79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
#include "wled.h"
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/*
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* Support for DMX Output via MAX485.
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* Change the output pin in src/dependencies/ESPDMX.cpp, if needed (ESP8266)
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* Change the output pin in src/dependencies/SparkFunDMX.cpp, if needed (ESP32)
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* ESP8266 Library from:
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* https://github.com/Rickgg/ESP-Dmx
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* ESP32 Library from:
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* https://github.com/sparkfun/SparkFunDMX
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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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uint8_t brightness = strip.getBrightness();
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bool calc_brightness = true;
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// check if no shutter channel is set
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for (unsigned i = 0; i < DMXChannels; i++)
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{
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if (DMXFixtureMap[i] == 5) calc_brightness = false;
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}
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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 = W(in);
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byte r = R(in);
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byte g = G(in);
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byte b = B(in);
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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, calc_brightness ? (r * brightness) / 255 : r);
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break;
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case 2: // Green
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dmx.write(DMXAddr, calc_brightness ? (g * brightness) / 255 : g);
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break;
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case 3: // Blue
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dmx.write(DMXAddr, calc_brightness ? (b * brightness) / 255 : b);
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break;
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case 4: // White
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dmx.write(DMXAddr, calc_brightness ? (w * brightness) / 255 : 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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#if defined(ESP8266) || defined(CONFIG_IDF_TARGET_ESP32C3) || defined(CONFIG_IDF_TARGET_ESP32S2)
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dmx.init(512); // initialize with bus length
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#else
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dmx.initWrite(512); // initialize with bus length
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#endif
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}
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#endif
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