Senior Movement Alert Mini Kit with ESP32 + DHT22
Build a Home Assistant-Powered Senior Movement Alert System 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.
You're building a discreet, always-on monitoring system that detects movement and environmental changes, then sends real-time alerts to your Home Assistant dashboard. Whether it's a parent living independently or an elderly relative needing watchful eyes, this kit gives you remote peace of mind without intruding on their privacy — all through the Home Assistant mobile app.
What You'll Build
A complete elderly care monitoring node that reads temperature and humidity from two DHT22 sensors, detects motion via two PIR sensors across different rooms, and controls lights or alarms through a 4-channel relay. A 0.96-inch OLED shows local status, while the ESP32 exposes all data and relay controls to Home Assistant so you can check in from anywhere.
What You'll Learn
- Calibrating PIR sensors for reliable movement detection in home environments
- Integrating DHT22 temperature and humidity sensors with ESP32 firmware
- Configuring 4-channel relay outputs for automated responses like turning on lights or sounding an alert
- Connecting ESP32 to Home Assistant via the native API for seamless remote monitoring and control
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 Temperature & Humidity Sensor | 2 |
| HC-SR501 PIR Motion Sensor | 2 |
| 4-ch Relay Module | 1 |
| LM2596 Buck Converter | 1 |
| 0.96in OLED Display | 1 |
| 1N4007 Diode | 5 |
| 4.7kΩ Resistor | 5 |
| 100nF Capacitor | 10 |
| 400-pt Breadboard | 1 |
| Male-to-Male Jumper Wires | 25 |
| Micro USB Cable | 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
CBSE Class 11–12 students building vocational IoT projects, B.Tech ECE/EEE first-years prototyping healthcare systems, and families creating a home monitoring solution for elderly relatives. Also fits perfectly into ATL Tinkering Lab sessions and Smart India Hackathon prototypes where reliable elder care automation is needed.
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?
The AI companion provides step-by-step troubleshooting for this exact kit, and you can reach our team on WhatsApp for hands-on help within hours.
Can I add more sensors or relays later?
Yes, the ESP32 has spare GPIOs, and the 4-channel relay module can be expanded with additional modules — the firmware you’ll write is designed to be modular.
Do I need a Home Assistant server already running?
Yes, you need a working Home Assistant instance (on a Raspberry Pi, old laptop, or virtual machine) to receive the sensor data and control the relays from the mobile app.
How do I keep the system running 24/7?
The LM2596 buck converter steps down a 12V adapter (not included) to 5V for the ESP32, or you can power directly via the Micro USB cable with any standard 5V 2A phone charger.
Elderly Care — ESP32 native HA API exposes 6 sensors and 4 relays. Control from Home Assistant mobile app.
What's in this kit
- ESP32 Dev Board
- DHT22 x2
- HC-SR501 PIR x2
- 4-ch Relay Module
- LM2596 Buck Converter
- 0.96in OLED
- 1N4007 Diode x5
- 4.7kΩ Resistors x5
- 100nF Caps x10
- 400-pt Breadboard
- M-M Wires x25
- Micro USB Cable
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