Initial commit

src/ESPDMX.cpp

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+// - - - - -
+// ESPDMX - A Arduino library for sending and receiving DMX using the builtin serial hardware port.
+// ESPDMX.cpp: Library implementation file
+//
+// Copyright (C) 2015  Rick <ricardogg95@gmail.com>
+// This work is licensed under a GNU style license.
+//
+// Last change: Marcel Seerig <https://github.com/mseerig>
+//
+// Documentation and samples are available at https://github.com/Rickgg/ESP-Dmx
+// - - - - -
+
+/* ----- LIBRARIES ----- */
+#include <Arduino.h>
+#include "ESPDMX.h"
+
+#define DMXSPEED       250000
+#define DMXFORMAT      SERIAL_8N2
+#define BREAKSPEED     83333
+#define BREAKFORMAT    SERIAL_8N1
+#define SERIALPORT     Serial0
+#define DMXCHANNELS    512
+
+bool dmxStarted = false;
+int sendPin = 18;
+int receivePin = -1;
+
+// DMX value array and size. Entry 0 will hold startbyte, so we need 512+1 elements
+uint8_t dmxDataStore[DMXCHANNELS+1] = {};
+
+
+// Set up the DMX-Protocol
+void DMXESPSerial::init() {
+  SERIALPORT.begin(DMXSPEED, DMXFORMAT, receivePin, sendPin);
+  pinMode(sendPin, OUTPUT);
+  dmxStarted = true;
+}
+
+// Function to read DMX data
+uint8_t DMXESPSerial::read(int Channel) {
+  if (dmxStarted == false) init();
+
+  if (Channel < 1) Channel = 1;
+  if (Channel > DMXCHANNELS) Channel = DMXCHANNELS;
+  return(dmxDataStore[Channel]);
+}
+
+// Function to send DMX data
+void DMXESPSerial::write(int Channel, uint8_t value) {
+  if (dmxStarted == false) init();
+
+  if (Channel < 1) Channel = 1;
+  if (Channel > DMXCHANNELS) Channel = DMXCHANNELS;
+  if (value < 0) value = 0;
+  if (value > 255) value = 255;
+
+  dmxDataStore[Channel] = value;
+}
+
+void DMXESPSerial::end() {
+  SERIALPORT.end();
+  dmxStarted = false;
+}
+
+// Function to update the DMX bus
+void DMXESPSerial::update() {
+  if (dmxStarted == false) init();
+
+  //Send break
+  digitalWrite(sendPin, HIGH);
+  SERIALPORT.begin(BREAKSPEED, BREAKFORMAT, receivePin, sendPin);
+  SERIALPORT.write(0);
+  SERIALPORT.flush();
+  delay(1);
+  SERIALPORT.end();
+
+  //send data
+  SERIALPORT.begin(DMXSPEED, DMXFORMAT, receivePin, sendPin);
+  digitalWrite(sendPin, LOW);
+  SERIALPORT.write(dmxDataStore, DMXCHANNELS);
+  SERIALPORT.flush();
+  delay(1);
+  SERIALPORT.end();
+}

src/ESPDMX.h

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+// - - - - -
+// ESPDMX - A Arduino library for sending and receiving DMX using the builtin serial hardware port.
+// ESPDMX.cpp: Library implementation file
+//
+// Copyright (C) 2015  Rick <ricardogg95@gmail.com>
+// This work is licensed under a GNU style license.
+//
+// Last change: Marcel Seerig <https://github.com/mseerig>
+//
+// Documentation and samples are available at https://github.com/Rickgg/ESP-Dmx
+// - - - - -
+
+#include <inttypes.h>
+
+
+#ifndef ESPDMX_h
+#define ESPDMX_h
+
+// ---- Methods ----
+
+class DMXESPSerial {
+public:
+  void init();
+  uint8_t read(int Channel);
+  void write(int channel, uint8_t value);
+  void update();
+  void end();
+};
+
+#endif

src/main.cpp

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+// Art-Net DMX Interface Demo
+// 2024-10-17 Patrick Schwarz
+
+#include <ArtnetWiFi.h>
+//#include <ArtnetEther.h>
+
+#include "ESPDMX.h"
+
+// WiFi stuff
+const char* ssid = "artnet";
+const char* pwd = "mbgmbgmbg";
+const IPAddress ip(192, 168, 1, 201);
+const IPAddress gateway(192, 168, 1, 1);
+const IPAddress subnet(255, 255, 255, 0);
+
+// Art-Net stuff
+ArtnetWiFi artnet;
+//const String target_ip = "192.168.1.200";
+uint8_t universe = 1;  // 0 - 15
+const uint16_t size = 512;
+uint8_t data[size];
+uint8_t value = 0;
+
+// DMX stuff
+DMXESPSerial dmx;
+
+
+void setup() {
+
+    // Serial console
+    //Serial.begin(115200);
+
+    // WiFi stuff
+    //WiFi.begin(ssid, pwd);
+    WiFi.softAP(ssid, pwd);
+    WiFi.softAPConfig(ip, gateway, subnet);
+    //WiFi.config(ip, gateway, subnet);
+    //while (WiFi.status() != WL_CONNECTED) {
+    //    Serial.print(".");
+        delay(500);
+    //}
+    //Serial.print("WiFi connected, IP = ");
+    //Serial.println(WiFi.localIP());
+
+    // Initialize Art-Net
+    artnet.begin();
+
+    // Initialize DMX ports
+    dmx.init();
+
+    // if Artnet packet comes to this universe, this function is called
+    artnet.subscribeArtDmxUniverse(universe, [&](const uint8_t *data, uint16_t size, const ArtDmxMetadata& metadata, const ArtNetRemoteInfo& remote) {
+        /*Serial.print("lambda : artnet data from ");
+        Serial.print(remote.ip);
+        Serial.print(":");
+        Serial.print(remote.port);
+        Serial.print(", universe = ");
+        Serial.print(universe);
+        Serial.print(", size = ");
+        Serial.print(size);
+        Serial.print(") :");*/
+
+        for (size_t i = 0; i < size; ++i) {
+            dmx.write((i+1), data[i]);
+        //    Serial.print(data[i]);
+        //    Serial.print(",");
+        }
+        //Serial.println();
+
+        dmx.update(); 
+        
+    });
+
+    // if Artnet packet comes, this function is called to every universe
+    artnet.subscribeArtDmx([&](const uint8_t *data, uint16_t size, const ArtDmxMetadata& metadata, const ArtNetRemoteInfo& remote) {
+        /*Serial.print("received ArtNet data from ");
+        Serial.print(remote.ip);
+        Serial.print(":");
+        Serial.print(remote.port);
+        Serial.print(", net = ");
+        Serial.print(metadata.net);
+        Serial.print(", subnet = ");
+        Serial.print(metadata.subnet);
+        Serial.print(", universe = ");
+        Serial.print(metadata.universe);
+        Serial.print(", sequence = ");
+        Serial.print(metadata.sequence);
+        Serial.print(", size = ");
+        Serial.print(size);
+        Serial.println(")");*/
+    });
+}
+
+void loop() {
+    artnet.parse();  // check if artnet packet has come and execute callback
+
+    /*value = (millis() / 4) % 256;
+    memset(data, value, size);
+
+    artnet.setArtDmxData(data, size);
+    artnet.streamArtDmxTo(target_ip, universe);  // automatically send set data in 40fps
+    // artnet.streamArtDmxTo(target_ip, net, subnet, univ);  // or you can set net, subnet, and universe */
+
+}