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ARDUINOSUBSCRIBE

+#include <ArduinoMqttClient.h>
+#include <WiFiNINA.h>
+#include "pass.h"
+
+
+///////please enter your sensitive data in the Secret tab/arduino_secrets.h
+char ssid[] = SECRET_SSID;        // your network SSID
+char pass[] = SECRET_PASS;    // your network password
+
+WiFiClient wifiClient;
+MqttClient mqttClient(wifiClient);
+
+const char broker[] = "test.mosquitto.org";
+int        port     = 1883;
+const char AAJtopic[] = "BUTTON ACTIVATED";
+const char SOUNDtopic[] = "SOUND DETECTED";
+const char LIGHTtopic[] = "POSSIBLE MOVEMENT DETECTED";
+
+
+void setup() {
+
+  Serial.begin(9600);
+  while (!Serial) {
+    ;
+  }
+  //WIFI
+  Serial.println("Attempting to connect to SSID: ");
+  while (WiFi.begin(ssid, pass) != WL_CONNECTED) {
+
+  int numSsid = WiFi.scanNetworks();
+  if (numSsid == -1) {
+  Serial.println("Couldn't get a wifi connection");
+  while (true);
+  } 
+  //FAILED
+    Serial.print(".");
+    delay(5000);
+  }
+
+  Serial.println("You're connected to the network");
+  Serial.println();
+
+  Serial.print("Attempting to connect to the MQTT broker: ");
+  Serial.println(broker);
+
+  if (!mqttClient.connect(broker, port)) {
+    Serial.print("MQTT connection failed! Error code = ");
+    Serial.println(mqttClient.connectError());
+
+    while (1);
+  }
+
+  Serial.println("You're connected to the MQTT broker!");
+  Serial.println();
+
+  //CALLBACK
+  mqttClient.onMessage(onMqttMessage);
+  
+
+  Serial.print("Subscribing to topic: ");
+  Serial.println(AAJtopic);
+  Serial.println();
+  Serial.print("Subscribing to topic: ");
+  Serial.println(SOUNDtopic);
+  Serial.println();
+  Serial.print("Subscribing to topic: ");
+  Serial.println(LIGHTtopic);
+  Serial.println();
+
+  // TOPIC SUBSCRIPTION
+  mqttClient.subscribe(AAJtopic);
+  mqttClient.subscribe(SOUNDtopic); 
+  mqttClient.subscribe(LIGHTtopic);  
+  Serial.println();
+}
+
+void loop() {
+//POLL BROKER TO STAY CONNECTED
+  mqttClient.poll();
+}
+
+//ON MESSAGE RECIEVED, PRINT IT
+void onMqttMessage(int messageSize) {
+
+  Serial.print(mqttClient.messageTopic());
+
+  Serial.println();
+  Serial.println();
+}
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