Build a Proximity-Activated PC Lock with the Arduino Bluetooth Lock 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 your computer locking itself the moment you step away and unlocking as you approach, all without touching a key. This kit lets you build a Bluetooth proximity lock using an Arduino Uno and HC-05 module, turning your phone’s signal strength (RSSI) into a keyless entry system. Whether you want to secure a dorm room workstation, a home office, or a lab desktop, this project introduces real-world wireless security in a breadboard-friendly format.

What You'll Build

You’ll assemble a functional proximity lock that controls a relay — connected to a PC lock mechanism or any electronic switch — triggered by your phone’s Bluetooth signal. As you walk away, the red LED glows and the system locks; when you return within range, the green LED lights and it unlocks. The entire circuit sits on a breadboard, giving you a visually clear prototype that demonstrates how RSSI thresholds translate to physical actions.

What You'll Learn

• Measure Bluetooth signal strength (RSSI) and set distance-based triggers
• Interface HC-05 module with Arduino for wireless serial communication
• Control a 5V relay to switch a high‑power load safely
• Design circuits with diodes, resistors, and LEDs on a breadboard

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is ideal for CBSE Class 11–12 students building a computer science or IoT coursework project, B.Tech ECE/EEE undergraduates preparing for Smart India Hackathon, and ATL Tinkering Lab members exploring wireless security. It also suits hobbyists at NIT, VIT, BITS, or IIT who want a weekend project that solves a real problem — securing a shared desktop without remembering passwords.

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.