fix: topic update

README.md

@@ -32,6 +32,7 @@ An automatic server fan controller built on the ESP32-C3, featuring temperature-
 | `GND` | DHT22 GND, OLED GND, Relay GND |
 
 Relay wiring:
+
 - **COM** → USB 5V
 - **NO** → Fan + (red wire)
 - Fan − (black wire) → GND
@@ -61,9 +62,9 @@ Edit these defines in `fan_controller.ino`:
 
 | Topic | Direction | Payload |
 |---|---|---|
-| `esp32c3/temperature` | Publish | `23.5` (°C) |
-| `esp32c3/humidity` | Publish | `41` (%) |
-| `esp32c3/fan/state` | Publish | `ON` / `OFF` |
+| `esp32c3_fan/temperature` | Publish | `23.5` (°C) |
+| `esp32c3_fan/humidity` | Publish | `41` (%) |
+| `esp32c3_fan/fan/state` | Publish | `ON` / `OFF` |
 
 ## Home Assistant Setup
 
@@ -74,20 +75,20 @@ mqtt:
   sensor:
     - name: "Room Temperature"
       unique_id: "esp32c3_temperature"
-      state_topic: "esp32c3/temperature"
+      state_topic: "esp32c3_fan/temperature"
       unit_of_measurement: "°C"
       device_class: temperature
 
     - name: "Room Humidity"
       unique_id: "esp32c3_humidity"
-      state_topic: "esp32c3/humidity"
+      state_topic: "esp32c3_fan/humidity"
       unit_of_measurement: "%"
       device_class: humidity
 
   binary_sensor:
     - name: "Server Fan"
       unique_id: "esp32c3_fan"
-      state_topic: "esp32c3/fan/state"
+      state_topic: "esp32c3_fan/fan/state"
       payload_on: "ON"
       payload_off: "OFF"
       device_class: running