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Simple 8x8 LED Matrix controller which interfaces with a Processing GUI over serial to display sketches
Dependencies: Multi_WS2811 mbed
Fork of Multi_WS2811_test by
Diff: main.cpp
- Revision:
- 20:b9d76e567637
- Parent:
- 19:600deef36348
- Child:
- 21:4541da183397
diff -r 600deef36348 -r b9d76e567637 main.cpp --- a/main.cpp Fri Dec 06 06:58:12 2013 +0000 +++ b/main.cpp Sat Dec 21 04:32:21 2013 +0000 @@ -2,23 +2,71 @@ #include "WS2811.h" #include "Colors.h" +const unsigned nLEDs = 60*4; + +const PinName dataOutput = PTD2; +const PinName sckOutput = PTD1; +SPI_Type *spiPort = SPI0; + +DigitalOut debugOut(PTD3); +Serial pc(USBTX, USBRX); + +// @brief sets different colors in each of the LEDs of a strip +// @param strip the light strip +// @param sat saturation, 0.0 - 1.0 +// @param brite brightness, 0.0 - 1.0 +// @param hueShift shift, 0.0 - 1.0 is equivalent to 0 - 360 degrees +void showRainbow(WS2811 &strip, float sat, float brite, float hueShift) +{ + unsigned nLEDs = strip.numPixels(); + for (unsigned i = 0; i < nLEDs; i++) { + uint8_t r, g, b; + float hue = ((float)i / (float)nLEDs) + hueShift; + HSBtoRGB(hue, sat, brite, &r, &g, &b); + strip.setPixelColor(i, LedStrip::Color(r, g, b)); + } + strip.begin(); +} +void showTestPattern(WS2811 &strip) +{ + unsigned nLEDs = strip.numPixels(); + for (unsigned i = 0; i < nLEDs; i++) { + strip.setPixelColor(i, LedStrip::Color(0xff,0,0x55)); + } + strip.show(); +} +void dump_spi_settings(SPI_Type const *spi) +{ + pc.printf("SPI C1=%#02x, C2=%#02x, BR=%d, S=%#02x, D=%#02x, M=%02x\r\n", spi->C1, spi->C2, spi->BR, spi->S, spi->D, spi->M); + pc.printf("DMA DSR_BCR=%#08lx, SAR=%p, DAR=%p, DCR=%#08lx\r\n", + (unsigned long)DMA0->DMA[0].DSR_BCR, + DMA0->DMA[0].SAR, + DMA0->DMA[0].DAR, + DMA0->DMA[0].DCR); +} + int main(void) { - const unsigned nLEDs = 60*4; + pc.baud(115200); + pc.printf("LEDs: %d\r\n", nLEDs); + debugOut = 0; - // NLEDs MOSI SCK - WS2811 lightStrip(nLEDs, PTD2, PTD3); + // NLEDs MOSI SCK + WS2811 lightStrip(nLEDs, spiPort, dataOutput, sckOutput); + + lightStrip.begin(); + dump_spi_settings(spiPort); - float sat = 1.0; - float brite = 0.25; - for (float hueShift = 0.0; hueShift < 10.0; hueShift += 1.0 / 20) { - for (unsigned i = 0; i < nLEDs; i++) { - uint8_t r, g, b; - float hue = ((float)i / (float)nLEDs) + hueShift; - HSBtoRGB(hue, sat, brite, &r, &g, &b); - lightStrip.setPixelColor(i, LedStrip::Color(r, g, b)); - } - lightStrip.begin(); - wait(0.5); - } + // float sat = 1.0; + // float brite = 0.25; + // float hueShift = 0.0; + // float hueShiftIncrement = 1.0 / (360.0 / 30.0); + for (;;) { + // debugOut = 1; + // showRainbow(lightStrip, sat, brite, hueShift); + showTestPattern(lightStrip); + + // debugOut = 0; + // hueShift += hueShiftIncrement; + } } \ No newline at end of file