Home Security Motion Sensor Advanced Kit with Arduino Uno + LED
DIY Home Security Motion Sensor Kit with Arduino Uno & LED – Occupancy Status Indicator
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 a corner of your room into a live security status panel. In under three hours, you’ll wire an Arduino Uno to a PIR motion sensor and a magnetic reed switch, then program it to light up green when the room is empty and red when someone is inside. It’s your first real-world smart-home logic, learned hands-on.
What You'll Build
You will assemble and program a dual-sensor occupancy monitor. The PIR sensor watches for body heat and movement inside the room; the reed switch detects whether the door is open or closed. When both sensors agree the room is empty, a bright green LED glows. The moment motion is detected or the door opens, the system flips to a red LED—just like a “do not disturb” sign that actually works.
What You'll Learn
- How a PIR sensor reacts to infrared radiation from moving warm bodies
- How a reed switch and magnet form a reliable door-open/close detector
- Basic Arduino logic that merges two sensor inputs into one clean output
- Using LEDs to show real-time occupancy instead of just blinking patterns
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| HC-SR501 PIR Sensor | 1 |
| Reed Switch | 1 |
| 5mm Red LED | 2 |
| 5mm Green LED | 2 |
| 220Ω Resistors | 5 |
| 10kΩ Resistors | 5 |
| 400-pt Breadboard | 1 |
| Male-to-Male Jumper Wires | 20 |
| 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
Young makers aged 8–15 who want a fun electronics project that feels like a real smart-home gadget. CBSE Class 11–12 students preparing board projects or science exhibitions, ATL Tinkering Lab club members, and B.Tech ECE/EEE first-year students will find immediate value in combining sensor inputs and coding a logical response. It’s also a great parent-child weekend activity for families in India curious about IoT and 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 on the box to open your AI build companion, which knows this exact kit. It will walk you through wiring and code step by step. For extra help, you can send us a photo on WhatsApp and a human will respond within a few hours.
Can I install this on a real door at home?
Absolutely. The reed switch and its magnet can be mounted on a wooden door frame with double-sided tape, and the PIR sensor can be placed inside the room. You may need to extend the jumper wires, but the circuit works just the same.
My PIR sensor keeps triggering the red LED when no one is there. What can I do?
The HC-SR501 has two small orange adjustment pots—tune the sensitivity slightly lower and increase the delay time. Also, make sure it isn’t aimed at a heat source like a window or a fan. The AI companion can help you reposition it.
Is this kit safe for a 5-year-old builder?
The kit uses low-voltage components and a 9V battery, which is safe under normal conditions. However, small parts and jumper wires mean we recommend adult supervision for children under 10, especially during the wiring steps, to avoid accidental shorts.
Home Security — PIR inside and reed switch on door combine to show accurate occupied or free status.
What's in this kit
- Arduino Uno R3
- HC-SR501 PIR
- Reed Switch
- 5mm Red LED x2
- 5mm Green LED x2
- 220Ω Resistors x5
- 10kΩ Resistors x5
- 400-pt Breadboard
- M-M Wires x20
- 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