diff --git a/services/buzzer-manager.js b/services/buzzer-manager.js
new file mode 100644
index 0000000..0ae22b5
--- /dev/null
+++ b/services/buzzer-manager.js
@@ -0,0 +1,181 @@
+// Import necessary modules
+const mqtt = require('mqtt');
+
+// MQTT broker configuration
+const brokerUrl = 'mqtt://localhost'; // Broker URL (change if needed)
+const clientId = 'buzzer_manager';
+const options = {
+    clientId,
+    clean: true
+};
+
+// State variables
+let buzzerActive = false; // Indicates if buzzers are blocked
+let buzzerThatPressed = null; // Stores the ID of the buzzer that pressed first
+let tiltBuzzers = new Set(); // List of buzzer IDs currently in "tilt" mode
+
+// Connect to the MQTT broker
+const client = mqtt.connect(brokerUrl, options);
+
+client.on('connect', () => {
+    console.log(`[INFO] Connected to MQTT broker ${brokerUrl} with ID ${clientId}`);
+
+    // Subscribe to topics related to buzzer presses, unlocking, and tilt management
+    client.subscribe('brainblast/buzzer/pressed/#', (err) => {
+        if (err) console.error('[ERROR] Failed to subscribe to buzzer presses');
+        else console.log('[INFO] Successfully subscribed to buzzer presses');
+    });
+
+    client.subscribe('brainblast/buzzer/unlock', (err) => {
+        if (err) console.error('[ERROR] Failed to subscribe to buzzer unlock');
+        else console.log('[INFO] Successfully subscribed to buzzer unlock');
+    });
+
+    client.subscribe('brainblast/buzzer/tilt', (err) => {
+        if (err) console.error('[ERROR] Failed to subscribe to tilt management');
+        else console.log('[INFO] Successfully subscribed to tilt management');
+    });
+});
+
+// Validate buzzer payload
+function validateBuzzerPayload(payload) {
+    const { buzzer_id, color } = payload;
+
+    // Validate buzzer ID (should be a positive integer)
+    if (typeof buzzer_id !== 'number' || buzzer_id <= 0) {
+        console.error(`[ERROR] Invalid buzzer ID: ${buzzer_id}`);
+        return false;
+    }
+
+    // Validate color (should be in the format #RRGGBB)
+    const validColor = /^#[0-9A-F]{6}$/i.test(color);
+    if (!validColor) {
+        console.error(`[ERROR] Invalid color: ${color}`);
+        return false;
+    }
+
+    return true;
+}
+
+// Handle incoming messages
+client.on('message', (topic, message) => {
+    let payload;
+
+    // Parse the incoming message
+    try {
+        payload = JSON.parse(message.toString());
+    } catch (e) {
+        console.error(`[ERROR] Invalid JSON message received on topic ${topic}: ${message.toString()}`);
+        return;
+    }
+
+    // Manage tilt mode for buzzers
+    if (topic === 'brainblast/buzzer/tilt') {
+        const { buzzer_id, status } = payload;
+
+        if (typeof buzzer_id !== 'number' || !['add', 'remove'].includes(status)) {
+            console.error('[ERROR] Invalid tilt payload, message ignored.');
+            return;
+        }
+
+        if (status === 'add') {
+            tiltBuzzers.add(buzzer_id);
+            console.log(`[INFO] Buzzer ID ${buzzer_id} added to tilt mode`);
+        } else if (status === 'remove') {
+            tiltBuzzers.delete(buzzer_id);
+            console.log(`[INFO] Buzzer ID ${buzzer_id} removed from tilt mode`);
+        }
+        return;
+    }
+
+    // Detect a buzzer press
+    if (topic.startsWith('brainblast/buzzer/pressed/')) {
+        // Validate buzzer payload
+        if (!validateBuzzerPayload(payload)) {
+            console.error('[ERROR] Invalid buzzer payload, message ignored.');
+            return;
+        }
+
+        const buzzerId = payload.buzzer_id; // Unique buzzer ID
+        const color = payload.color; // Associated hex color
+
+        // Ignore if the buzzer is in tilt mode
+        if (tiltBuzzers.has(buzzerId)) {
+            console.log(`[INFO] Buzzer ID ${buzzerId} ignored (Tilt mode active)`);
+            return;
+        }
+
+        // Notify activity even if buzzers are blocked
+        client.publish('brainblast/buzzer/activity', JSON.stringify({
+            buzzer_id: buzzerId,
+            color: color,
+            status: buzzerActive ? "blocked" : "free",
+            message: `Activity detected on buzzer ID ${buzzerId} (Color: ${color})`,
+            timestamp: new Date().toISOString()
+        }));
+
+        // Confirm buzzer press receipt
+        client.publish(`brainblast/buzzer/confirmation/${buzzerId}`, JSON.stringify({
+            status: "received",
+            buzzer_id: buzzerId,
+            message: `Buzzer ID ${buzzerId} activated with color ${color}`,
+            timestamp: new Date().toISOString()
+        }));
+
+        if (!buzzerActive) {
+            // Block further buzzers and record the first pressed ID
+            buzzerActive = true;
+            buzzerThatPressed = buzzerId;
+
+            console.log(`[INFO] Buzzer activated by ID: ${buzzerId} (Color: ${color})`);
+
+            // Notify the light manager to change to the team's color
+            client.publish('brainblast/light/change', JSON.stringify({
+                color: color,
+                effect: 'full_color'
+            }));
+
+            // Notify all components of buzzer blocking
+            client.publish('brainblast/buzzer/status', JSON.stringify({
+                status: "blocked",
+                buzzer_id: buzzerId,
+                color: color,
+                message: `Buzzer activated by ID ${buzzerId} (Color: ${color})`,
+                timestamp: new Date().toISOString()
+            }));
+
+            console.log(`[INFO] Buzzers blocked and notification sent`);
+        }
+    }
+
+    // Unlock buzzers
+    if (topic === 'brainblast/buzzer/unlock') {
+        console.log('[INFO] Buzzer unlock requested');
+
+        // Confirm receipt of unlock command
+        client.publish('brainblast/buzzer/unlock/confirmation', JSON.stringify({
+            status: "received",
+            message: "Buzzer unlock command received.",
+            timestamp: new Date().toISOString()
+        }));
+
+        // Reset buzzer manager state
+        buzzerActive = false;
+        buzzerThatPressed = null;
+
+        // Notify all components of buzzer unlock
+        client.publish('brainblast/buzzer/status', JSON.stringify({
+            status: "unblocked",
+            message: "Buzzers unblocked and ready for activation.",
+            timestamp: new Date().toISOString()
+        }));
+
+        console.log('[INFO] Buzzers unblocked and notification sent');
+    }
+});
+
+client.on('error', (err) => {
+    console.error(`[ERROR] Error connecting to broker: ${err}`);
+});
+
+console.log('[INFO] Buzzer manager started...');
diff --git a/services/package-lock.json b/services/package-lock.json
new file mode 100644
index 0000000..f583e07
--- /dev/null
+++ b/services/package-lock.json
@@ -0,0 +1,497 @@
+{
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+      "license": "MIT",
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+}
diff --git a/services/package.json b/services/package.json
new file mode 100644
index 0000000..086d591
--- /dev/null
+++ b/services/package.json
@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "mqtt": "^5.10.1"
+  }
+}
diff --git a/services/test-buzzer-manager.js b/services/test-buzzer-manager.js
new file mode 100644
index 0000000..23cdf01
--- /dev/null
+++ b/services/test-buzzer-manager.js
@@ -0,0 +1,142 @@
+// Import necessary modules
+const mqtt = require('mqtt');
+
+// MQTT broker configuration
+const brokerUrl = 'mqtt://localhost'; // Broker URL (change if needed)
+const options = {
+    clientId: 'test_buzzer_manager',
+    clean: true
+};
+
+// Set up MQTT client
+const client = mqtt.connect(brokerUrl, options);
+
+// Variables for tracking test results
+let testResults = {
+    buzzerActivity: false,
+    confirmationReceived: false,
+    statusBlocked: false,
+    statusUnblocked: false,
+    tiltAdded: false,
+    tiltIgnored: false,
+    tiltRemoved: false,
+    unlockConfirmation: false
+};
+
+// Subscribe to topics to capture the responses from the buzzer manager
+client.on('connect', () => {
+    console.log('[INFO] Connected to MQTT broker for testing');
+
+    // Subscribe to all topics related to the buzzer manager
+    client.subscribe('brainblast/buzzer/#', (err) => {
+        if (err) console.error('[ERROR] Failed to subscribe to topics for testing');
+        else console.log('[INFO] Subscribed to topics successfully');
+    });
+
+    // Run the test sequence after a short delay
+    setTimeout(runTestSequence, 500);
+});
+
+// Capture and process incoming MQTT messages
+client.on('message', (topic, message) => {
+    const payload = JSON.parse(message.toString());
+    console.log(`[INFO] Message received on ${topic}: ${message.toString()}`);
+
+    // Track the test results based on the topics and payloads
+    if (topic.startsWith('brainblast/buzzer/activity') && payload.buzzer_id === 1) {
+        testResults.buzzerActivity = true;
+    }
+
+    if (topic.startsWith(`brainblast/buzzer/confirmation/1`) && payload.status === "received") {
+        testResults.confirmationReceived = true;
+    }
+
+    if (topic === 'brainblast/buzzer/status' && payload.status === "blocked") {
+        testResults.statusBlocked = true;
+    }
+
+    if (topic === 'brainblast/buzzer/status' && payload.status === "unblocked") {
+        testResults.statusUnblocked = true;
+    }
+
+    if (topic === 'brainblast/buzzer/unlock/confirmation' && payload.status === "received") {
+        testResults.unlockConfirmation = true;
+    }
+
+    if (topic === 'brainblast/buzzer/activity' && payload.buzzer_id === 2 && payload.status === "blocked") {
+        testResults.tiltIgnored = true;
+    }
+
+    if (topic.startsWith('brainblast/buzzer/status') && payload.message.includes('Tilt removed')) {
+        testResults.tiltRemoved = true;
+    }
+});
+
+// Function to run the complete test sequence
+function runTestSequence() {
+    console.log('[INFO] Starting test sequence...');
+
+    // 1. Simulate a buzzer press (buzzer 1, color red)
+    console.log('[TEST] Simulating buzzer press (ID 1, color #FF0000)...');
+    client.publish('brainblast/buzzer/pressed/1', JSON.stringify({
+        buzzer_id: 1,
+        color: "#FF0000"
+    }));
+
+    // 2. Simulate a second buzzer press (buzzer 2, color blue) to check blocking
+    setTimeout(() => {
+        console.log('[TEST] Simulating second buzzer press (ID 2, color #0000FF)...');
+        client.publish('brainblast/buzzer/pressed/2', JSON.stringify({
+            buzzer_id: 2,
+            color: "#0000FF"
+        }));
+    }, 1000);
+
+    // 3. Simulate adding a buzzer to tilt mode (buzzer 2)
+    setTimeout(() => {
+        console.log('[TEST] Adding buzzer ID 2 to tilt mode...');
+        client.publish('brainblast/buzzer/tilt', JSON.stringify({
+            buzzer_id: 2,
+            status: "add"
+        }));
+        testResults.tiltAdded = true;
+    }, 1500);
+
+    // 4. Simulate pressing a buzzer in tilt mode (should be ignored)
+    setTimeout(() => {
+        console.log('[TEST] Simulating tilt buzzer press (ID 2, color #0000FF)...');
+        client.publish('brainblast/buzzer/pressed/2', JSON.stringify({
+            buzzer_id: 2,
+            color: "#0000FF"
+        }));
+    }, 2000);
+
+    // 5. Remove tilt mode from buzzer 2
+    setTimeout(() => {
+        console.log('[TEST] Removing tilt mode for buzzer ID 2...');
+        client.publish('brainblast/buzzer/tilt', JSON.stringify({
+            buzzer_id: 2,
+            status: "remove"
+        }));
+    }, 2500);
+
+    // 6. Unlock buzzers to reset state
+    setTimeout(() => {
+        console.log('[TEST] Unlocking buzzers...');
+        client.publish('brainblast/buzzer/unlock', '{}');
+    }, 3000);
+
+    // 7. Display results
+    setTimeout(() => {
+        console.log('[INFO] Test sequence complete. Results:');
+        console.log(`1. Buzzer activity detected for buzzer 1: ${testResults.buzzerActivity ? 'PASSED' : 'FAILED'}`);
+        console.log(`2. Confirmation received for buzzer 1: ${testResults.confirmationReceived ? 'PASSED' : 'FAILED'}`);
+        console.log(`3. Buzzer 1 status set to "blocked": ${testResults.statusBlocked ? 'PASSED' : 'FAILED'}`);
+        console.log(`4. Buzzer status set to "unblocked": ${testResults.statusUnblocked ? 'PASSED' : 'FAILED'}`);
+        console.log(`5. Tilt mode added for buzzer 2: ${testResults.tiltAdded ? 'PASSED' : 'FAILED'}`);
+        console.log(`6. Tilted buzzer press ignored: ${testResults.tiltIgnored ? 'PASSED' : 'FAILED'}`);
+        console.log(`7. Tilt mode removed for buzzer 2: ${testResults.tiltRemoved ? 'PASSED' : 'FAILED'}`);
+        console.log(`8. Unlock confirmation received: ${testResults.unlockConfirmation ? 'PASSED' : 'FAILED'}`);
+        client.end(); // End the MQTT connection
+    }, 4000);
+}