Office Occupancy Tracker Pro Kit with Arduino Uno + LED
Office Occupancy Tracker Pro Kit: Build a GSM Phone Call Intruder Alarm with Arduino Uno
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
When you leave the office, this kit turns an Arduino Uno and SIM800L into a sentry that dials your phone the moment someone enters. Perfect for monitoring small offices, cabins, or server rooms after hours without relying on Wi-Fi or internet.
What You'll Build
A standalone security device that automatically makes a voice call to your mobile number when its PIR motion sensor detects movement. Connect it to a power bank or wall adapter, and it works independently, creating a reliable security alarm for any office or workspace.
What You'll Learn
- How to interface a GSM module with Arduino Uno
- Configuring the SIM800L to make voice calls
- Using PIR sensors to detect human presence
- Power management with a buck converter for stable GSM operation
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| SIM800L GSM | 1 |
| HC-SR501 PIR | 1 |
| LM2596 Buck Converter | 1 |
| 1000µF 25V Capacitor | 2 |
| 5mm Red LED | 2 |
| 10kΩ Resistor | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
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 is ideal for students exploring GSM-based automation — particularly CBSE Class 11-12 computer science projects, B.Tech ECE/EEE mini-projects, and ATL Tinkering Lab mentors demonstrating wireless security concepts. It's also a practical first step for anyone wanting to build a simple, no-internet office monitoring alarm.
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 to chat with the AI companion; if you prefer human help, WhatsApp us — we'll guide you directly.
Do I need a SIM card for this project?
Yes, any standard 2G SIM with calling facility works. The kit includes detailed instructions for inserting and registering the SIM with the network.
Will the kit work with 4G SIM cards?
The SIM800L is a 2G GSM module; it requires a SIM with 2G fallback. Most Indian networks support 2G. We'll guide you to check compatibility.
Can I use this kit to send SMS alerts instead of a call?
Absolutely. The SIM800L can send SMS, and our AI companion can help you modify the code to add that feature.
Office — SIM800L makes an automatic phone call when PIR detects intruder. Voice call security alarm.
What's in this kit
- Arduino Uno R3
- SIM800L GSM
- HC-SR501 PIR
- LM2596 Buck Converter
- 1000µF 25V Caps x2
- 5mm Red LED x2
- 10kΩ Resistors x5
- 400-pt Breadboard
- M-M Wires x20
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