diff --git a/Technique.py b/Technique.py
new file mode 100644
index 0000000..490fe3f
--- /dev/null
+++ b/Technique.py
@@ -0,0 +1,74 @@
+import streamlit as st
+import pandas as pd
+from utils.db import get_latest_chaufferie, get_history_by_sonde, verifier_utilisateur_commun
+
+st.set_page_config(page_title="Tech Chaufferie", layout="wide")
+
+def login_commun():
+    login = st.text_input("Identifiant", type="default")
+    password = st.text_input("Mot de passe", type="password")
+
+    if st.button("Se connecter"):
+        user = verifier_utilisateur_commun(login, password)
+        if user:
+            st.session_state["authenticated"] = True
+            st.session_state["utilisateur"] = user["NomUtilisateur"]
+            st.success("✅ Connexion réussie")
+            st.rerun()
+        else:
+            st.error("❌ Identifiants incorrects ou expirés")
+
+# Authentification
+if "authenticated" not in st.session_state:
+    st.session_state["authenticated"] = False
+
+if not st.session_state["authenticated"]:
+    st.title("🔧 Suivi des sondes de la chaufferie")
+    st.subheader("🔐 Connexion technicien chaufferie")
+    login_commun()
+    st.stop()
+with st.sidebar:
+    st.markdown(f"👤 Connecté en tant que **{st.session_state['utilisateur']}**")
+    if st.button("🔓 Se déconnecter"):
+        st.session_state.clear()
+        st.rerun()
+# --- Affichage principal ---
+st.title("🔧 Suivi des sondes de la chaufferie")
+
+data = get_latest_chaufferie()
+df = pd.DataFrame(data)
+
+# Ajout d'un statut couleur
+def statut(temp):
+    if temp > 75:
+        return "❌ Très chaud"
+    elif temp > 60:
+        return "⚠️ Surveiller"
+    else:
+        return "✅ OK"
+
+df["Statut"] = df["Temperature"].apply(statut)
+
+# Séparer par topic
+for topic in df["Topic"].unique():
+    st.subheader(f"Zone : {topic}")
+    st.dataframe(df[df["Topic"] == topic][["Sonde", "Temperature", "Date", "Statut"]], use_container_width=True)
+
+# Graphique historique
+st.markdown("---")
+st.header("📈 Historique par sonde (24h)")
+
+sonde_selection = st.selectbox("Choisir une sonde à afficher", df["Sonde"].unique())
+
+if sonde_selection:
+    historique = get_history_by_sonde(sonde_selection)
+    if historique:
+        df_hist = pd.DataFrame(historique)
+        df_hist["Date"] = pd.to_datetime(df_hist["Date"])
+
+        st.line_chart(
+            df_hist.set_index("Date")["Temperature"],
+            use_container_width=True
+        )
+    else:
+        st.info("Aucune donnée disponible pour cette sonde dans les dernières 24h.")
diff --git a/utils/db.py b/utils/db.py
new file mode 100644
index 0000000..0cf253f
--- /dev/null
+++ b/utils/db.py
@@ -0,0 +1,64 @@
+import mysql.connector
+import os
+from dotenv import load_dotenv
+
+load_dotenv()
+
+def verifier_utilisateur_commun(login, password):
+    conn = get_connection()
+    cursor = conn.cursor(dictionary=True)
+
+    query = """
+        SELECT NomUtilisateur FROM Commun.AccesUtilisateurs
+        WHERE NomUtilisateur = %s
+          AND MotDePasse = %s
+          AND (DateExpiration IS NULL OR DateExpiration >= CURDATE())
+    """
+    cursor.execute(query, (login, password))
+    user = cursor.fetchone()
+    cursor.close()
+    conn.close()
+    return user  # None si non trouvé
+
+def get_connection():
+    return mysql.connector.connect(
+        host=os.getenv("DB_HOST"),
+        user=os.getenv("DB_USER"),
+        password=os.getenv("DB_PASSWORD"),
+        database=os.getenv("DB_NAME")
+    )
+
+def get_latest_chaufferie():
+    conn = get_connection()
+    cursor = conn.cursor(dictionary=True)
+    query = """
+        SELECT c1.Sonde, c1.Temperature, c1.Date, c1.Topic
+        FROM Chaufferie c1
+        INNER JOIN (
+            SELECT Sonde, MAX(Date) AS MaxDate
+            FROM Chaufferie
+            GROUP BY Sonde
+        ) c2 ON c1.Sonde = c2.Sonde AND c1.Date = c2.MaxDate
+        ORDER BY c1.Topic, c1.Sonde
+    """
+    cursor.execute(query)
+    data = cursor.fetchall()
+    cursor.close()
+    conn.close()
+    return data
+
+def get_history_by_sonde(sonde_name):
+    conn = get_connection()
+    cursor = conn.cursor(dictionary=True)
+    query = """
+        SELECT Date, Temperature
+        FROM Chaufferie
+        WHERE Sonde = %s AND Date >= NOW() - INTERVAL 1 DAY
+        ORDER BY Date ASC
+    """
+    cursor.execute(query, (sonde_name,))
+    data = cursor.fetchall()
+    cursor.close()
+    conn.close()
+    return data
+