Hexiwear / Mbed OS Hexi_Click_4x4RGB_Example

Simple Click 4x4 RGB example for Hexiwear

Dependencies:   PixelArray WS2812

Fork of WS2812_Example by Brian Daniels

main.cpp@0:12cb6f0c2788, 2015-02-12 (annotated)

Committer:
bridadan
Date:
Thu Feb 12 19:20:00 2015 +0000
Revision:
0:12cb6f0c2788
Child:
1:e04a0ecefa29
Example for WS2812 Library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bridadan 0:12cb6f0c2788 1 #include "mbed.h"
bridadan 0:12cb6f0c2788 2 #include "WS2812.h"
bridadan 0:12cb6f0c2788 3 #include "PixelArray.h"
bridadan 0:12cb6f0c2788 4
bridadan 0:12cb6f0c2788 5 #define WS2812_BUF 60
bridadan 0:12cb6f0c2788 6
bridadan 0:12cb6f0c2788 7 WS2812 ws(D9,WS2812_BUF);
bridadan 0:12cb6f0c2788 8 PixelArray px(WS2812_BUF);
bridadan 0:12cb6f0c2788 9
bridadan 0:12cb6f0c2788 10 DigitalOut led(LED1);
bridadan 0:12cb6f0c2788 11
bridadan 0:12cb6f0c2788 12 int main()
bridadan 0:12cb6f0c2788 13 {
bridadan 0:12cb6f0c2788 14
bridadan 0:12cb6f0c2788 15 ws.useII(2); // use per-pixel intensity scaling
bridadan 0:12cb6f0c2788 16
bridadan 0:12cb6f0c2788 17 // set up the colours we want to draw with
bridadan 0:12cb6f0c2788 18 int colorbuf[6] = {0x2f0000,0x2f2f00,0x002f00,0x002f2f,0x00002f,0x2f002f};
bridadan 0:12cb6f0c2788 19
bridadan 0:12cb6f0c2788 20 // for each of the colours (j) write out 10 of them
bridadan 0:12cb6f0c2788 21 // the pixels are written at the colour*10, plus the colour position
bridadan 0:12cb6f0c2788 22 // all modulus 60 so it wraps around
bridadan 0:12cb6f0c2788 23 for (int i =0; i<6; i++) {
bridadan 0:12cb6f0c2788 24 for (int j=0; j<10; j++) {
bridadan 0:12cb6f0c2788 25 px.Set(((i*10)+j)%60,colorbuf[i]);
bridadan 0:12cb6f0c2788 26 }
bridadan 0:12cb6f0c2788 27 }
bridadan 0:12cb6f0c2788 28
bridadan 0:12cb6f0c2788 29 // now all the colours are computed, add a fade effect using intensity scaling
bridadan 0:12cb6f0c2788 30 // compute and write the II value for each pixel
bridadan 0:12cb6f0c2788 31 for (int j=0; j<60; j++) {
bridadan 0:12cb6f0c2788 32 // px.SetI(pixel position, II value)
bridadan 0:12cb6f0c2788 33 px.SetI(j%60, 0xf+(0xf*(j%10)));
bridadan 0:12cb6f0c2788 34 }
bridadan 0:12cb6f0c2788 35
bridadan 0:12cb6f0c2788 36
bridadan 0:12cb6f0c2788 37 // Now the buffer is written, rotate it
bridadan 0:12cb6f0c2788 38 // by writing it out with an increasing offset
bridadan 0:12cb6f0c2788 39 while (1) {
bridadan 0:12cb6f0c2788 40 for (int z=59; z >= 0 ; z--) {
bridadan 0:12cb6f0c2788 41 ws.write_offsets(px.getBuf(),z,z,z);
bridadan 0:12cb6f0c2788 42 wait(0.075);
bridadan 0:12cb6f0c2788 43 }
bridadan 0:12cb6f0c2788 44 }
bridadan 0:12cb6f0c2788 45
bridadan 0:12cb6f0c2788 46 }