1 = 0;
tapeSend();
- wait_ms(50);
-
- /*
- for(j = 0; j < numLEDs; j++);
- {
- tapeSet(j, 0);
- }*/
- //tapeSet(k, color_on);
+ wait_ms(100);
- tapeSet(0,color_on);
- tapeSet(1,0);
- tapeSet(2,color_on);
- tapeSet(3,0);
- tapeSet(4,color_on);
- tapeSet(5,0);
- tapeSet(6,color_on);
- tapeSet(7,0);
- tapeSet(8,color_on);
- tapeSet(9,0);
- tapeSet(10,color_on);
- tapeSet(11,0);
- tapeSet(12,color_on);
- tapeSet(13,0);
- tapeSet(14,color_on);
- tapeSet(15,0);
- tapeSet(16,color_on);
- tapeSet(17,0);
- tapeSet(18,color_on);
- tapeSet(19,0);
- tapeSet(20,color_on);
- tapeSet(21,0);
- tapeSet(22,color_on);
- tapeSet(23,0);
- tapeSet(24,color_on);
- tapeSet(25,0);
- tapeSet(26,color_on);
- tapeSet(27,0);
- tapeSet(28,color_on);
- tapeSet(29,0);
- tapeSet(30,color_on);
- tapeSet(31,0);
- tapeSet(32,color_on);
- tapeSet(33,0);
- tapeSet(34,color_on);
- tapeSet(35,0);
- tapeSet(36,color_on);
- tapeSet(37,0);
- tapeSet(38,color_on);
- tapeSet(39,0);
- tapeSet(40,color_on);
- tapeSet(41,0);
- tapeSet(42,color_on);
- tapeSet(43,0);
- tapeSet(44,color_on);
- tapeSet(45,0);
- tapeSet(46,color_on);
- tapeSet(47,0);
- tapeSet(48,color_on);
- tapeSet(49,0);
- tapeSet(50,color_on);
- tapeSet(51,0);
- tapeSet(52,color_on);
- tapeSet(53,0);
- tapeSet(54,color_on);
- tapeSet(55,0);
- tapeSet(56,color_on);
- tapeSet(57,0);
- tapeSet(58,color_on);
+ shiftAllFwd(colors, numLEDs);
+ setAll(colors, numLEDs);
led1 = 1;
tapeSend();
- wait_ms(50);
+ wait_ms(100);
}
- // }
}
}