diff --git a/sidra_chain_integration/project/sidra_nexus/src/main/java/com/sidra/IoT.java b/sidra_chain_integration/project/sidra_nexus/src/main/java/com/sidra/IoT.java
new file mode 100644
index 000000000..ea36e4c98
--- /dev/null
+++ b/sidra_chain_integration/project/sidra_nexus/src/main/java/com/sidra/IoT.java
@@ -0,0 +1,15 @@
+package com.sidra;
+
+import org.eclipse.paho.client.mqttv3.MqttClient;
+import org.eclipse.paho.client.mqttv3.MqttMessage;
+
+public class IoT {
+    public static void main(String[] args) {
+        // Set up an MQTT client
+        MqttClient client = new MqttClient("tcp://localhost:1883", "client");
+
+        // Publish a message
+        MqttMessage message = new MqttMessage("Hello, world!".getBytes());
+        client.publish("topic", message);
+    }
+}