Control Appliances with Your Voice: Arduino Uno & HC-05 Voice Control Kit

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Imagine walking into your room and commanding appliances by name — no switches, no remotes, just your voice. This kit translates that into reality using an Arduino Uno, an HC-05 Bluetooth module, and a 4-channel relay. You’ll build a system that listens for voice commands from an Android app, maps keywords like “light” or “fan”, and physically switches AC or DC loads. It’s a complete project for engineering students preparing for hackathons, final-year submissions, or anyone curious about bridging software and hardware in home automation.

What You'll Build

You’ll wire up an Arduino Uno, HC-05, and a 4-channel relay module to control up to four real appliances by name. A companion Android app (built with MIT App Inventor) sends voice commands over Bluetooth; the Arduino parses them, activates the matching relay, and updates the I2C-connected 16x2 LCD with appliance status. The kit includes 1N4007 protection diodes and a 12V adapter so you can safely drive high-voltage devices.

What You'll Learn

• Interface the HC-05 Bluetooth module with Arduino Uno and receive voice commands from an Android app.
• Control 230V appliances safely using relay modules with flyback diode protection.
• Implement keyword-based voice command mapping in Arduino C++ to trigger specific relay channels.
• Display real-time on/off status on a 16x2 I2C LCD.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This advanced kit is designed for B.Tech ECE and EEE students tackling home automation projects, Smart India Hackathon teams, and makers at IIT, NIT, VIT, or BITS campuses who want a working prototype fast. It’s also ideal for robotics clubs and hobbyists who have basic Arduino experience and want to explore Bluetooth voice control without hunting for compatible components.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.