ESP32 Elderly Care Kit: Movement Alert & Pre-Cool System
ESP32 Elderly Care Automation Kit - Learn Occupancy Patterns and Pre-Cool Rooms
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Build a proactive home environment that understands the rhythms of an aging family member. This kit equips you to create a multi-zone temperature monitor that pre-cools rooms minutes before usual entry, logs every motion event, and alerts caregivers if patterns break - exactly the kind of assistive technology that makes independent living safer and more energy efficient.
What You'll Build
You'll deploy three DS18B20 probes to measure temperatures in key areas, pair two HC-SR501 PIR sensors to detect movement, and use a DHT22 for humidity context. The ESP32 brain, guided by a DS3231 real-time clock, learns typical occupancy windows from week-long logs stored on a MicroSD card. A 4-channel relay then triggers a fan or AC ahead of schedule only when future occupancy is predicted, cutting power waste while ensuring comfort. The OLED display shows live readings and system status.
What You'll Learn
- Calibrate and read three DS18B20 sensors on a single OneWire bus for redundancy-freezone monitoring
- Implement timestamped event logging on MicroSD with RTC synchronization to build an occupancy history
- Design an adaptive relay controller that decides pre-cooling based on learned entry times and current temperature
- Create a fail-safe motion alert using PIR hysteresis and interval checks for caregiver notifications
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | x1 |
| DS18B20 Probe | x3 |
| HC-SR501 PIR | x2 |
| DHT22 | x1 |
| DS3231 RTC | x1 |
| MicroSD Module | x1 |
| 4-ch Relay Module | x1 |
| LM2596 Buck Converter | x1 |
| 0.96in OLED | x1 |
| 100nF Caps | x10 |
| 4.7k? Resistors | x5 |
| PCB Prototype Board | x2 |
| Enclosure Box | x1 |
| 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
B.Tech ECE/EEE students targeting IoT healthcare projects, final-year teams at IIT/NIT/VIT/BITS working on assistive living prototypes, Smart India Hackathon participants building elderly care solutions, and embedded engineers creating real-world home automation systems. If you're designing for a family member and need a reliable, learnable platform, this kit gives you the hardware and mentorship.
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.
How does the kit learn occupancy patterns?
The ESP32 timestamps every HC-SR501 trigger with the DS3231 RTC and writes to MicroSD. You'll code an algorithm that averages active windows over a week; the relay then pre-cools only when entry probability is high. The AI companion provides sample logic.
Can it alert if no movement is detected for hours?
Yes. You can define a maximum idle interval in firmware. When exceeded, the OLED flashes a warning and the ESP32 can send an HTTP request or activate a buzzer (not included). Our code snippets make implementation straightforward.
Will the relay work directly with an air conditioner?
The 4-ch relay switches low-voltage control circuits. For inductive AC compressor loads, use an external contactor rated for your appliance. The kit's relay normally interfaces with fan motors or cooler pumps directly.
What if I've never soldered before?
The kit includes a soldering iron and wire. The PCB prototype boards are forgiving, and the AI companion shows you every joint with close-up photos. WhatsApp support is available if you're stuck mid-build.
Elderly Care - Learns daily schedule and pre-cools before arrival using occupancy history. DS18B20 + HC-SR501 + relay control.
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.
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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