ESP32 Wrist Pulse Oximeter Kit - NIR PPG Glucose Trend Analysis
ESP32 Wrist Pulse Oximeter Kit - Capture NIR PPG Waveforms to Correlate with Glucose Trends
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 kit empowers you to construct a wrist-worn device that shines near-infrared light into your finger and captures high-fidelity photoplethysmography (PPG) signals. Using the ESP32, MAX30102, discrete 850nm LEDs, and BPW34 photodiodes, you extract waveform features that research suggests may correlate with blood glucose trends - a compelling step toward non-invasive health monitoring.
What You'll Build
You'll assemble a compact wrist-wearable unit with a custom prototyped PCB, a crisp 0.96-inch OLED display, and microSD logging. The device continuously records raw PPG data with timestamps from the DS3231 RTC, enabling offline analysis of waveform morphology. A rechargeable LiPo battery and enclosure make it practical for day-long wear, giving you a complete platform for exploring biomedical signal correlations.
What You'll Learn
- Design and test an NIR optical front-end using LM358 op-amp circuits for BPW34 photodiode signal conditioning
- Interface MAX30102 and discrete photodiodes with an ESP32 for high-resolution PPG sampling at controlled wavelengths
- Implement real-time waveform display on the OLED and log data to microSD with RTC timestamps for post-processing
- Perform time-domain feature extraction - systolic peak, dicrotic notch, amplitude variability - to study glucose-related trends
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | x1 |
| MAX30102 | x1 |
| 850nm LED | x2 |
| BPW34 Photodiode | x2 |
| LM358 Op-Amp | x2 |
| DS3231 RTC | x1 |
| MicroSD Module | x1 |
| 0.96in OLED | x1 |
| 10k? Resistors | x10 |
| 100nF Caps | x10 |
| 3.7V LiPo 1000mAh | x1 |
| TP4056 Module | x1 |
| PCB Prototype Board | x3 |
| Enclosure Box | 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
Designed for final-year B.Tech ECE/EEE students and biomedical engineering researchers at IIT, NIT, VIT, and BITS campuses who need a reproducible PPG acquisition platform. It's equally valuable for Smart India Hackathon teams prototyping non-invasive health monitors, and for ATL Tinkering Lab mentors guiding advanced wearable projects. The kit assumes prior soldering experience and a solid grasp of analog signal conditioning.
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 launch the AI companion that knows every connection and calibration step for this kit. If you prefer human help, WhatsApp our support team - we respond within hours.
Can this device provide medical-grade glucose readings?
No. This is an advanced research and experimentation kit. It captures high-resolution PPG waveforms whose features may correlate with glucose trends in controlled studies, but it is not a diagnostic tool and has not been clinically validated.
Do I need to solder all the components?
Yes, the kit includes a soldering iron and wire because you'll need to assemble the analog front-end and connectors on prototype boards. Thorough soldering skills are essential for clean signals from the photodetectors.
What if I only need specific parts from the list?
The kit is pre-packaged as a complete, tested bundle to avoid mismatched components. However, Compoden stocks all included parts individually, so you can reorder any item later through our store.
Health Monitoring - Near-IR LED + photodiode on finger measures photoplethysmography waveform features correlated with glucose trends.
What's in this kit
- ESP32 Dev Board
- MAX30102
- 850nm LED x2
- BPW34 Photodiode x2
- LM358 Op-Amp x2
- DS3231 RTC
- MicroSD Module
- 0.96in OLED
- 10k? Resistors x10
- 100nF Caps x10
- 3.7V LiPo 1000mAh
- TP4056 Module
- PCB Prototype Board x3
- Enclosure Box
- Soldering Iron
- Solder Wire
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