diff --git a/parametrage.md b/parametrage.md
new file mode 100644
index 0000000..d1899ce
--- /dev/null
+++ b/parametrage.md
@@ -0,0 +1,25 @@
+# Paramétrage Initial — esp_jardin
+
+## Connexion WiFi
+- Mode Station (STA) :
+  - SSID: "Mon_Reseau_WiFi"
+  - PASS: "Mon_Mot_De_Passe_Securise"
+- Mode Access Point (AP de secours) :
+  - AP_SSID: "ESP_CHEF_JARDIN"
+  - AP_PASS: "Jardin2026"
+  - Connection_Timeout: 30000 ms
+
+## Acquisition & Fréquences
+- Fréquence de mesure : 10 000 ms
+- Taille historique RAM : 288 points par acquisition
+
+## Broker MQTT
+- IP Broker: "10.0.0.3"
+- Port: 1883
+- MQTT_User: ""
+- MQTT_Pass: ""
+
+## Sondes
+- Sonde 0 — T°C Ext   | topic: maison/jardin/ext/temperature   | intervalle: 60 000 ms | deadband: 0.2
+- Sonde 1 — T°C Serre | topic: maison/jardin/serre/temperature | intervalle: 60 000 ms | deadband: 0.1
+- Sonde 2 — T°C Sol   | topic: maison/jardin/sol/temperature   | intervalle: 60 000 ms | deadband: 0.1
diff --git a/platformio.ini b/platformio.ini
index 4b30716..b609470 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -1,14 +1,16 @@
 ; PlatformIO Project Configuration File
-;
-;   Build options: build flags, source filter
-;   Upload options: custom upload port, speed and extra flags
-;   Library options: dependencies, extra library storages
-;   Advanced options: extra scripting
-;
-; Please visit documentation for the other options and examples
-; https://docs.platformio.org/page/projectconf.html
-
 [env:esp32dev]
 platform = espressif32
 board = esp32dev
 framework = arduino
+board_build.filesystem = littlefs
+
+lib_deps =
+    esp32async/ESPAsyncWebServer
+    esp32async/AsyncTCP
+    paulstoffregen/OneWire @ ^2.3.7
+    milesburton/DallasTemperature @ ^3.11.0
+    knolleary/PubSubClient @ ^2.8
+    bblanchon/ArduinoJson @ ^7
+
+upload_flags = --auth=Jardin2026