Web-Based Remote for Havells Smart Bulb (Tuya Powered)

I built a custom web-based remote to control my Havells smart bulb, which is powered by Tuya. The official app works fine, but I wanted the flexibility of controlling my bulb through a browser — so I made one.

🔧 Tech Stack

• Backend: Node.js + Express
• Frontend: Vanilla JavaScript, HTML, CSS

✅ Features

• Power on/off control
• Brightness adjustment
• White temperature control (0–1000 scale)
• HSV color picker for full RGB spectrum
• Responsive UI that works across desktop and mobile
• Visual slider-based controls with real-time feedback

🌐 Tuya Integration

To communicate with the bulb, I used Tuya’s Cloud APIs. The setup involved:

1. Registering a cloud project at Tuya IoT Console
2. Linking my smart bulb to the project using the Tuya Smart app
3. Using the following credentials:
   • access_key
   • secret_key
   • device_id

Once configured, my backend authenticated with Tuya and sent device commands using Tuya's standard data point (DP) codes like:

• switch_led
• bright_value_v2
• temp_value_v2
• work_mode
• colour_data (HSV)

📸 Preview

🚀 Run Locally

1. Clone the repo
2. Install dependencies
   npm install
3. Create a .env file with your Tuya credentials: ACCESS_ID=your_access_key ACCESS_SECRET=your_secret_key DEVICE_ID=your_device_id 4.Start the server node index.js 5.Open the browser and go to http://localhost:3000