Matter Motion Alert System for Seniors with ESP32 & DHT22 Kit
Build a Matter Motion Alert System for Senior Care with ESP32 & DHT22
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Give an elderly family member a safety net that blends seamlessly into any modern smart home. This kit guides you through building a native Matter accessory using an ESP32, a pair of DHT22 sensors, and PIR motion detectors. When motion stops or temperature drifts outside safe limits, the device instantly triggers relay-connected appliances and sends alerts through your existing Matter hub - no cloud dependency, no monthly fees. Perfect for Indian households where caring for elders is a priority, yet technology should adapt to the home, not the other way around.
What You'll Build
You'll assemble and program a compact sensor node that reports real-time temperature and motion status as Matter clusters. Once onboarded to Apple Home, Google Home, or any Matter fabric, it appears as a certified sensor. The four relays let you wire a bedside lamp, a buzzer, a fan, or even an emergency call button. When the PIR sees a fall in movement or the DHT22 detects abnormal room temperature, the relay toggles automatically. The 0.96-inch OLED displays status locally, so a caregiver can quickly check the environment without opening an app.
What You'll Learn
- Configure the Espressif Matter SDK to expose a DHT22 as a native Matter temperature sensor, complete with calibration and reporting intervals.
- Integrate dual HC-SR501 PIR sensors as Matter motion detectors, handling occupancy state and sensitivity tuning for elderly-care scenarios.
- Drive a 4-channel relay module as Matter switchable accessories, enabling lights, alarms, or appliances to respond automatically to movement or temperature thresholds.
- Flash the firmware via USB-UART, provision the device, and onboard it into Apple Home, Google Home, Home Assistant, or any Matter controller - learning the full zero-to-Matter workflow.
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 | 2 |
| HC-SR501 PIR | 2 |
| 4-ch Relay Module | 1 |
| LM2596 Buck Converter | 1 |
| 0.96in OLED | 1 |
| 1N4007 Diode | 5 |
| 4.7k? Resistors | 5 |
| 100nF Caps | 10 |
| PCB Prototype Board | 2 |
| Enclosure Box | 1 |
| 5V 3A PSU | 1 |
| Soldering Iron | 1 |
| Solder Wire | 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 is ideal for final-year B.Tech ECE and EEE students building home automation capstone projects, Smart India Hackathon teams, and IoT enthusiasts at IITs, NITs, VIT, and BITS Pilani. Mentor-led ATL Tinkering Labs and polytechnic instructors also use it to demonstrate the Matter protocol and connected elder-care devices. If you're comfortable with C/C++ and soldering, and want a project that solves a real Indian household challenge, you're ready.
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 open the AI build companion that knows every part and step in this kit. For human help, our WhatsApp support team responds within hours with specific troubleshooting advice.
Do I need a specific Matter hub to test the system?
No, the kit works with any Matter-compatible hub or border router, including Apple HomePod, Google Nest Hub, Amazon Echo (with Matter), and open-source platforms like Home Assistant. You can even test using a secondary ESP32 running the Matter controller example.
Is soldering required, and what if I'm new to it?
Yes, this advanced kit requires soldering through-hole and some SMD parts onto the protoboard. A soldering iron and solder wire are included; the AI guide includes close-up technique videos to help you through the first joints.
Can I integrate this with existing phone notifications or Alexa routines?
Absolutely. Once onboarded as a Matter device, the kit's sensors and relays appear as standard triggers and switches. You can create automations in Apple Home, Google Home, or Alexa to send phone alerts, flash lights, or call family members when motion stops or temperature crosses a defined threshold.
Elderly Care - ESP32 Matter SDK exposes 4 relays, temperature and motion as native Matter accessories.
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.
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