70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
#include "wled.h"
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/*
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* Support for DMX via MAX485.
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* Change the output pin in src/dependencies/ESPDMX.cpp if needed.
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* Library from:
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* https://github.com/Rickgg/ESP-Dmx
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*/
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#ifdef WLED_ENABLE_DMX
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void handleDMX()
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{
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// don't act, when in DMX Proxy mode
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if (e131ProxyUniverse != 0) return;
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// TODO: calculate brightness manually if no shutter channel is set
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uint8_t brightness = strip.getBrightness();
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uint16_t len = strip.getLengthTotal();
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for (int i = DMXStartLED; i < len; i++) { // uses the amount of LEDs as fixture count
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uint32_t in = strip.getPixelColor(i); // get the colors for the individual fixtures as suggested by Aircoookie in issue #462
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byte w = in >> 24 & 0xFF;
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byte r = in >> 16 & 0xFF;
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byte g = in >> 8 & 0xFF;
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byte b = in & 0xFF;
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int DMXFixtureStart = DMXStart + (DMXGap * (i - DMXStartLED));
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for (int j = 0; j < DMXChannels; j++) {
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int DMXAddr = DMXFixtureStart + j;
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switch (DMXFixtureMap[j]) {
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case 0: // Set this channel to 0. Good way to tell strobe- and fade-functions to fuck right off.
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dmx.write(DMXAddr, 0);
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break;
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case 1: // Red
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dmx.write(DMXAddr, r);
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break;
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case 2: // Green
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dmx.write(DMXAddr, g);
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break;
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case 3: // Blue
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dmx.write(DMXAddr, b);
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break;
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case 4: // White
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dmx.write(DMXAddr, w);
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break;
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case 5: // Shutter channel. Controls the brightness.
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dmx.write(DMXAddr, brightness);
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break;
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case 6: // Sets this channel to 255. Like 0, but more wholesome.
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dmx.write(DMXAddr, 255);
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break;
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}
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}
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}
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dmx.update(); // update the DMX bus
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}
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void initDMX() {
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dmx.init(512); // initialize with bus length
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}
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#else
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void handleDMX() {}
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void initDMX() {}
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#endif
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