BLE Health Sensor Peripheral Kit with ESP32 + LED
ESP32 BLE Health Sensor Peripheral Kit: Build a Wireless Heart Rate & SpO2 Monitor
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 program the ESP32 to read pulse oximetry data from the MAX30102, display it on the OLED screen, and broadcast it as standard Bluetooth Low Energy Health Service characteristics — making your own wireless vital signs monitor that any BLE‑compatible app can pair with. This project bridges embedded systems with modern mobile health tech, giving you a working prototype for health‑tracking wearables or telemedicine gadgets.
What You'll Build
By the end of this 4‑hour build, you’ll have a functioning BLE peripheral that continuously measures heart rate and blood oxygen saturation (SpO2) and streams the data to your smartphone. The 0.96‑inch OLED shows live readings, while any standard BLE heart rate app — like nRF Connect or LightBlue — can discover the Health Thermometer and Heart Rate services to log and graph your biometrics. It’s a tangible, wearable‑ready device that demonstrates a real‑world medical sensor communication protocol.
What You'll Learn
- Programming the ESP32 as a BLE peripheral with standard Health Service UUIDs
- Interfacing the MAX30102 pulse oximeter over I2C and reading raw photoplethysmogram data
- Processing heart rate and SpO2 algorithms (provided code explained step‑by‑step)
- Displaying real‑time vitals on a 0.96‑inch OLED screen
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| MAX30102 | 1 |
| 0.96in OLED | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Capacitors | 5 |
| 400‑pt Breadboard | 1 |
| M‑F Jumper Wires | 15 |
| 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 physics or computer science projects will find this perfect for health‑monitoring demonstrations. B.Tech ECE/EEE undergraduates learning wireless protocols can use it as a live BLE example. Smart India Hackathon teams and ATL Tinkering Lab innovators get a reliable biometric sensor module, while IIT/NIT/VIT makers gain a complete wearable prototype foundation.
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 on the box to open the AI companion—it’s trained on this exact kit. If you need extra help, you can message us on WhatsApp and our project engineers will guide you.
Can I connect this sensor to any smartphone?
Yes. The ESP32 advertises standard BLE Health Thermometer and Heart Rate services, so any BLE scanner app (like nRF Connect or LightBlue) on iOS or Android can read the heart rate and SpO2 values.
Do I need prior experience with Bluetooth Low Energy?
Not necessarily; the provided code is fully explained, and the AI companion walks you through each concept. You’ll learn BLE GATT, services, and characteristics as you build.
Is any soldering required, and what if the MAX30102 sensor seems loose?
No soldering is needed—the MAX30102 breakout comes with pre‑soldered male headers for breadboard insertion. If you face connection issues, use a 4.7kΩ resistor for pulling up I2C lines as shown in the wiring diagram.
ESP32 BLE peripheral exposes MAX30102 heart rate and SpO2 as standard BLE Health service characteristics.
What's in this kit
- ESP32 Dev Board
- MAX30102
- 0.96in OLED
- 4.7kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-F Wires x15
- Micro USB Cable
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