A program that fades between a selection of colors.
Dependencies: PixelArray WS2812 mbed
main.cpp
- Committer:
- theros
- Date:
- 2017-03-12
- Revision:
- 0:de636c7cdfda
- Child:
- 1:ad5c2cfb2002
File content as of revision 0:de636c7cdfda:
#include "mbed.h" #include "WS2812.h" #include "PixelArray.h" #define WS2812_BUF 77 //number of LEDs in the array #define NUM_COLORS 6 //number of colors to store in the array DigitalIn usrBtn(USER_BUTTON); DigitalOut usrLed(LED1); PixelArray px(WS2812_BUF); // See the program page for information on the timing numbers WS2812 ws(D9, WS2812_BUF, 6,17,9,14); //nucleo-f411re int main() { int colorIdx = 0; ws.useII(WS2812::PER_PIXEL); // use per-pixel intensity scaling // set up the colours we want to draw with int colorbuf[NUM_COLORS] = {0x2f0000,0x2f2f00,0x002f00,0x002f2f,0x00002f,0x2f002f}; // Now the buffer is written, write it to the led array. while (1) { //write the color value for each pixel px.SetAll(colorbuf[colorIdx]); //write the II value for each pixel px.SetAllI(64); for (int i = WS2812_BUF; i >= 0; i--) { ws.write(px.getBuf()); } colorIdx++; if (colorIdx >= NUM_COLORS) { colorIdx = 0; } } }