Senior Movement Alert Smart Kit with ESP32 + DHT22
Senior Movement Alert Smart Kit – ESP32 Matter, DHT22, PIR & Relay for Elderly Care
Every part needed, pre‑tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3‑5 days.
You’ll assemble a complete elder‑care monitoring system that goes far beyond a simple motion alert. Using ESP32’s Matter SDK, the kit exposes the DHT22 temperature sensor, HC‑SR501 PIR motion detector, and a 5V relay directly to Apple Home, Google Home, and Alexa — without cloud bridges or third‑party apps. Everything talks natively in the Matter smart‑home language, giving you reliable, real‑time visibility into an elderly person’s room temperature, activity, and even triggering a fan or alarm via the relay.
What You'll Build
By the end of this project you’ll hold a custom‑enclosed device that reports room temperature and humidity to your phone’s Home app while instantly notifying you the moment movement is detected. The relay can turn on a light or nurse‑call indicator whenever the PIR triggers, and the OLED screen provides at‑a‑glance readings right on the unit. Built on the Matter standard, your monitor works equally well with AirTags‑style presence in Apple’s ecosystem, Google Nest routines, and Alexa automations — giving peace of mind across any household setup.
What You'll Learn
- Configure the ESP32 Matter endpoint and create temperature, humidity, occupancy, and switch clusters natively
- Wire and calibrate the DHT22 digital sensor while handling power‑noise with decoupling capacitors
- Interface the HC‑SR501 PIR module, set sensitivity and time‑delay, and map its output to Matter occupancy sensor data
- Solder a complete prototype board, integrate a 5V relay module with flyback diode protection, and test the entire chain in a real Matter fabric
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 | 1 |
| HC‑SR501 PIR | 1 |
| 5V Relay Module | 1 |
| LM2596 Buck Converter | 1 |
| 0.96in OLED | 1 |
| 1N4007 Diode | 5 |
| 4.7kΩ Resistors | 5 |
| 100nF Caps | 10 |
| PCB Prototype Board | 2 |
| Enclosure Box | 1 |
| 5V 2A 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
Designed for B.Tech ECE/EEE students, Smart India Hackathon teams, final‑year engineering project groups, and advanced hobbyists who want to master Matter IoT. If you’re at IIT, NIT, VIT, BITS, or a CBSE Class‑12 ATL lab tackling elder‑care automation, this kit gives you a real‑world deployment case — not just a blinking LED demo. The soldering and full‑stack integration mirror what you’d encounter in a production smart‑home device.
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 launch the AI companion trained on the Senior Movement Alert Kit. It will help you debug sensor wiring, Matter commissioning steps, and relay logic. You can also reach us on WhatsApp for additional guidance.
How do I commission the device into Apple Home, Google Home, or Alexa?
The AI companion walks you through the exact Matter pairing code and QR generation process. After flashing the pre‑compiled firmware (source provided), you simply scan the code with your preferred platform’s app — no separate bridge or cloud account needed.
Can I customise the alert behaviour, e.g., relay ON only at night?
Absolutely. Because the firmware leverages the ESP32 Matter SDK, you can modify the occupancy and switch logic directly in the Arduino‑framework code. The companion offers examples for time‑based schedules and automation rules you can add.
What soldering skill level is expected?
The kit assumes basic through‑hole soldering experience — you’ll solder DHT22, PIR header pins, relay terminals, and the prototype board. The AI companion includes high‑resolution images of every joint. With 6‑8 hours of focused work, a student with some prior soldering can complete the build.
Elderly Care — ESP32 Matter SDK exposes DHT22 temperature, relay and motion to Apple Home, Google Home and Alexa natively.
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