diff --git a/config.php b/config.php
index 94644f8..122d6c6 100644
--- a/config.php
+++ b/config.php
@@ -1,18 +1,25 @@
 <?php
-define('DB_HOST', 'smarthome_db');
+define('DB_HOST', 'mariadb');
 define('DB_USER', 'smarthome_user');
 define('DB_PASSWORD', 'SH_LaSalle_SD8');
 define('DB_NAME', 'smarthome');
+
 define('JWT_SECRET', 'smarthome_secret_key_2024_smart_home_project_very_long_key');
-define('MQTT_BROKER', 'localhost');
+
+define('MQTT_BROKER', 'mosquitto');
 define('MQTT_PORT', 1883);
 define('MQTT_TOPIC_CLIMATE', 'smarthome/climate');
 define('MQTT_TOPIC_SECURITY', 'smarthome/security');
+
 function get_db() {
-    $conn = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
-    if ($conn->connect_error) {
-        die(json_encode(['error' => 'Connexion échouée : ' . $conn->connect_error]));
+    try {
+        $pdo = new PDO("mysql:host=" . DB_HOST . ";dbname=" . DB_NAME . ";charset=utf8", DB_USER, DB_PASSWORD, [
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
+        ]);
+        return $pdo;
+    } catch (PDOException $e) {
+        die(json_encode(['error' => 'Connexion échouée : ' . $e->getMessage()]));
     }
-    return $conn;
 }
 ?>
\ No newline at end of file
diff --git a/mqtt_client.php b/mqtt_client.php
index d6a8ca2..69a231b 100644
--- a/mqtt_client.php
+++ b/mqtt_client.php
@@ -5,27 +5,38 @@ require_once 'vendor/autoload.php';
 use PhpMqtt\Client\MqttClient;
 use PhpMqtt\Client\ConnectionSettings;
 
-function insert_climate($data) {
+try {
     $db = get_db();
-    $stmt = $db->prepare("INSERT INTO climate_data (temperature, humidity, pressure, luminosity) VALUES (?, ?, ?, ?)");
-    $stmt->bind_param("dddd",
-        $data['temperature'],
-        $data['humidity'],
-        $data['pressure'],
-        $data['luminosity']
-    );
-    $stmt->execute();
-    $db->close();
-    echo "Donnée climatique insérée : " . json_encode($data) . "\n";
+} catch (Exception $e) {
+    die("Impossible de démarrer le script : " . $e->getMessage() . "\n");
 }
 
-function insert_security($data) {
-    $db = get_db();
-    $stmt = $db->prepare("INSERT INTO security_events (event_type, location) VALUES (?, ?)");
-    $stmt->bind_param("ss", $data['event_type'], $data['location']);
-    $stmt->execute();
-    $db->close();
-    echo "Événement sécurité inséré : " . json_encode($data) . "\n";
+function insert_climate($db, $data) {
+    try {
+        $stmt = $db->prepare("INSERT INTO climate_data (temperature, humidity, pressure, luminosity) VALUES (:temp, :hum, :pres, :lum)");
+        $stmt->execute([
+            ':temp' => $data['temperature'],
+            ':hum'  => $data['humidity'],
+            ':pres' => $data['pressure'],
+            ':lum'  => $data['luminosity']
+        ]);
+        echo "Donnée climatique insérée : " . json_encode($data) . "\n";
+    } catch (PDOException $e) {
+        echo "Erreur d'insertion climat : " . $e->getMessage() . "\n";
+    }
+}
+
+function insert_security($db, $data) {
+    try {
+        $stmt = $db->prepare("INSERT INTO security_events (event_type, location) VALUES (:event, :loc)");
+        $stmt->execute([
+            ':event' => $data['event_type'],
+            ':loc'   => $data['location']
+        ]);
+        echo "Événement sécurité inséré : " . json_encode($data) . "\n";
+    } catch (PDOException $e) {
+        echo "Erreur d'insertion sécurité : " . $e->getMessage() . "\n";
+    }
 }
 
 $mqtt = new MqttClient(MQTT_BROKER, MQTT_PORT);
@@ -33,14 +44,18 @@ $settings = (new ConnectionSettings())->setKeepAliveInterval(60);
 $mqtt->connect($settings);
 echo "Connecté au broker MQTT\n";
 
-$mqtt->subscribe(MQTT_TOPIC_CLIMATE, function($topic, $message) {
+$mqtt->subscribe(MQTT_TOPIC_CLIMATE, function($topic, $message) use ($db) {
     $data = json_decode($message, true);
-    insert_climate($data);
+    if ($data) {
+        insert_climate($db, $data);
+    }
 }, 0);
 
-$mqtt->subscribe(MQTT_TOPIC_SECURITY, function($topic, $message) {
+$mqtt->subscribe(MQTT_TOPIC_SECURITY, function($topic, $message) use ($db) {
     $data = json_decode($message, true);
-    insert_security($data);
+    if ($data) {
+        insert_security($db, $data);
+    }
 }, 0);
 
 $mqtt->loop(true);
diff --git a/smart-house---final-/dashboard.js b/smart-house---final-/dashboard.js
index a8b1f53..7ad8e77 100644
--- a/smart-house---final-/dashboard.js
+++ b/smart-house---final-/dashboard.js
@@ -1,15 +1,11 @@
 /* global Chart */
-// -------------------------------
-// 1️⃣ Sélection des widgets
-// -------------------------------
+
 const climat = document.querySelector('.widget.climat');
 const securite = document.querySelector('.widget.securite');
 const energie = document.querySelector('.widget.energie');
 const lumiere = document.querySelector('.widget.lumiere');
 const alertes = document.querySelector('.widget.alertes');
-// -------------------------------
-// 2️⃣ Hover dynamique sur les widgets
-// -------------------------------
+
 function setupHover(widget, colorNormal, colorHover) {
     widget.addEventListener('mouseenter', () => {
         widget.style.backgroundColor = colorHover;
@@ -18,31 +14,33 @@ function setupHover(widget, colorNormal, colorHover) {
         widget.style.backgroundColor = colorNormal;
     });
 }
+
 setupHover(climat, '#ADD8E6', '#87CEEB');
 setupHover(securite, '#D3D3D3', '#C0C0C0');
 setupHover(energie, '#FFFACD', '#FAFAD2');
 setupHover(lumiere, '#F5F5DC', '#FFF8DC');
-// -------------------------------
-// 3️⃣ Simulation d'alerte visuelle
-// -------------------------------
+
 function showAlert(widget) {
     widget.classList.add('alert');
 }
+
 showAlert(climat);
 alertes.style.display = 'block';
-// -------------------------------
-// 4️⃣ Graphique Chart.js
-// -------------------------------
+
+let monGraphique = null;
 const canvasTemp = document.getElementById('graph-temp');
-if(canvasTemp) {
+
+function creerGraphique(labels, valeurs) {
+    if (!canvasTemp) return;
     const ctx = canvasTemp.getContext('2d');
-    new Chart(ctx, {
+
+    monGraphique = new Chart(ctx, {
         type: 'line',
         data: {
-            labels: ['Jan', 'Feb', 'Mar', 'Apr', 'May'],
+            labels: labels,
             datasets: [{
                 label: 'Température',
-                data: [20, 22, 19, 23, 21],
+                data: valeurs,
                 borderColor: 'blue',
                 backgroundColor: 'rgba(173,216,230,0.2)',
                 tension: 0.4
@@ -54,49 +52,55 @@ if(canvasTemp) {
                 legend: { display: true }
             },
             scales: {
-                x: { display: true, title: { display: true, text: 'Mois' } },
+                x: { display: true, title: { display: true, text: 'Temps' } },
                 y: { display: true, title: { display: true, text: '°C' } }
             }
         }
     });
 }
-// -------------------------------
-// 5️⃣ Données réelles depuis l'API
-// -------------------------------
-const API_BASE = "http://192.168.10.1:8080";
+
+async function chargerDonnees() {
+    try {
+        const res = await fetch('api/get_data.php');
+        const data = await res.json();
+
+        if (data.status === 'success') {
+            if (data.climate) {
+                document.getElementById("temperature").textContent = data.climate.temperature + " °C";
+                document.getElementById("humidity").textContent = data.climate.humidity + " %";
+                document.getElementById("pressure").textContent = data.climate.pressure + " hPa";
+                document.getElementById("luminosity").textContent = data.climate.luminosity + " lux";
+            }
+
+            if (data.security) {
+                document.getElementById("event_type").textContent = data.security.event_type;
+                document.getElementById("location").textContent = data.security.location;
+            }
+
+            if (data.graph && data.graph.length > 0) {
+                const labels = data.graph.map(point => {
+                    const date = new Date(point.timestamp);
+                    return date.toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' });
+                });
+                const temperatures = data.graph.map(point => point.temperature);
+
+                if (monGraphique) {
+                    monGraphique.data.labels = labels;
+                    monGraphique.data.datasets[0].data = temperatures;
+                    monGraphique.update();
+                } else {
+                    creerGraphique(labels, temperatures);
+                }
+            }
+        }
+    } catch (error) {
+        console.error("Erreur lors du chargement de l'API :", error);
+    }
+}
 
 async function init() {
-    const res = await fetch(`${API_BASE}/auth.php`, {
-        method: "POST",
-        headers: { "Content-Type": "application/json" },
-        body: JSON.stringify({ username: "admin", password: "admin123" })
-    });
-    const data = await res.json();
-    const token = data.token;
-    await chargerClimat(token);
-    await chargerSecurite(token);
-}
-
-async function chargerClimat(token) {
-    const res = await fetch(`${API_BASE}/routes/climate.php`, {
-        headers: { "Authorization": "Bearer " + token }
-    });
-    const data = await res.json();
-    const last = Array.isArray(data) ? data[data.length - 1] : data;
-    document.getElementById("temperature").textContent = last.temperature + " °C";
-    document.getElementById("humidity").textContent = last.humidity + " %";
-    document.getElementById("pressure").textContent = last.pressure + " hPa";
-    document.getElementById("luminosity").textContent = last.luminosity + " lux";
-}
-
-async function chargerSecurite(token) {
-    const res = await fetch(`${API_BASE}/routes/security.php`, {
-        headers: { "Authorization": "Bearer " + token }
-    });
-    const data = await res.json();
-    const last = Array.isArray(data) ? data[data.length - 1] : data;
-    document.getElementById("event_type").textContent = last.event_type;
-    document.getElementById("location").textContent = last.location;
+    await chargerDonnees();
+    setInterval(chargerDonnees, 5000);
 }
 
 init();
\ No newline at end of file