diff --git a/examples/Ethernet/receive_fastled/receive_fastled.ino b/examples/Ethernet/receive_fastled/receive_fastled.ino
index 99ab0d2..d439e89 100644
--- a/examples/Ethernet/receive_fastled/receive_fastled.ino
+++ b/examples/Ethernet/receive_fastled/receive_fastled.ino
@@ -6,7 +6,7 @@ const IPAddress ip(192, 168, 0, 201);
 uint8_t mac[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB};
 
 ArtnetReceiver artnet;
-uint32_t universe = 1;
+uint8_t universe = 1;  // 0 - 15
 
 // FastLED
 #define NUM_LEDS 1
@@ -21,6 +21,8 @@ void setup() {
 
     Ethernet.begin(mac, ip);
     artnet.begin();
+    // artnet.subscribe_net(0);     // optionally you can change
+    // artnet.subscribe_subnet(0);  // optionally you can change
 
     // if Artnet packet comes to this universe, forward them to fastled directly
     artnet.forward(universe, leds, NUM_LEDS);
diff --git a/examples/Ethernet/receiver/receiver.ino b/examples/Ethernet/receiver/receiver.ino
index 192a1c3..31f7f2a 100644
--- a/examples/Ethernet/receiver/receiver.ino
+++ b/examples/Ethernet/receiver/receiver.ino
@@ -5,8 +5,8 @@ const IPAddress ip(192, 168, 0, 201);
 uint8_t mac[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB};
 
 ArtnetReceiver artnet;
-uint32_t universe1 = 1;
-uint32_t universe2 = 2;
+uint32_t universe1 = 1;  // 0 - 15
+uint32_t universe2 = 2;  // 0 - 15
 
 void callback(const uint8_t* data, const uint16_t size) {
     // you can also use pre-defined callbacks
@@ -17,6 +17,8 @@ void setup() {
 
     Ethernet.begin(mac, ip);
     artnet.begin();
+    // artnet.subscribe_net(0);     // optionally you can change
+    // artnet.subscribe_subnet(0);  // optionally you can change
 
     // if Artnet packet comes to this universe, this function is called
     artnet.subscribe(universe1, [&](const uint8_t* data, const uint16_t size) {
diff --git a/examples/Ethernet/send_receive/send_receive.ino b/examples/Ethernet/send_receive/send_receive.ino
index 91324c8..702cd0c 100644
--- a/examples/Ethernet/send_receive/send_receive.ino
+++ b/examples/Ethernet/send_receive/send_receive.ino
@@ -10,7 +10,7 @@ uint8_t mac[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB};
 
 Artnet artnet;
 const String target_ip = "192.168.0.200";
-uint32_t universe = 1;
+uint8_t universe = 1;  // 0 - 15
 
 const uint16_t size = 512;
 uint8_t data[size];
@@ -22,6 +22,8 @@ void setup() {
 
     Ethernet.begin(mac, ip);
     artnet.begin(target_ip);
+    // artnet.subscribe_net(0);     // optionally you can change
+    // artnet.subscribe_subnet(0);  // optionally you can change
 
     Serial.println("set subscriber");
 
diff --git a/examples/WiFi/receive_fastled/receive_fastled.ino b/examples/WiFi/receive_fastled/receive_fastled.ino
index a43b446..47fc6b5 100644
--- a/examples/WiFi/receive_fastled/receive_fastled.ino
+++ b/examples/WiFi/receive_fastled/receive_fastled.ino
@@ -9,7 +9,7 @@ const IPAddress gateway(192, 168, 1, 1);
 const IPAddress subnet(255, 255, 255, 0);
 
 ArtnetWiFiReceiver artnet;
-uint32_t universe = 1;
+uint8_t universe = 1;  // 0 - 15
 
 // FastLED
 #define NUM_LEDS 1
@@ -33,6 +33,8 @@ void setup() {
     Serial.println(WiFi.localIP());
 
     artnet.begin();
+    // artnet.subscribe_net(0);     // optionally you can change
+    // artnet.subscribe_subnet(0);  // optionally you can change
 
     // if Artnet packet comes to this universe, forward them to fastled directly
     artnet.forward(universe, leds, NUM_LEDS);
diff --git a/examples/WiFi/receiver/receiver.ino b/examples/WiFi/receiver/receiver.ino
index 265543c..774affe 100644
--- a/examples/WiFi/receiver/receiver.ino
+++ b/examples/WiFi/receiver/receiver.ino
@@ -8,8 +8,8 @@ const IPAddress gateway(192, 168, 1, 1);
 const IPAddress subnet(255, 255, 255, 0);
 
 ArtnetWiFiReceiver artnet;
-uint32_t universe1 = 1;
-uint32_t universe2 = 2;
+uint8_t universe1 = 1;  // 0 - 15
+uint8_t universe2 = 2;  // 0 - 15
 
 void callback(const uint8_t* data, const uint16_t size) {
     // you can also use pre-defined callbacks
@@ -29,6 +29,8 @@ void setup() {
     Serial.println(WiFi.localIP());
 
     artnet.begin();
+    // artnet.subscribe_net(0);     // optionally you can change
+    // artnet.subscribe_subnet(0);  // optionally you can change
 
     // if Artnet packet comes to this universe, this function (lambda) is called
     artnet.subscribe(universe1, [&](const uint8_t* data, const uint16_t size) {
diff --git a/examples/WiFi/send_receive/send_receive.ino b/examples/WiFi/send_receive/send_receive.ino
index 3db4183..643326d 100644
--- a/examples/WiFi/send_receive/send_receive.ino
+++ b/examples/WiFi/send_receive/send_receive.ino
@@ -9,7 +9,7 @@ const IPAddress subnet(255, 255, 255, 0);
 
 ArtnetWiFi artnet;
 const String target_ip = "192.168.1.200";
-uint32_t universe = 1;
+uint8_t universe = 1;  // 0 - 15
 
 const uint16_t size = 512;
 uint8_t data[size];
@@ -29,6 +29,8 @@ void setup() {
     Serial.println(WiFi.localIP());
 
     artnet.begin(target_ip);
+    // artnet.subscribe_net(0);     // optionally you can change
+    // artnet.subscribe_subnet(0);  // optionally you can change
 
     // if Artnet packet comes to this universe, this function is called
     artnet.subscribe(universe, [&](const uint8_t* data, const uint16_t size) {