diff --git a/src/ESPDMX.cpp b/src/ESPDMX.cpp
index efdc7a2..3ac7775 100644
--- a/src/ESPDMX.cpp
+++ b/src/ESPDMX.cpp
@@ -5,7 +5,7 @@
 // Copyright (C) 2015  Rick <ricardogg95@gmail.com>
 // This work is licensed under a GNU style license.
 //
-// Last change: Marcel Seerig <https://github.com/mseerig>
+// Last change: Hendrik Rauh <https://github.com/hendrikrauh>
 //
 // Documentation and samples are available at https://github.com/Rickgg/ESP-Dmx
 // - - - - -
@@ -13,6 +13,9 @@
 /* ----- LIBRARIES ----- */
 #include <Arduino.h>
 #include "ESPDMX.h"
+#include <vector>
+
+#define MAX_IDS 3
 
 #define DMXSPEED 250000
 #define DMXFORMAT SERIAL_8N2
@@ -21,41 +24,45 @@
 #define SERIALPORT Serial0
 #define DMXCHANNELS 512
 
-bool dmxStarted = false;
-int sendPin = 18;
-int receivePin = -1;
+int sendPin[] = {};
+int recvPin[] = {};
 
 // DMX value array and size. Entry 0 will hold startbyte, so we need 512+1 elements
-uint8_t dmxDataStore[DMXCHANNELS + 1] = {};
+// std::vector<uint8_t[DMXCHANNELS + 1]> dmxDataStores(MAX_IDS);
+// uint8_t dmxDataStores[MAX_IDS][DMXCHANNELS + 1];
+
+struct dmxPorts
+{
+    uint8_t id;
+    int sendPin;
+    int recvPin;
+    bool started;
+    uint8_t dmxDataStore[DMXCHANNELS + 1];
+};
 
 // Set up the DMX-Protocol
-void DMXESPSerial::init()
+void DMXESPSerial::init(int id, int pinSend, int pinRecv)
 {
-    SERIALPORT.begin(DMXSPEED, DMXFORMAT, receivePin, sendPin);
-    pinMode(sendPin, OUTPUT);
-    dmxStarted = true;
+    sendPin[id] = pinSend;
+    recvPin[id] = pinRecv;
+    SERIALPORT.begin(DMXSPEED, DMXFORMAT, recvPin[id], sendPin[id]);
+    pinMode(sendPin[id], OUTPUT);
 }
 
 // Function to read DMX data
-uint8_t DMXESPSerial::read(int Channel)
+uint8_t DMXESPSerial::read(int id, int Channel)
 {
-    if (dmxStarted == false)
-        init();
-
     if (Channel < 1)
         Channel = 1;
     if (Channel > DMXCHANNELS)
         Channel = DMXCHANNELS;
-    return (dmxDataStore[Channel]);
+    return (dmxDataStores[id][Channel]);
 }
 
 // Function to send DMX data
-void DMXESPSerial::write(int Channel, uint8_t value)
+void DMXESPSerial::write(int id, int Channel, uint8_t value)
 {
-    if (dmxStarted == false)
-        init();
-
-    if (Channel < 1)
+    s if (Channel < 1)
         Channel = 1;
     if (Channel > DMXCHANNELS)
         Channel = DMXCHANNELS;
@@ -64,33 +71,29 @@ void DMXESPSerial::write(int Channel, uint8_t value)
     if (value > 255)
         value = 255;
 
-    dmxDataStore[Channel] = value;
+    dmxDataStores[id][Channel] = value;
 }
 
 void DMXESPSerial::end()
 {
     SERIALPORT.end();
-    dmxStarted = false;
 }
 
 // Function to update the DMX bus
-void DMXESPSerial::update()
+void DMXESPSerial::update(int id)
 {
-    if (dmxStarted == false)
-        init();
-
     // Send break
-    digitalWrite(sendPin, HIGH);
-    SERIALPORT.begin(BREAKSPEED, BREAKFORMAT, receivePin, sendPin);
+    digitalWrite(sendPin[id], HIGH);
+    SERIALPORT.begin(BREAKSPEED, BREAKFORMAT, recvPin[id], sendPin[id]);
     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.begin(DMXSPEED, DMXFORMAT, recvPin[id], sendPin[id]);
+    digitalWrite(sendPin[id], LOW);
+    SERIALPORT.write(dmxDataStores[id], DMXCHANNELS);
     SERIALPORT.flush();
     delay(1);
     SERIALPORT.end();
diff --git a/src/ESPDMX.h b/src/ESPDMX.h
index 8cdc522..748a727 100644
--- a/src/ESPDMX.h
+++ b/src/ESPDMX.h
@@ -5,7 +5,7 @@
 // Copyright (C) 2015  Rick <ricardogg95@gmail.com>
 // This work is licensed under a GNU style license.
 //
-// Last change: Marcel Seerig <https://github.com/mseerig>
+// Last change: Hendrik Rauh <https://github.com/Hendrik Rauh>
 //
 // Documentation and samples are available at https://github.com/Rickgg/ESP-Dmx
 // - - - - -
@@ -20,10 +20,11 @@
 
 class DMXESPSerial {
     public:
-        void init();
-        uint8_t read(int Channel);
-        void write(int channel, uint8_t value);void update();
+        void init(int id, int pinSend, int pinRecv);
+        uint8_t read(int id, int Channel);
+        void write(int id, int channel, uint8_t value);void update();
         void end();
+        void update(int id);
 };
 
 #endif
diff --git a/src/main.cpp b/src/main.cpp
index eec27b7..91faa1c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -8,7 +8,9 @@
 #include <Preferences.h>
 
 Preferences config;
-DMXESPSerial dmx;
+
+DMXESPSerial dmx1;
+DMXESPSerial dmx2;
 
 AsyncWebServer server(80);
 
@@ -16,6 +18,8 @@ ArtnetWiFi artnet;
 const uint16_t size = 512;
 uint8_t data[size];
 
+int selectedId = 0;
+
 void setup()
 {
     Serial.begin(9600);
@@ -51,17 +55,17 @@ void setup()
     artnet.begin();
 
     // Initialize DMX ports
-    dmx.init();
+    dmx.init(0, 19, -1);
 
     // 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)
                                    {
                                     for (size_t i = 0; i < size; ++i)
                                     {
-                                        dmx.write((i + 1), data[i]);
+                                        dmx.write(selectedId, (i + 1), data[i]);
                                     }
 
-                                    dmx.update(); });
+                                    dmx.update(selectedId); });
 
     // 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) {});