Voice-Controlled Home Automation: Bluetooth Audio Receiver Kit with Arduino Uno & HC-05

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

Transform your home into a voice-responsive environment. This kit lets you build a custom Bluetooth audio receiver that decodes spoken commands and controls up to four appliances—lights, fans, or motors—by name. No cloud dependency; everything runs locally between your Android device and Arduino. In about 5 hours, you’ll have a fully functional voice-activated relay box that listens for keywords like “fan on” or “light off” via a companion Android app and switches real appliances accordingly.

What You'll Build

A complete voice controlled appliance system. Speak “turn on kitchen light” into your Android app, and the corresponding relay activates instantly. The 16x2 LCD shows real-time status of each channel—perfect for debugging or demonstrating in a lab. You’ll create a personalized keyword-to-relay mapping, so you can command specific names like “study lamp,” “cooler,” or even “pump.” All components are pre‑selected to work together, eliminating the guesswork of sourcing compatible parts.

What You'll Learn

• Integrate HC‑05 Bluetooth module with Arduino for serial command parsing from voice recognition apps.
• Design a keyword‑to‑relay mapping algorithm that triggers specific 4‑channel relays based on speech output.
• Troubleshoot electrical isolation using 1N4007 diodes to prevent relay‑induced voltage spikes from damaging the Arduino.
• Interface a 16x2 LCD with I2C backpack to display system status, command logs, and real‑time relay states.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This advanced kit is tailor‑made for B.Tech ECE/EEE students who need a voice‑controlled automation project for semester submissions or the Smart India Hackathon. ATL Tinkering Lab mentors guiding higher‑level prototypes will appreciate the plug‑and‑play integration. IIT, NIT, VIT, and BITS undergraduates can use it as a foundation for IoT home automation research, demonstrating real‑time appliance control with speech recognition.

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.