Simple Click 4x4 RGB example for Hexiwear
Dependencies: PixelArray WS2812
Fork of WS2812_Example by
main.cpp
- Committer:
- GregC
- Date:
- 2016-10-19
- Revision:
- 3:8ac839958132
- Parent:
- 2:cb82a3dc4031
File content as of revision 3:8ac839958132:
#include "mbed.h" #include "WS2812.h" #include "PixelArray.h" #define WS2812_BUF 96 // W2812_BUFF >/= NUM_COLORS * NUM_LEDS #define NUM_COLORS 6 #define NUM_LEDS 16 // Pin connections DigitalOut led1(LED_GREEN); // RGB LED Serial pc(USBTX, USBRX); // Serial interface WS2812 ws(PTB11, WS2812_BUF, 0, 5, 5, 0); // LED Driver // Variables int i, j, z; // Fuctions PixelArray px(WS2812_BUF); int main() { // use per-pixel intensity scaling // ws.useII(WS2812::PER_PIXEL); // Enable Pixel diming between first and last row ws.useII(WS2812::GLOBAL); // Pixel dimming disabled // set up the colours we want to draw with int colorbuf[NUM_COLORS] = {0x2f0000,0x2f2f00,0x002f00,0x002f2f,0x00002f,0x2f002f}; // for each of the colours (j) write out 16 of them the pixels are written at the colour*16, plus the colour position all modulus 60 so it wraps around for (i = 0; i < WS2812_BUF; i++) { px.Set(i, colorbuf[(i / NUM_LEDS) % 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 (j=0; j<WS2812_BUF; j++) { // px.SetI(pixel position, II value) px.SetI(j%WS2812_BUF, 0xf+(0xf*(j%NUM_LEDS))); } // Now the buffer is written, rotate it by writing it out with an increasing offset while (true) { for (z=0; z<WS2812_BUF; z++) // Color updated from Top to Bottom // for (z=WS2812_BUF; z>=0; z--) // Color updated from Bottom to Top { ws.write_offsets(px.getBuf(),z,z,z); Thread::wait(100); } led1 = !led1; } }