Wearable ECG Monitor Kit ESP32
Wearable Defibrillator Monitor Kit with ESP32 + LED - Real-Time ECG Monitoring & Arrhythmia Alert System
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
This advanced wearable kit lets you build a compact, continuous cardiac monitor that captures the heart's electrical activity, analyzes QRS complexes in real time, and raises an alarm when dangerous rhythm deviations appear. By integrating the AD8232 ECG front-end with an ESP32, you'll implement morphology-based arrhythmia recognition-exactly the approach used in clinical Holter monitors. Full waveform data is timestamped and logged to microSD, while a GSM module sends SMS alerts to a caregiver, making it a powerful health IoT prototype.
What You'll Build
You'll assemble a battery-powered device worn on a belt or armband that displays live ECG traces on an OLED screen. Every heartbeat's QRS complex is timestamped by the DS3231 RTC and stored on a microSD card for later analysis. The firmware continuously monitors QRS shape and interval; when an abnormal morphology that suggests arrhythmia is detected, the onboard active buzzer sounds immediately and the SIM800L module transmits a pre-formatted SMS to a designated phone number. The final enclosure makes the unit rugged enough for field testing.
What You'll Learn
- ECG signal acquisition and hardware filtering using the AD8232 module
- Real-time QRS detection algorithms on the ESP32 for arrhythmia classification
- Time-stamped data logging to microSD with DS3231 RTC synchronization
- GSM-based remote alerting via SIM800L for critical health events
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| AD8232 ECG Module | 1 |
| Electrode Patch | 6 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| Active Buzzer | 1 |
| SIM800L GSM | 1 |
| LM2596 Buck Converter | 1 |
| 3.7V LiPo 1000mAh | 1 |
| TP4056 Module | 1 |
| 100nF Caps | 10 |
| PCB Prototype Board | 3 |
| Enclosure Box | 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 designed for biomedical engineering students at IITs, NITs, VIT, and other universities who need a portable ECG acquisition system for capstone projects or research. It's equally suited for Smart India Hackathon health track teams prototyping remote patient monitoring solutions, and for healthcare IoT startups building wearable alert platforms. The project also serves as a robust platform for ECE/EEE graduates pursuing further study in medical signal processing.
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 in the box to launch the AI companion, which has been pre-loaded with the complete schematic, common troubleshooting steps, and test points for this kit. You can also message our support team on WhatsApp for a quick reply.
Can this kit actually defibrillate a patient?
No. The device is a monitor only. It reads ECG signals and alerts on arrhythmia patterns; it does not deliver any electrical shock. The name "Defibrillator Monitor" refers to its ability to detect sudden cardiac arrest rhythms, but it is strictly a non-therapeutic diagnostic tool.
Do I need a separate SIM card for the GSM module?
Yes, the SIM800L requires a standard 2G SIM card with an active SMS plan. The AI companion walks you through the setup, including APN configuration if needed.
How long can the device run on battery power?
With continuous ECG logging and the GSM module in standby (alert-only), the 1000mAh LiPo provides around 8-10 hours of operation. The included TP4056 module charges the battery via any micro-USB source in about 2 hours.
AD8232 ECG detects QRS complex. Alarm triggers on QRS morphology deviation indicating arrhythmia. Logs full waveform.
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