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README.md

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+# AC Infinity Dashboard & Logger
+
+This project logs data from AC Infinity controllers (via the Cloud API) and visualizes it on a local web dashboard.
+
+## Features
+-   **Data Logging**: Polls AC Infinity API every 60 seconds (Temperature, Humidity, VPD, Fan Speed, Light Level).
+-   **Dashboard**: Local web interface offering historical charts (Day, Week, Month).
+-   **Device Types**: Automatically detects Fans and Lights.
+
+## Installation
+1.  Navigate to the project directory:
+    ```bash
+    cd /home/seb/src/actest
+    ```
+2.  Install dependencies:
+    ```bash
+    npm install
+    ```
+3.  Ensure `.env` exists with your AC Infinity credentials:
+    ```
+    AC_EMAIL=your_email
+    AC_PASSWORD=your_password
+    ```
+
+## Usage
+
+**Start the Application (Recommended):**
+Use PM2 to run the server in the background:
+```bash
+pm2 start server.js -n acdash
+```
+
+**Manual Start:**
+```bash
+node server.js
+```
+
+## Access
+-   **Dashboard URL**: `http://127.0.0.1:3905`
+-   **Nginx Proxy**: If configured (see `nginx_integration.md`), access via `https://your-domain.com/ac/`
+
+## Files
+-   `server.js`: Combined application (Web Server + Data Daemon).
+-   `ac_data.db`: SQLite database storing all sensor readings.
+-   `public/`: Frontend assets (HTML, JS, CSS).