ESP32 Athlete Performance Tracker Kit - Build a Wearable PPG Glucose Trend 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.

For an athlete pushing endurance limits, subtle shifts in blood glucose can make or break a performance. This advanced ESP32 kit lets you build a custom wearable that uses dual near-infrared LEDs and photodiodes to extract photoplethysmography (PPG) waveform features those shifts leave behind-without a traditional continuous glucose monitor. You'll design a multi-wavelength optical front-end, sample weak biosignals, and train your own algorithms to correlate PPG dynamics with metabolic trends seen during training, recovery, and competition.

What You'll Build

A fully functional finger-worn optical sensor module streaming raw PPG data to the ESP32. Waveforms are timestamped via the DS3231 real-time clock, logged to a MicroSD card, and summarised on a 0.96-inch OLED display showing real-time trend indicators. The prototype becomes your personal biosignal capture rig, ready to feed long-term glucose-correlation analysis or later be packaged in the included enclosure as a field-ready wearable.

What You'll Learn

• Designing dual-wavelength PPG front-ends with transimpedance amplification using the LM358 op-amp to extract minute light-induced currents from the BPW34 photodiodes.
• Sampling and digital filtering of physiological signals on the ESP32, rejecting motion artefacts and ambient light interference to isolate clean waveform morphology.
• Extracting waveform features such as AC/DC ratio, rise time, and dicrotic notch characteristics that research has linked to glucose-related metabolic changes.
• Logging time-stamped sensor data to a MicroSD module for offline analysis, allowing you to build statistical models or train machine learning pipelines for trend prediction.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Designed for B.Tech and M.Tech students in ECE and EEE final-year projects, researchers at IITs and NITs exploring non-invasive biosensing, and Smart India Hackathon teams building athlete performance monitors. It also suits sports scientists and hardware engineers who want a reproducible platform for capturing PPG-glucose correlation data before moving to clinical validation.

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.

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.