Pet Activity Monitor Kit v3 - Arduino Mega Auto-Arm Security System with PIR Zones & Keypad Disarm
Pet Activity Monitor Kit v3 - Arduino Mega Auto-Arm Security System with PIR Zones & Keypad Disarm
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 a system that watches over your pet while you're away - automatically arming itself each night, detecting motion in key zones, and alerting you the moment something is amiss. The Pet Activity Monitor Kit v3 lets you build a real, deployable security system using an Arduino Mega, a DS3231 real-time clock for scheduled arming, three HC-SR501 PIR sensors to create a motion-detection mesh, and a 4�4 matrix keypad for code-based disarm. This isn't a toy; it's a functional project that blends pet activity monitoring with smart home security, tailored for engineering students and makers who want a challenging, practical build.
What You'll Build
A fully programmable monitor that arms itself at times you set (e.g., 11 PM to 7 AM). When armed, the three PIR sensors cover separate zones around your pet's space - any human or large pet movement triggers a loud active buzzer and energises a 5 V relay to drive an external siren or camera. The OLED screen shows real-time status, zone-specific triggers, and countdown timers. Disarm the system by entering your personal 4-digit code on the keypad; enter a wrong code and the alarm persists. It's a complete, standalone security solution you can customise after the build.
What You'll Learn
- Calibrating multiple HC-SR501 PIR sensors for pet-specific sensitivity - suppress false triggers from cats or small dogs while reliably detecting people
- Integrating a DS3231 RTC to create time-based auto-arm/disarm schedules with persistence over power cycles
- Implementing a password-protected keypad disarm sequence with debounce, timeout handling, and state management in Arduino C++
- Interfacing a monochrome OLED display via I�C to render zone activity, system armed/disarmed state, and live sensor trip indicators
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | x1 |
| HC-SR501 PIR | x3 |
| DS3231 RTC | x1 |
| 4x4 Keypad | x1 |
| Active Buzzer | x1 |
| 5V Relay Module | x1 |
| 0.96in OLED | x1 |
| 1N4007 Diode | x5 |
| 10k? Resistors | x10 |
| 100nF Capacitors | x10 |
| PCB Prototype Board | x2 |
| 12V Adapter | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
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
Designed for college-level learners and advanced hobbyists. B.Tech ECE/EEE students will find it a ready-to-go major project on embedded security. Smart India Hackathon teams can prototype intrusion detection quickly. ATL Tinkering Lab mentors can run workshops that teach sensor integration, real-time scheduling, and user authentication. Pet owners with an engineering bent can build a custom surveillance system they fully understand and can modify later - no locked-down firmware.
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 inside the box to start a session with the AI companion trained on this kit's wiring, code, and calibration. If you still need help, our WhatsApp support team responds within hours.
Can I adjust the schedule or change the disarm code after assembly?
Yes - the AI companion walks you through editing the RTC schedule and reprogramming the keypad passcode in the Arduino sketch. You retain full control over the device's behaviour.
Is soldering experience mandatory for this kit?
Advanced soldering is required to mount components on the PCB prototype boards. We include a soldering iron and solder wire, and the build guide provides step-by-step visual instructions. If you're new to soldering, expect to spend extra time on this phase.
How can I test the system before permanent installation?
The AI companion includes a zone-walk test routine: you arm the system, walk through each PIR's detection cone, and verify that the buzzer sounds and the OLED flags the correct zone. This ensures correct placement and sensitivity before final mounting.
Pet Tracking - Security system auto-arms via RTC schedule. PIR zones trigger alarm. Code disarms via keypad.
What's in this kit
Choose your assembly option:
- Soldering Kit - 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo - 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
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