Revision 0:b47973ee96a9, committed 2019-12-14

Comitter:

ahdyer

Date:

Sat Dec 14 16:57:40 2019 +0000

Commit message:

Code to control individually addressable RGB strips

Changed in this revision

diff -r 000000000000 -r b47973ee96a9 PixelArray.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PixelArray.lib	Sat Dec 14 16:57:40 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/chris/code/PixelArray/#b45a70faaa83

diff -r 000000000000 -r b47973ee96a9 WS2812.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WS2812.lib	Sat Dec 14 16:57:40 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/bridadan/code/WS2812/#6e647820f587

diff -r 000000000000 -r b47973ee96a9 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Dec 14 16:57:40 2019 +0000
@@ -0,0 +1,47 @@
+#include "mbed.h"
+#include "WS2812.h"
+#include "PixelArray.h"
+ 
+#define WS2812_BUF 30
+#define NUM_COLORS 6
+#define NUM_LEDS_PER_COLOR 1
+ 
+PixelArray px(WS2812_BUF);
+ 
+// See the program page for information on the timing numbers
+// The given numbers are for the K64F
+WS2812 ws(D9, WS2812_BUF, 3, 11, 10, 11);
+ 
+int main()
+{
+ 
+    ws.useII(WS2812::PER_PIXEL); // use per-pixel intensity scaling
+    
+    // set up the colours we want to draw with
+    int colorbuf[NUM_COLORS] = {0xfffff0,0xffff00,0xfff000,0xff0000,0xf00000,0xffffff};
+ 
+    // for each of the colours (j) write out 10 of them
+    // the pixels are written at the colour*10, plus the colour position
+    // all modulus 60 so it wraps around
+    for (int i = 0; i < WS2812_BUF; i++) {
+        px.Set(i, colorbuf[(i / NUM_LEDS_PER_COLOR) % NUM_COLORS]);
+    }
+ 
+    // now all the colours are computed, add a fade effect using intensity scaling
+    // compute and write the II value for each pixel
+    for (int j=0; j<WS2812_BUF; j++) {
+        // px.SetI(pixel position, II value)
+        px.SetI(j%WS2812_BUF, 0x0f);
+    }
+ 
+ 
+    // Now the buffer is written, rotate it
+    // by writing it out with an increasing offset
+    while (1) {
+        for (int z=WS2812_BUF; z >= 0 ; z--) {
+            ws.write_offsets(px.getBuf(),z,z,z);
+            wait(0.075);
+        }
+    }
+ 
+}
\ No newline at end of file

diff -r 000000000000 -r b47973ee96a9 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sat Dec 14 16:57:40 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file