Bluetooth Home Automation Plus Kit with Arduino Uno + HC-05
Speak to Control Your Home: Arduino Bluetooth Home Automation Kit with 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.
Tell your phone to turn on the lights, and watch them respond — no claps, no switches. With this kit, you’ll build a full 4-channel voice-controlled automation system using an Android phone’s speech recognition, an HC-05 Bluetooth module, and an Arduino Uno. Perfect for CBSE Class 12 practicals or B.Tech minor projects, the system maps spoken appliance names like “fan” or “AC” directly to relay channels, giving you real-world voice control over any plugged-in device.
What You'll Build
A functioning voice-controlled home automation hub that interprets spoken commands via any Android device and activates real appliances on four independent channels. You’ll assign spoken appliance names to each relay, see command confirmations on a 16x2 LCD, and switch actual 230V loads after a safe test phase with DC loads.
What You'll Learn
- Integrating Bluetooth serial communication between Arduino and an Android speech-to-text app.
- Mapping natural language keywords to relay driver logic for safe appliance control.
- Interfacing a 16x2 I2C LCD for real-time feedback on voice commands and relay status.
- Implementing hardware protection with flyback diodes and decoupling capacitors in a switching circuit.
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| HC-05 Bluetooth | 1 |
| 4-ch Relay Module | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| 1N4007 Diode | 5 |
| 100Ω Resistors | 5 |
| 10kΩ Resistors | 5 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 25 |
| 9V Battery Snap | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This kit suits CBSE Class 11-12 students building their physics or computer science practicals, first-year B.Tech ECE/EEE students needing a working IoT demo, and ATL Tinkering Lab mentors introducing voice interfaces. It’s also a solid foundation for Smart India Hackathon prototypes that demand quick, demonstrable home automation.
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.
What if I get stuck during the build?
Scan the QR code for the AI build companion trained on this exact project; it can guide you step-by-step through code errors, wiring, and debugging. You can also message our WhatsApp support for human help the same day.
Can I control appliances that are not in the pre-defined keyword list?
Absolutely. The companion app and Arduino sketch are open; you can add any spoken appliance name by editing the keyword-to-relay mapping in the code.
Is it safe to connect AC appliances to the relay module?
The 4-channel relay module is rated for up to 250V AC, but mains wiring should only be done under adult supervision and after verifying the circuit with DC loads first. Always disconnect power before handling.
Do I need to write all the code from scratch?
No. The kit includes a tested Arduino sketch and a ready-to-pair Android app. The AI companion will walk you through customising keywords and LCD messages to match your home.
Home Automation — HC-05 receives Android speech-to-text. Keywords mapped to 4-channel relay appliance names.
What's in this kit
- Arduino Uno R3
- HC-05 Bluetooth
- 4-ch Relay Module
- 16x2 LCD
- I2C Backpack
- 1N4007 Diode x5
- 100Ω Resistors x5
- 10kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x25
- 9V Battery Snap
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items