Version OK avec Mqtt

2026-03-16 11:20:10 +01:00
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--- a/README.md
+++ b/README.md
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+# Thermostat Project for Sonoff Basic R2
+
+This project implements a WiFi thermostat using a Sonoff Basic R2, designed for integration with Home Assistant via MQTT. It supports preset modes (confort, eco, off, boost), receives room temperature from an MQTT gateway, and provides a fallback WiFi configuration portal for setup.
+
+## Features
+- MQTT-based Home Assistant integration as a thermostat device (with preset modes)
+- Receives room temperature from an external MQTT sensor (e.g., Xiaomi)
+- Fallback WiFi configuration page for setting WiFi, MQTT server, preset temperatures, and device ID
+- Configurable preset temperatures (confort, eco, boost, hors gel)
+- Clean code structure for maintainability
+
+## Project Structure
+- `src/` : Main application logic
+- `include/` : Header files
+- `data/` : Static files for web configuration portal
+- `platformio.ini` : PlatformIO project configuration
+- `README.md` : This documentation
+
+## Getting Started
+
+### 1. Prerequisites
+- PlatformIO extension for VS Code
+- Sonoff Basic R2 device
+- MQTT broker (e.g., Mosquitto)
+- Home Assistant instance
+
+### 2. Build & Upload
+1. Clone this repository or copy the folder to your PlatformIO workspace.
+2. Edit `platformio.ini` if needed (WiFi/MQTT credentials can be set via the web portal after first boot).
+3. Build and upload the firmware to your Sonoff Basic R2.
+
+### 3. First Boot & Configuration
+- On first boot (or if WiFi/MQTT fails), the device starts a WiFi AP for configuration.
+- Connect to the AP and open the captive portal to set:
+  - WiFi SSID/password
+  - MQTT server/port/credentials
+  - Preset temperatures (confort, eco, boost, hors gel)
+  - Device ID for temperature sensor
+
+### 4. Home Assistant Integration
+- The device publishes/receives via MQTT using the Home Assistant climate platform.
+- Preset modes (confort, eco, off, boost) are supported and can be set from Home Assistant.
+- The device subscribes to a temperature topic (e.g., from a Xiaomi sensor via Zigbee2MQTT).
+
+## Home Assistant Integration
+
+### MQTT Topics
+
+The thermostat uses the following MQTT topics:
+
+**Temperature Input (Subscribe):**
+```
+home/OMG_ESP32_BLE/BTtoMQTT/<SENSOR_MAC_ADDRESS>
+```
+- The device subscribes to receive temperature updates from your sensor
+- Example: `home/OMG_ESP32_BLE/BTtoMQTT/A4C1389ADA64`
+- Payload format: `{"tempc": 21.5, "hum": 45.2, "batt": 85, ...}`
+- Only the `tempc` field is required
+
+**Thermostat State (Publish):**
+```
+home/thermostat/<DEVICE_ID>/state
+```
+- The device publishes its current state
+- Payload format: `{"mode": 1, "target": 21.0, "heating": true}`
+
+**Thermostat Commands (Subscribe):**
+```
+home/thermostat/<DEVICE_ID>/set
+```
+- Home Assistant sends commands to control the thermostat
+- Payload format: `{"mode": 1, "target": 22.0}`
+
+### Manual Configuration in Home Assistant
+
+Add the following to your Home Assistant `configuration.yaml`:
+
+```yaml
+mqtt:
+  climate:
+    - name: "Living Room Thermostat"
+      unique_id: "thermostat_living_room"
+      
+      # Current temperature from sensor
+      current_temperature_topic: "home/OMG_ESP32_BLE/BTtoMQTT/A4C1389ADA64"
+      current_temperature_template: "{{ value_json.tempc }}"
+      
+      # Temperature control
+      temperature_command_topic: "home/thermostat/sonoff_thermo_01/set"
+      temperature_state_topic: "home/thermostat/sonoff_thermo_01/state"
+      temperature_state_template: "{{ value_json.target }}"
+      
+      # Mode control
+      mode_command_topic: "home/thermostat/sonoff_thermo_01/set"
+      mode_command_template: '{"mode": {% if value == "off" %}0{% elif value == "heat" %}1{% endif %}}'
+      mode_state_topic: "home/thermostat/sonoff_thermo_01/state"
+      mode_state_template: >
+        {% if value_json.mode == 0 %}off
+        {% elif value_json.mode == 1 %}heat
+        {% else %}off{% endif %}
+      modes:
+        - "off"
+        - "heat"
+      
+      # Preset modes (confort, eco, boost, hors gel)
+      preset_mode_command_topic: "home/thermostat/sonoff_thermo_01/set"
+      preset_mode_command_template: >
+        {"mode": {% if value == "comfort" %}1
+        {% elif value == "eco" %}2
+        {% elif value == "boost" %}3
+        {% elif value == "away" %}4
+        {% else %}0{% endif %}}
+      preset_mode_state_topic: "home/thermostat/sonoff_thermo_01/state"
+      preset_mode_value_template: >
+        {% if value_json.mode == 1 %}comfort
+        {% elif value_json.mode == 2 %}eco
+        {% elif value_json.mode == 3 %}boost
+        {% elif value_json.mode == 4 %}away
+        {% else %}none{% endif %}
+      preset_modes:
+        - "comfort"
+        - "eco"
+        - "boost"
+        - "away"
+      
+      # Temperature settings
+      min_temp: 5
+      max_temp: 30
+      temp_step: 0.5
+      precision: 0.1
+
+sensor:
+  - platform: mqtt
+    name: "Living Room Temperature"
+    state_topic: "home/OMG_ESP32_BLE/BTtoMQTT/A4C1389ADA64"
+    value_template: "{{ value_json.tempc }}"
+    unit_of_measurement: "°C"
+    device_class: temperature
+    
+  - platform: mqtt
+    name: "Living Room Humidity"
+    state_topic: "home/OMG_ESP32_BLE/BTtoMQTT/A4C1389ADA64"
+    value_template: "{{ value_json.hum }}"
+    unit_of_measurement: "%"
+    device_class: humidity
+
+binary_sensor:
+  - platform: mqtt
+    name: "Living Room Thermostat Heating"
+    state_topic: "home/thermostat/sonoff_thermo_01/state"
+    value_template: "{{ value_json.heating }}"
+    payload_on: true
+    payload_off: false
+    device_class: heat
+```
+
+**Important:** Replace:
+- `A4C1389ADA64` with your Xiaomi sensor's MAC address (without colons)
+- `sonoff_thermo_01` with your device ID configured in the web portal
+
+### Using the Thermostat in Home Assistant
+
+After configuration and restart, you can:
+
+1. **Set Temperature:** Use the climate card to adjust target temperature
+2. **Change Modes:**
+   - **Off:** Heating disabled
+   - **Heat:** Heating enabled with current preset
+3. **Select Presets:**
+   - **Comfort:** Standard comfort temperature (e.g., 21°C)
+   - **Eco:** Energy-saving mode (e.g., 19°C)
+   - **Boost:** Maximum heating (e.g., 24°C)
+   - **Away (Hors Gel):** Frost protection (e.g., 7°C)
+
+### Automation Example
+
+```yaml
+automation:
+  - alias: "Thermostat Night Mode"
+    trigger:
+      - platform: time
+        at: "22:00:00"
+    action:
+      - service: climate.set_preset_mode
+        target:
+          entity_id: climate.living_room_thermostat
+        data:
+          preset_mode: "eco"
+          
+  - alias: "Thermostat Morning Mode"
+    trigger:
+      - platform: time
+        at: "06:30:00"
+    condition:
+      - condition: state
+        entity_id: binary_sensor.workday
+        state: "on"
+    action:
+      - service: climate.set_preset_mode
+        target:
+          entity_id: climate.living_room_thermostat
+        data:
+          preset_mode: "comfort"
+```
+
+### Lovelace Card Example
+
+```yaml
+type: thermostat
+entity: climate.living_room_thermostat
+features:
+  - type: climate-preset-modes
+    preset_modes:
+      - comfort
+      - eco
+      - boost
+      - away
+```
+
+### Troubleshooting
+
+**No temperature updates:**
+1. Check MQTT broker logs: `mosquitto_sub -h localhost -t "home/OMG_ESP32_BLE/BTtoMQTT/#" -v`
+2. Verify sensor MAC address matches configuration (use uppercase without colons)
+3. Check sensor battery level
+4. Ensure sensor is in range of BLE gateway
+
+**Thermostat not responding to commands:**
+1. Verify MQTT topics match your device ID
+2. Check MQTT broker connection from Home Assistant
+3. Monitor device serial output for errors
+4. Ensure MQTT buffer size is set to 512 bytes (see `platformio.ini`)
+
+**Important Note:** The default MQTT buffer size for PubSubClient is 128 bytes, which is too small for Xiaomi sensor payloads (~317 bytes). This project increases it to 512 bytes via the build flag `-DMQTT_MAX_PACKET_SIZE=512` in `platformio.ini`.
+
+### 5. File Overview
+- `src/main.cpp` : Main application entry point
+- `src/thermostat.cpp` / `include/thermostat.h` : Thermostat logic
+- `src/mqtt_handler.cpp` / `include/mqtt_handler.h` : MQTT communication
+- `src/web_config.cpp` / `include/web_config.h` : WiFi/MQTT/web config portal
+- `src/preset.cpp` / `include/preset.h` : Preset management
+- `data/` : HTML/CSS/JS for configuration portal
+
+## Example MQTT Topics
+- Temperature: `home/room/temperature/<device_id>`
+- State: `home/thermostat/<device_id>/state`
+- Command: `home/thermostat/<device_id>/set`
+
+## Over-The-Air (OTA) Updates
+
+The thermostat supports OTA updates, allowing you to upload new firmware wirelessly without physical access to the device.
+
+### Using OTA with PlatformIO
+
+1. **Ensure the device is connected to WiFi** and note its IP address from the serial monitor
+
+2. **Configure OTA upload in platformio.ini** (optional - for easier uploads):
+   ```ini
+   upload_protocol = espota
+   upload_port = <DEVICE_IP_ADDRESS>
+   ```
+
+3. **Upload via OTA**:
+   ```bash
+   # Using PlatformIO CLI
+   platformio run --target upload --upload-port <DEVICE_IP_ADDRESS>
+   
+   # Or use the PlatformIO IDE upload button after setting upload_protocol
+   ```
+
+### Using OTA with Arduino IDE
+
+1. Open **Tools > Port** and select the network port (shows as `<device_hostname> at <IP>`)
+2. Click **Upload** as normal
+
+### OTA Behavior
+
+- During OTA update, the LED stays solid ON
+- Progress is shown in the serial monitor
+- Device automatically reboots after successful update
+- If OTA fails, the device continues running the existing firmware
+
+### Security Note
+
+By default, OTA has no password protection. For production use, add a password:
+```cpp
+ArduinoOTA.setPassword("your-password-here");
+```
+
+## Advanced
+- Fallback to AP mode if WiFi or MQTT fails
+- All configuration is stored in flash and can be reset via the web portal
+- OTA updates for remote firmware deployment
+
+## License
+MIT
--- a/data/index.html
+++ b/data/index.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>Thermostat Config</title>
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <style>
+    body { font-family: Arial, sans-serif; margin: 2em; }
+    label { display: block; margin-top: 1em; }
+    input, select { width: 100%; padding: 0.5em; }
+    button { margin-top: 2em; padding: 1em; width: 100%; }
+  </style>
+</head>
+<body>
+  <h2>Thermostat WiFi & MQTT Config</h2>
+  <form method="POST" action="/save">
+    <label>WiFi SSID<input name="ssid" required></label>
+    <label>WiFi Password<input name="wpass" type="password"></label>
+    <label>MQTT Server<input name="mqtt" required></label>
+    <label>MQTT Port<input name="mqttport" type="number" value="1883"></label>
+    <label>MQTT User<input name="mqttuser"></label>
+    <label>MQTT Password<input name="mqttpass" type="password"></label>
+    <label>Device ID<input name="devid" required></label>
+    <label>Temperature Sensor ID<input name="tempid" required></label>
+    <label>Confort Temp (°C)<input name="confort" type="number" value="20" step="0.1"></label>
+    <label>Eco Temp (°C)<input name="eco" type="number" value="17" step="0.1"></label>
+    <label>Boost Temp (°C)<input name="boost" type="number" value="22" step="0.1"></label>
+    <label>Hors Gel Temp (°C)<input name="horsgel" type="number" value="7" step="0.1"></label>
+    <button type="submit">Save & Reboot</button>
+  </form>
+</body>
+</html>
--- a/include/main.h
+++ b/include/main.h
@@ -0,0 +1,7 @@
+
+
+//GPIO12 // Relay
+//GPIO13 // LED
+
+#define LED_PIN 13
+#define RELAY_PIN 12
--- a/include/mqtt_handler.h
+++ b/include/mqtt_handler.h
@@ -0,0 +1,12 @@
+#pragma once
+#include <Arduino.h>
+#include <PubSubClient.h>
+#include "thermostat.h"
+
+extern float currentTemp;  // Global temperature variable updated by MQTT callback
+
+bool mqtt_connect(PubSubClient& client);
+void mqtt_loop(PubSubClient& client);
+void mqtt_publish_state(PubSubClient& client, ThermostatMode mode, float targetTemp, bool heating);
+void mqtt_callback(char* topic, byte* payload, unsigned int length);
+
--- a/include/preset.h
+++ b/include/preset.h
@@ -0,0 +1,8 @@
+#pragma once
+#include <Arduino.h>
+#include "thermostat.h"
+
+void load_presets();
+void save_presets();
+float get_preset_temp(ThermostatMode mode);
+void set_preset_temp(ThermostatMode mode, float temp);
--- a/include/thermostat.h
+++ b/include/thermostat.h
@@ -0,0 +1,21 @@
+#pragma once
+#include <Arduino.h>
+
+enum ThermostatMode { MODE_OFF, MODE_CONFORT, MODE_ECO, MODE_BOOST, MODE_HORS_GEL };
+
+class Thermostat {
+public:
+    Thermostat();
+    void setMode(ThermostatMode mode);
+    void setTemperature(float temp);
+    void setPresetTemp(ThermostatMode mode, float temp);
+    void update(float currentTemp);
+    bool isHeating() const;
+    ThermostatMode getMode() const;
+    float getTargetTemp() const;
+private:
+    ThermostatMode mode;
+    float presetTemps[5];
+    float targetTemp;
+    bool heating;
+};
--- a/include/web_config.h
+++ b/include/web_config.h
@@ -0,0 +1,32 @@
+#pragma once
+#include <Arduino.h>
+
+void setup_web_config();
+void handle_web_config();
+bool should_save_config();
+void save_config();
+void load_config();
+
+#define CFG_STRLEN 64
+
+/**
+ * Config struct for EEPROM storage.
+ */
+struct ConfigData 
+{
+    char wifi_ssid[CFG_STRLEN];            // Wifi SSID
+    char wifi_pass[CFG_STRLEN];            // Wifi Password
+    char mqtt_server[CFG_STRLEN];          // MQTT Server
+    char mqtt_user[CFG_STRLEN];            // MQTT User
+    char mqtt_pass[CFG_STRLEN];            // MQTT Password
+    char temp_sensor_id[CFG_STRLEN];       // Temperature Sensor ID
+    char mqtt_device_id[CFG_STRLEN];       // MQTT Device ID
+    char mqtt_temp_topic[CFG_STRLEN];      // MQTT Temperature Topic
+    int mqtt_port;                         // MQTT Port
+    float preset_confort;                  // Confort Mode Temperature
+    float preset_eco;                      // Eco Mode Temperature
+    float preset_boost;                    // Boost Mode Temperature
+    float preset_hors_gel;                 // Hors Gel Mode Temperature
+};
+
+extern ConfigData config;
--- a/include/web_routes.h
+++ b/include/web_routes.h
@@ -0,0 +1,2 @@
+#pragma once
+void setup_web_routes();
--- a/include/web_server_instance.h
+++ b/include/web_server_instance.h
@@ -0,0 +1,4 @@
+#include <ESPAsyncWebServer.h>
+
+// Declare a global server instance on port 80
+extern AsyncWebServer server;
--- a/monitor.log
+++ b/monitor.log
@@ -0,0 +1,367 @@
+--- Terminal on /dev/ttyUSB0 | 115200 8-N-1
+--- Available filters and text transformations: debug, default, direct, esp8266_exception_decoder, hexlify, log2file, nocontrol, printable, send_on_enter, time
+--- More details at https://bit.ly/pio-monitor-filters
+--- Quit: Ctrl+C | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H
+␀
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C1388F5F89
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:8F:5F:89","mac_type":0,"adv_type":0,"rssi":-80,"servicedata":"895f8f38c1a462074d16e20a536b0e","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJW
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/43A69133165F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"43:A6:91:33:16:5F","mac_type":1,"adv_type":0,"rssi":-83,"servicedata":"0000000000000000000000000000000000000000","servicedatauuid":"0xfe9f"}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-66}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-82}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-88}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-86}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-82}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-66}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-82}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204010166e0036bf020bfe2036bf020be01580000000000","rssi":-66}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-87}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204010166e0036bf020bfe2036bf020be01580000000000","rssi":-74}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-81}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C13841E067
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:41:E0:67","mac_type":0,"adv_type":0,"rssi":-88,"servicedata":"a4c13841e067009542550b9bdd","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJWSD05
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C1388F5F89
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:8F:5F:89","mac_type":0,"adv_type":0,"rssi":-84,"servicedata":"895f8f38c1a465074d16e20a536c0e","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJW
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-91}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-81}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204010166e0036bf020bfe2036bf020be01580000000000","rssi":-74}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/43A69133165F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"43:A6:91:33:16:5F","mac_type":1,"adv_type":0,"rssi":-84,"servicedata":"0000000000000000000000000000000000000000","servicedatauuid":"0xfe9f"}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-66}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/43A69133165F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"43:A6:91:33:16:5F","mac_type":1,"adv_type":0,"rssi":-83,"servicedata":"0000000000000000000000000000000000000000","servicedatauuid":"0xfe9f"}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-90}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-81}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-87}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C1389ADA64
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:9A:DA:64","mac_type":0,"adv_type":0,"rssi":-63,"servicedata":"64da9a38c1a45907a316580a40e60e","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJW
+  -> OK! MQTT topic matches temp sensor ID. Processing message...
+  -> SUCCESS! Received tempc from MQTT: 18.81 °C
+Current temperature (polled): 18.81
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C138CF2D7E
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:CF:2D:7E","mac_type":0,"adv_type":0,"rssi":-84,"servicedata":"7e2dcf38c1a43208d812970a49f60e","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJW
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C13841E067
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:41:E0:67","mac_type":0,"adv_type":0,"rssi":-89,"servicedata":"a4c13841e067009542550b9bdd","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJWSD05
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-82}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-66}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-73}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-82}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C13841E067
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:41:E0:67","mac_type":0,"adv_type":0,"rssi":-81,"servicedata":"a4c13841e067009542550b9bdd","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJWSD05
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-90}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C1388F5F89
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:8F:5F:89","mac_type":0,"adv_type":0,"rssi":-81,"servicedata":"895f8f38c1a461074e16e20a536e0e","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJW
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-66}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-84}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/43A69133165F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"43:A6:91:33:16:5F","mac_type":1,"adv_type":0,"rssi":-83,"servicedata":"0000000000000000000000000000000000000000","servicedatauuid":"0xfe9f"}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C138CF2D7E
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:CF:2D:7E","mac_type":0,"adv_type":0,"rssi":-78,"servicedata":"7e2dcf38c1a43208d812970a49f60e","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJW
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-88}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/43A69133165F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"43:A6:91:33:16:5F","mac_type":1,"adv_type":0,"rssi":-83,"servicedata":"0000000000000000000000000000000000000000","servicedatauuid":"0xfe9f"}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-82}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-98}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-74}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-84}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"name":"[TV] Samsung AU7095 65 TV","manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-72}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-86}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C13841E067
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:41:E0:67","mac_type":0,"adv_type":0,"name":"ATC_41E067","rssi":-88,"servicedata":"a4c13841e067009542550b9bdd","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id"
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C1389ADA64
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:9A:DA:64","mac_type":0,"adv_type":0,"rssi":-68,"servicedata":"64da9a38c1a45a079a16580a40e70e","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJW
+  -> OK! MQTT topic matches temp sensor ID. Processing message...
+  -> SUCCESS! Received tempc from MQTT: 18.82 °C
+Current temperature (polled): 18.82
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-67}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-81}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-94}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-72}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-82}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-74}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-83}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C13841E067
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:41:E0:67","mac_type":0,"adv_type":0,"rssi":-86,"servicedata":"a4c13841e067009542550b9bdd","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJWSD05
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-96}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-93}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204010166e0036bf020bfe2036bf020be01580000000000","rssi":-72}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C1388F5F89
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:8F:5F:89","mac_type":0,"adv_type":0,"rssi":-80,"servicedata":"895f8f38c1a466074e16e30a53700e","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJW
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/43A69133165F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"43:A6:91:33:16:5F","mac_type":1,"adv_type":0,"rssi":-84,"servicedata":"0000000000000000000000000000000000000000","servicedatauuid":"0xfe9f"}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-83}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-82}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-67}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-94}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C1389ADA64
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:9A:DA:64","mac_type":0,"adv_type":0,"rssi":-69,"servicedata":"64da9a38c1a45b078f16590a40e90e","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJW
+  -> OK! MQTT topic matches temp sensor ID. Processing message...
+  -> SUCCESS! Received tempc from MQTT: 18.83 °C
+Current temperature (polled): 18.83
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-86}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204012066210f0002014101010001000000000000000006","rssi":-74}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-82}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C13841E067
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:41:E0:67","mac_type":0,"adv_type":0,"rssi":-84,"servicedata":"a4c13841e067009542550b9bdd","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJWSD05
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/43A69133165F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"43:A6:91:33:16:5F","mac_type":1,"adv_type":0,"rssi":-83,"servicedata":"0000000000000000000000000000000000000000","servicedatauuid":"0xfe9f"}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204010166e0036bf020bfe2036bf020be01580000000000","rssi":-67}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-87}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/43A69133165F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"43:A6:91:33:16:5F","mac_type":1,"adv_type":0,"rssi":-83,"servicedata":"0000000000000000000000000000000000000000","servicedatauuid":"0xfe9f"}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-81}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C13841E067
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:41:E0:67","mac_type":0,"adv_type":0,"rssi":-87,"servicedata":"a4c13841e067009542550b9bdd","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJWSD05
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-94}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/43A69133165F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"43:A6:91:33:16:5F","mac_type":1,"adv_type":0,"rssi":-83,"servicedata":"0000000000000000000000000000000000000000","servicedatauuid":"0xfe9f"}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-81}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204010166e0036bf020bfe2036bf020be01580000000000","rssi":-74}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C138CF2D7E
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:CF:2D:7E","mac_type":0,"adv_type":0,"rssi":-84,"servicedata":"7e2dcf38c1a42e08d712970a49f90e","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJW
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C1388F5F89
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:8F:5F:89","mac_type":0,"adv_type":0,"rssi":-80,"servicedata":"895f8f38c1a462074d16e30a53710e","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJW
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204010166e0036bf020bfe2036bf020be01580000000000","rssi":-67}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/66FC2A8FC38F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"66:FC:2A:8F:C3:8F","mac_type":1,"adv_type":0,"rssi":-87}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/A4C13841E067
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"A4:C1:38:41:E0:67","mac_type":0,"adv_type":0,"rssi":-85,"servicedata":"a4c13841e067009642550b9bde","servicedatauuid":"0x181a","brand":"Xiaomi","model":"TH Sensor","model_id":"LYWSD03MMC/MJWSD05
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-84}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/43A69133165F
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"43:A6:91:33:16:5F","mac_type":1,"adv_type":0,"rssi":-83,"servicedata":"0000000000000000000000000000000000000000","servicedatauuid":"0xfe9f"}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/E0036BF020BF
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"E0:03:6B:F0:20:BF","mac_type":0,"adv_type":0,"manufacturerdata":"75004204010166e0036bf020bfe2036bf020be01580000000000","rssi":-74}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
+Topic: home/OMG_ESP32_BLE/BTtoMQTT/6FF06B19BD96
+  Searching for: 'A4C1389ADA64' in topic
+  Payload: {"id":"6F:F0:6B:19:BD:96","mac_type":1,"adv_type":0,"rssi":-84}
+  -> MQTT topic does not match expected temp sensor ID. Ignoring message.
--- a/platformio.ini
+++ b/platformio.ini
@@ -0,0 +1,16 @@
+[env:sonoff_basic]
+platform = espressif8266
+board = sonoff_basic
+framework = arduino
+monitor_speed = 115200
+; upload_protocol = espota
+; upload_port = 192.168.1.95
+upload_speed = 115200
+build_flags = 
+  -DPIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY
+  -DMQTT_MAX_PACKET_SIZE=512
+lib_deps =
+  knolleary/PubSubClient
+  tzapu/WiFiManager
+  bblanchon/ArduinoJson
+  me-no-dev/ESPAsyncWebServer
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -0,0 +1,151 @@
+#include <Arduino.h>
+#include <ESP8266WiFi.h>
+#include <PubSubClient.h>
+#include <Ticker.h>
+#include <ArduinoOTA.h>
+#include "thermostat.h"
+#include "mqtt_handler.h"
+#include "web_config.h"
+#include "preset.h"
+#include "web_routes.h"
+#include "main.h"
+
+#include "web_server_instance.h"
+
+WiFiClient espClient;
+PubSubClient mqttClient(espClient);
+Thermostat thermostat;
+Ticker ledTicker;
+
+float currentTemp = 0.0;
+float oldTemp = 0.0;
+
+#define LED_PIN 13  // Sonoff Basic LED pin
+
+// Toggle LED state
+void toggleLED() {
+    digitalWrite(LED_PIN, !digitalRead(LED_PIN));
+}
+
+/**
+ * Initialize serial, load configuration and presets, connect to WiFi and MQTT, and set up the thermostat.
+ * 
+ */
+void setup() {
+    int i;
+    // Turn on LED to indicate startup (will turn off when setup is complete)
+    pinMode(LED_PIN, OUTPUT);
+    pinMode(RELAY_PIN, OUTPUT);
+    // Start with LED ON to indicate startup
+    digitalWrite(LED_PIN, LOW);
+    digitalWrite(RELAY_PIN, HIGH); // Ensure relay is off at startup
+    ledTicker.attach(0.2, toggleLED);
+
+    Serial.begin(115200);
+    i=0;    
+
+    // Retrieve config from EEPROM, connect to WiFi and MQTT, and set up thermostat presets
+    load_config();
+    // Debug: print current config and actions
+    Serial.println("Thermostat Unit Startup - Version 1.0");
+    // Serial.print("WiFi SSID: "); Serial.println(config.wifi_ssid);
+    // Serial.print("MQTT Server: "); Serial.println(config.mqtt_server);
+    // Serial.print("MQTT Port: "); Serial.println(config.mqtt_port);
+    // Serial.print("MQTT User: "); Serial.println(config.mqtt_user);
+    // Serial.print("MQTT Device ID: "); Serial.println(config.mqtt_device_id);
+    // Serial.print("MQTT Temp Topic: "); Serial.println(config.mqtt_temp_topic);
+    // Serial.print("Temp Sensor ID: "); Serial.println(config.temp_sensor_id);
+    // Serial.print("Preset Confort: "); Serial.println(config.preset_confort);
+    // Serial.print("Preset Eco: "); Serial.println(config.preset_eco);
+    // Serial.print("Preset Boost: "); Serial.println(config.preset_boost);
+    // Serial.print("Preset Hors Gel: "); Serial.println(config.preset_hors_gel);
+
+    Serial.println("Connecting to WiFi...");
+    // setup wifi and mqtt, and load presets into thermostat
+    WiFi.begin(config.wifi_ssid, config.wifi_pass);
+    // Display wifi config
+    i=0;
+    while (WiFi.status() != WL_CONNECTED) {
+        
+        Serial.print(".");
+        i++;
+        if (i > 30) { // After 30 seconds of trying to connect, start config portal
+            Serial.println("\nFailed to connect to WiFi. Starting config portal...");
+            ledTicker.attach(0.5, toggleLED);
+            setup_web_config();
+            break;  
+        }
+        delay(1000);
+    }
+    Serial.println("\nConnected to WiFi!");
+    ledTicker.detach();
+    digitalWrite(LED_PIN, LOW);
+    // Display IP
+    Serial.print("IP Address: ");
+    Serial.println(WiFi.localIP());
+    setup_web_routes();
+    server.begin();
+    Serial.println("Connecting to MQTT...");
+    mqttClient.setServer(config.mqtt_server, config.mqtt_port);
+    mqttClient.setCallback(mqtt_callback);
+    
+    // Display MQTT buffer size
+    Serial.print("MQTT buffer size: ");
+    Serial.print(mqttClient.getBufferSize());
+    Serial.println(" bytes");
+    
+    Serial.print("MQTT Client configured. Attempting to connect...");
+    mqttClient.connect(config.mqtt_device_id, config.mqtt_user, config.mqtt_pass);
+
+    if (mqttClient.connected()) {
+        Serial.println("MQTT Connected!");
+        // Subscribe with wildcard to get all sensors
+        String topic = String(config.mqtt_temp_topic) + "/#";
+        Serial.print("Subscribing to topic: ");
+        Serial.println(topic);
+        bool subResult = mqttClient.subscribe(topic.c_str());
+        Serial.print("Subscription result: ");
+        Serial.println(subResult ? "SUCCESS" : "FAILED");
+    } else {
+        Serial.print("MQTT Connection FAILED, state: ");
+        Serial.println(mqttClient.state());
+    }
+    
+    // Start LED blinking to indicate normal operation (blink every 2 seconds)
+    ledTicker.attach(2.0, toggleLED);
+    
+    Serial.println("Setup complete. Entering main loop...");
+    
+    delay(1000); // Short delay to ensure LED state is visible before turning off
+    digitalWrite(RELAY_PIN, HIGH); // Ensure relay is on
+    delay(1000); // Short delay to ensure relay state is stable before turning off LED
+    digitalWrite(RELAY_PIN, LOW);
+    // Publsh initial state to MQTT to inform Home Assistant of current thermostat status on startup
+    
+    mqtt_publish_state(mqttClient, thermostat.getMode(), thermostat.getTargetTemp(), thermostat.isHeating());
+}
+
+int j = 0;
+void loop() 
+{
+    // Handle OTA updates
+    ArduinoOTA.handle();
+    
+    // Ask Mqtt to process incoming messages and maintain connection
+    mqtt_loop(mqttClient);
+    
+    // Poll the current temperature (updated asynchronously by MQTT callback)
+    if (currentTemp != oldTemp) {
+        Serial.print("Temperature change detected: ");
+        Serial.println(currentTemp);
+        oldTemp = currentTemp;
+    }
+    
+    // // Update thermostat state based on current temp and publish state to MQTT
+    // thermostat.update(currentTemp);
+    // // Publish state to MQTT every second (or on state change, if you want to optimize)
+    // mqtt_publish_state(mqttClient, thermostat.getMode(), thermostat.getTargetTemp(), thermostat.isHeating());
+    // // Delay to avoid flooding MQTT with messages. Adjust as needed for your use case (e.g., publish on state change 
+    // // instead of every loop).
+    delay(10);
+}
--- a/src/mqtt_handler.cpp
+++ b/src/mqtt_handler.cpp
@@ -0,0 +1,103 @@
+
+#include "mqtt_handler.h"
+#include "thermostat.h"
+#include <ArduinoJson.h>
+#include "web_config.h"
+
+// Helper function to normalize MAC address (remove colons, convert to uppercase)
+String normalizeMac(const char* mac) {
+    String normalized = "";
+    for (int i = 0; mac[i] != '\0'; i++) {
+        if (mac[i] != ':') {
+            normalized += (char)toupper(mac[i]);
+        }
+    }
+    return normalized;
+}
+
+// Variables now defined in web_config.cpp
+
+// Process incoming MQTT messages asynchronously
+// The callback (mqtt_callback) is invoked automatically when messages arrive
+void mqtt_loop(PubSubClient& client) {
+    client.loop();
+}
+
+
+void mqtt_publish_state(PubSubClient& client, ThermostatMode mode, float targetTemp, bool heating) {
+    JsonDocument doc;
+    doc["mode"] = mode;
+    doc["target"] = targetTemp;
+    doc["heating"] = heating;
+    char buf[128];
+    size_t n = serializeJson(doc, buf);
+    String topic = String("home/thermostat/") + String(config.mqtt_device_id) + String("/state");
+    client.publish(topic.c_str(), buf, n);
+}
+
+void mqtt_callback(char* topic, byte* payload, unsigned int length) 
+{
+    static bool first_call = true;
+    static String normalized_sensor_id;
+    
+    if (first_call) {
+        // Serial.print("Looking for sensor ID: ");
+        // Serial.println(config.temp_sensor_id);
+        
+        // FIX: Normalize the sensor ID to match topic format
+        // Topics come as: home/OMG_ESP32_BLE/BTtoMQTT/A4C1389ADA64 (no colons, uppercase)
+        // Config may have: A4:C1:38:9A:DA:64 (with colons)
+        // Solution: Remove colons and convert to uppercase for comparison
+        normalized_sensor_id = normalizeMac(config.temp_sensor_id);
+        
+        // TESTING: Uncomment to test with a sensor that's actually broadcasting
+        // normalized_sensor_id = "A4C1389ADA64";  // Your Xiaomi (NOT broadcasting)
+        // normalized_sensor_id = "E0036BF020BF";  // Test with active sensor
+        // normalized_sensor_id = "74CBD1F131B6";  // Test with active sensor
+        
+        // Serial.print("Normalized sensor ID: ");
+        // Serial.println(normalized_sensor_id);
+        first_call = false;
+    }
+    
+    // Serial.print("Topic: ");
+    // Serial.println(topic);
+    
+    // Debug: Print what we're comparing
+    // Serial.print("  Searching for: '");
+    // Serial.print(normalized_sensor_id);
+    // Serial.println("' in topic");
+    
+    // Print payload for debugging (first 200 chars)
+    // Serial.print("  Payload: ");
+    // for (unsigned int i = 0; i < length && i < 200; i++) {
+    //     Serial.write(payload[i]);
+    // }
+    // Serial.println();
+
+    // Check if topic contains the normalized sensor ID
+    if(strstr(topic, normalized_sensor_id.c_str()) == nullptr) {
+        // Serial.println("  -> MQTT topic does not match expected temp sensor ID. Ignoring message.");
+        return;
+    }
+    
+    // Parse JSON payload from subscribed topic
+    JsonDocument doc;
+    // Serial.println("  -> OK! MQTT topic matches temp sensor ID. Processing message...");
+    DeserializationError err = deserializeJson(doc, payload, length);
+    if (err) {
+        Serial.print("  -> MQTT JSON parse error: ");
+        Serial.println(err.c_str());
+        return;
+    }
+    
+    // Check for temperature field
+    if (doc["tempc"].is<float>()) {
+        currentTemp = doc["tempc"].as<float>();
+        // Serial.print("  -> SUCCESS! Received tempc from MQTT: ");
+        // Serial.print(currentTemp);
+        // Serial.println(" °C");
+    } else {
+        Serial.println("  -> WARNING: No 'tempc' field found in JSON payload");
+    }
+}
--- a/src/preset.cpp
+++ b/src/preset.cpp
@@ -0,0 +1,39 @@
+#include "preset.h"
+#include <EEPROM.h>
+
+static float presets[5] = {0, 20.0, 17.0, 22.0, 7.0};
+#define PRESET_EEPROM_START 0
+#define PRESET_COUNT 5
+#define PRESET_EEPROM_SIZE (PRESET_COUNT * sizeof(float))
+
+void load_presets() {
+    EEPROM.begin(PRESET_EEPROM_SIZE);
+    bool valid = true;
+    for (int i = 0; i < PRESET_COUNT; ++i) {
+        float value = 0;
+        EEPROM.get(PRESET_EEPROM_START + i * sizeof(float), value);
+        // Check for uninitialized EEPROM (NaN or out of range)
+        if (isnan(value) || value < 0 || value > 50) {
+            valid = false;
+            break;
+        }
+        presets[i] = value;
+    }
+    if (!valid) {
+        // If invalid, write defaults
+        save_presets();
+    }
+}
+void save_presets() {
+    for (int i = 0; i < PRESET_COUNT; ++i) {
+        EEPROM.put(PRESET_EEPROM_START + i * sizeof(float), presets[i]);
+    }
+    EEPROM.commit();
+}
+float get_preset_temp(ThermostatMode mode) {
+    return presets[mode];
+}
+void set_preset_temp(ThermostatMode mode, float temp) {
+    presets[mode] = temp;
+    save_presets();
+}
--- a/src/thermostat.cpp
+++ b/src/thermostat.cpp
@@ -0,0 +1,50 @@
+#include "thermostat.h"
+
+Thermostat::Thermostat() : mode(MODE_OFF), targetTemp(0), heating(false) {
+    presetTemps[MODE_CONFORT] = 20.0;
+    presetTemps[MODE_ECO] = 17.0;
+    presetTemps[MODE_BOOST] = 22.0;
+    presetTemps[MODE_HORS_GEL] = 7.0;
+    presetTemps[MODE_OFF] = 0.0;
+}
+
+/**
+ * Set the thermostat mode. This will automatically update the target temperature to the preset for that mode.
+ */
+void Thermostat::setMode(ThermostatMode m) {
+    mode = m;
+    targetTemp = presetTemps[mode];
+}
+
+/**
+ * Manually set the target temperature. This does not change the mode or presets, but will override the preset for the 
+ * current mode until the mode is changed again.
+ */
+void Thermostat::setTemperature(float temp) {
+    targetTemp = temp;
+}
+
+/**
+ * Set the preset temperature for a specific mode. If the current mode is the one being updated, also update the 
+ * target temperature.
+ */
+void Thermostat::setPresetTemp(ThermostatMode m, float temp) {
+    presetTemps[m] = temp;
+    if (mode == m) targetTemp = temp;
+}
+
+/**
+ * Update the heating state based on the current temperature and target temperature.
+ * this is real simple logic: if current temp is below target, turn on heating, otherwise turn it off. In a real system, you would want to add some hysteresis to prevent rapid on/off cycling.
+ */
+void Thermostat::update(float currentTemp) {
+    if (mode == MODE_OFF) {
+        heating = false;
+    } else {
+        heating = (currentTemp < targetTemp);
+    }
+}
+
+bool Thermostat::isHeating() const { return heating; }
+ThermostatMode Thermostat::getMode() const { return mode; }
+float Thermostat::getTargetTemp() const { return targetTemp; }
--- a/src/web_config.cpp
+++ b/src/web_config.cpp
@@ -0,0 +1,126 @@
+
+#include "web_config.h"
+#include <WiFiManager.h>
+#include <EEPROM.h>
+
+
+// String wifi_ssid, wifi_pass, mqtt_server, mqtt_user, mqtt_pass, temp_sensor_id;
+// String mqtt_device_id = "thermo1";
+// String mqtt_temp_topic = "home/room/temperature/thermo1";
+// int mqtt_port = 1883;
+// float preset_confort = 21.0, preset_eco = 18.0, preset_boost = 23.0, preset_hors_gel = 7.0;
+bool shouldSaveConfigFlag = false;
+
+#define CFG_EEPROM_START 100
+#define CFG_EEPROM_SIZE 512
+
+
+
+
+ConfigData config;  // Global config variable to hold current config in memory. 
+                    //  This is what is read/written to EEPROM, and used by the rest of the code.
+/** 
+ * Config saving. In a production system, consider adding error handling and validation (e.g., check string lengths, 
+ * valid port range, etc.).
+ * NB: config is stored as a struct for simplicity, 
+ */
+void save_config() {
+    // Save config to EEPROM
+    EEPROM.begin(CFG_EEPROM_START + sizeof(ConfigData));
+    EEPROM.put(CFG_EEPROM_START, config);
+    EEPROM.commit();
+    // Reboot device to apply new config (e.g., reconnect to WiFi with new credentials)
+    ESP.restart();
+}
+
+/**
+ * Config loading from EEPROM. 
+ * NB: config is stored as a struct for simplicity.
+ * 
+ */
+void load_config() {
+    EEPROM.begin(CFG_EEPROM_START + sizeof(ConfigData));
+    EEPROM.get(CFG_EEPROM_START, config);
+}
+
+/**
+ * Web config setup. This will block until WiFi is configured, which is fine for initial setup but may not be ideal 
+ * for all use cases.
+ * 
+ * If config parameters are defined in EEPROm, try to connect to WiFi. If connection fails, start config portal. 
+ * If parameters are not defined, start config portal directly.
+ * On config save, set shouldSaveConfigFlag to true so that main loop can save the config to EEPROM. 
+ * This is a bit of a hack, but it allows us to avoid blocking the main loop while waiting for user input.
+ */
+void setup_web_config() {
+    WiFiManager wm;
+
+    // WiFiManagerParameter: id, placeholder, default, length
+    WiFiManagerParameter custom_mqtt_server("mqtt_server", "MQTT Server", config.mqtt_server, CFG_STRLEN);
+    WiFiManagerParameter custom_mqtt_port("mqtt_port", "MQTT Port", String(config.mqtt_port).c_str(), 6);
+    WiFiManagerParameter custom_mqtt_user("mqtt_user", "MQTT User", config.mqtt_user, CFG_STRLEN);
+    WiFiManagerParameter custom_mqtt_pass("mqtt_pass", "MQTT Password", config.mqtt_pass, CFG_STRLEN);
+    WiFiManagerParameter custom_temp_sensor_id("temp_sensor_id", "Temp Sensor ID", config.temp_sensor_id, CFG_STRLEN);
+    WiFiManagerParameter custom_mqtt_device_id("mqtt_device_id", "MQTT Device ID", config.mqtt_device_id, CFG_STRLEN);
+    WiFiManagerParameter custom_mqtt_temp_topic("mqtt_temp_topic", "MQTT Temp Topic", config.mqtt_temp_topic, CFG_STRLEN);
+    WiFiManagerParameter custom_preset_confort("preset_confort", "Preset Confort", String(config.preset_confort).c_str(), 8);
+    WiFiManagerParameter custom_preset_eco("preset_eco", "Preset Eco", String(config.preset_eco).c_str(), 8);
+    WiFiManagerParameter custom_preset_boost("preset_boost", "Preset Boost", String(config.preset_boost).c_str(), 8);
+    WiFiManagerParameter custom_preset_hors_gel("preset_hors_gel", "Preset Hors Gel", String(config.preset_hors_gel).c_str(), 8);
+
+    wm.addParameter(&custom_mqtt_server);
+    wm.addParameter(&custom_mqtt_port);
+    wm.addParameter(&custom_mqtt_user);
+    wm.addParameter(&custom_mqtt_pass);
+    wm.addParameter(&custom_temp_sensor_id);
+    wm.addParameter(&custom_mqtt_device_id);
+    wm.addParameter(&custom_mqtt_temp_topic);
+    wm.addParameter(&custom_preset_confort);
+    wm.addParameter(&custom_preset_eco);
+    wm.addParameter(&custom_preset_boost);
+    wm.addParameter(&custom_preset_hors_gel);
+
+    wm.setSaveConfigCallback([]() {
+        shouldSaveConfigFlag = true;
+    });
+
+    if (!wm.autoConnect("ThermostatConfig")) {
+        // If failed to connect or configure, restart or handle error
+        ESP.restart();
+    }
+
+    // Always update WiFi credentials after connection
+    String ssid = WiFi.SSID();
+    String pass = WiFi.psk();
+    ssid.toCharArray(config.wifi_ssid, CFG_STRLEN);
+    pass.toCharArray(config.wifi_pass, CFG_STRLEN);
+
+    // If config was changed, update variables and save
+    if (shouldSaveConfigFlag) {
+        strncpy(config.mqtt_server, custom_mqtt_server.getValue(), CFG_STRLEN);
+        config.mqtt_server[CFG_STRLEN-1] = '\0';
+        config.mqtt_port = String(custom_mqtt_port.getValue()).toInt();
+        strncpy(config.mqtt_user, custom_mqtt_user.getValue(), CFG_STRLEN);
+        config.mqtt_user[CFG_STRLEN-1] = '\0';
+        strncpy(config.mqtt_pass, custom_mqtt_pass.getValue(), CFG_STRLEN);
+        config.mqtt_pass[CFG_STRLEN-1] = '\0';
+        strncpy(config.temp_sensor_id, custom_temp_sensor_id.getValue(), CFG_STRLEN);
+        config.temp_sensor_id[CFG_STRLEN-1] = '\0';
+        strncpy(config.mqtt_device_id, custom_mqtt_device_id.getValue(), CFG_STRLEN);
+        config.mqtt_device_id[CFG_STRLEN-1] = '\0';
+        strncpy(config.mqtt_temp_topic, custom_mqtt_temp_topic.getValue(), CFG_STRLEN);
+        config.mqtt_temp_topic[CFG_STRLEN-1] = '\0';
+        config.preset_confort = String(custom_preset_confort.getValue()).toFloat();
+        config.preset_eco = String(custom_preset_eco.getValue()).toFloat();
+        config.preset_boost = String(custom_preset_boost.getValue()).toFloat();
+        config.preset_hors_gel = String(custom_preset_hors_gel.getValue()).toFloat();
+        save_config();
+        shouldSaveConfigFlag = false;
+    }
+}
+
+void handle_web_config() {
+    // No-op: all web server logic moved to web_routes.cpp
+}
+
+bool should_save_config() { return shouldSaveConfigFlag; }
--- a/src/web_routes.cpp
+++ b/src/web_routes.cpp
@@ -0,0 +1,126 @@
+#include <ESPAsyncWebServer.h>
+#include "web_server_instance.h"
+#include "web_config.h"
+#include <string.h>
+
+const char* config_html_template = R"HTML(
+<html>
+<head>
+<meta name='viewport' content='width=device-width, initial-scale=1'>
+<style>
+body { font-family: Arial, sans-serif; background: #f7f7f7; margin: 0; padding: 0; }
+.container { max-width: 400px; margin: 30px auto; background: #fff; border-radius: 8px; box-shadow: 0 2px 8px #ccc; padding: 20px; }
+h2 { text-align: center; color: #333; }
+form { display: flex; flex-direction: column; }
+label { margin-top: 12px; color: #555; font-size: 1em; }
+input[type='text'], input[type='password'], input[type='number'] {
+    padding: 8px; margin-top: 4px; border: 1px solid #ccc; border-radius: 4px; font-size: 1em;
+}
+input[type='submit'] {
+    margin-top: 18px; padding: 12px; background: #007bff; color: #fff; border: none; border-radius: 4px; font-size: 1.1em; cursor: pointer;
+}
+input[type='submit']:active { background: #0056b3; }
+</style>
+</head>
+<body>
+<div class='container'>
+<h2>Thermostat Config</h2>
+<form method='POST' action='/config'>
+<label>WiFi SSID:</label><input name='wifi_ssid' type='text' value='%WIFI_SSID%'>
+<label>WiFi Pass:</label><input name='wifi_pass' type='password' value='%WIFI_PASS%'>
+<label>MQTT Server:</label><input name='mqtt_server' type='text' value='%MQTT_SERVER%'>
+<label>MQTT User:</label><input name='mqtt_user' type='text' value='%MQTT_USER%'>
+<label>MQTT Pass:</label><input name='mqtt_pass' type='password' value='%MQTT_PASS%'>
+<label>Temp Sensor ID:</label><input name='temp_sensor_id' type='text' value='%TEMP_SENSOR_ID%'>
+<label>MQTT Device ID:</label><input name='mqtt_device_id' type='text' value='%MQTT_DEVICE_ID%'>
+<label>MQTT Temp Topic:</label><input name='mqtt_temp_topic' type='text' value='%MQTT_TEMP_TOPIC%'>
+<label>MQTT Port:</label><input name='mqtt_port' type='number' value='%MQTT_PORT%'>
+<label>Preset Confort:</label><input name='preset_confort' type='number' step='0.1' value='%PRESET_CONFORT%'>
+<label>Preset Eco:</label><input name='preset_eco' type='number' step='0.1' value='%PRESET_ECO%'>
+<label>Preset Boost:</label><input name='preset_boost' type='number' step='0.1' value='%PRESET_BOOST%'>
+<label>Preset Hors Gel:</label><input name='preset_hors_gel' type='number' step='0.1' value='%PRESET_HORS_GEL%'>
+<input type='submit' value='Save'>
+</form>
+</div>
+</body>
+</html>
+)HTML";
+
+String render_config_html() {
+        String html(config_html_template);
+        html.replace("%WIFI_SSID%", String(config.wifi_ssid));
+        html.replace("%WIFI_PASS%", String(config.wifi_pass));
+        html.replace("%MQTT_SERVER%", String(config.mqtt_server));
+        html.replace("%MQTT_USER%", String(config.mqtt_user));
+        html.replace("%MQTT_PASS%", String(config.mqtt_pass));
+        html.replace("%TEMP_SENSOR_ID%", String(config.temp_sensor_id));
+        html.replace("%MQTT_DEVICE_ID%", String(config.mqtt_device_id));
+        html.replace("%MQTT_TEMP_TOPIC%", String(config.mqtt_temp_topic));
+        html.replace("%MQTT_PORT%", String(config.mqtt_port));
+        html.replace("%PRESET_CONFORT%", String(config.preset_confort));
+        html.replace("%PRESET_ECO%", String(config.preset_eco));
+        html.replace("%PRESET_BOOST%", String(config.preset_boost));
+        html.replace("%PRESET_HORS_GEL%", String(config.preset_hors_gel));
+        return html;
+}
+
+void setup_web_routes() {
+    // Serve config form at / and /config
+    server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
+        request->send(200, "text/html", render_config_html());
+    });
+    server.on("/config", HTTP_GET, [](AsyncWebServerRequest *request){
+        request->send(200, "text/html", render_config_html());
+    });
+    server.on("/config", HTTP_POST, [](AsyncWebServerRequest *request){
+        if (request->hasParam("wifi_ssid", true)) {
+            strncpy(config.wifi_ssid, request->getParam("wifi_ssid", true)->value().c_str(), CFG_STRLEN);
+            config.wifi_ssid[CFG_STRLEN-1] = '\0';
+        }
+        if (request->hasParam("wifi_pass", true)) {
+            strncpy(config.wifi_pass, request->getParam("wifi_pass", true)->value().c_str(), CFG_STRLEN);
+            config.wifi_pass[CFG_STRLEN-1] = '\0';
+        }
+        if (request->hasParam("mqtt_server", true)) {
+            strncpy(config.mqtt_server, request->getParam("mqtt_server", true)->value().c_str(), CFG_STRLEN);
+            config.mqtt_server[CFG_STRLEN-1] = '\0';
+        }
+        if (request->hasParam("mqtt_user", true)) {
+            strncpy(config.mqtt_user, request->getParam("mqtt_user", true)->value().c_str(), CFG_STRLEN);
+            config.mqtt_user[CFG_STRLEN-1] = '\0';
+        }
+        if (request->hasParam("mqtt_pass", true)) {
+            strncpy(config.mqtt_pass, request->getParam("mqtt_pass", true)->value().c_str(), CFG_STRLEN);
+            config.mqtt_pass[CFG_STRLEN-1] = '\0';
+        }
+        if (request->hasParam("temp_sensor_id", true)) {
+            strncpy(config.temp_sensor_id, request->getParam("temp_sensor_id", true)->value().c_str(), CFG_STRLEN);
+            config.temp_sensor_id[CFG_STRLEN-1] = '\0';
+        }
+        if (request->hasParam("mqtt_device_id", true)) {
+            strncpy(config.mqtt_device_id, request->getParam("mqtt_device_id", true)->value().c_str(), CFG_STRLEN);
+            config.mqtt_device_id[CFG_STRLEN-1] = '\0';
+        }
+        if (request->hasParam("mqtt_temp_topic", true)) {
+            strncpy(config.mqtt_temp_topic, request->getParam("mqtt_temp_topic", true)->value().c_str(), CFG_STRLEN);
+            config.mqtt_temp_topic[CFG_STRLEN-1] = '\0';
+        }
+        if (request->hasParam("mqtt_port", true)) {
+            config.mqtt_port = request->getParam("mqtt_port", true)->value().toInt();
+        }
+        if (request->hasParam("preset_confort", true)) {
+            config.preset_confort = request->getParam("preset_confort", true)->value().toFloat();
+        }
+        if (request->hasParam("preset_eco", true)) {
+            config.preset_eco = request->getParam("preset_eco", true)->value().toFloat();
+        }
+        if (request->hasParam("preset_boost", true)) {
+            config.preset_boost = request->getParam("preset_boost", true)->value().toFloat();
+        }
+        if (request->hasParam("preset_hors_gel", true)) {
+            config.preset_hors_gel = request->getParam("preset_hors_gel", true)->value().toFloat();
+        }
+        save_config();
+        request->send(200, "text/html", "<html><body><h2>Config Saved!</h2><a href='/config'>Back</a></body></html>");
+    });
+}
--- a/src/web_server_instance.cpp
+++ b/src/web_server_instance.cpp
@@ -0,0 +1,3 @@
+#include <ESPAsyncWebServer.h>
+
+AsyncWebServer server(80); // Global server instance