Real-Time Alpha Wave Detector Kit: ESP32-Based EEG Biofeedback System

Every part needed for a portable EEG alpha wave detector, pre-tested for seamless integration, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Tap into the electrical rhythms of your brain. This advanced kit equips you to build a wearable EEG headband that detects alpha waves (8–12 Hz) in real time. Using the high-precision ADS1299 analog front-end and the ESP32’s dual-core processing, you’ll capture minuscule scalp potentials, filter out noise, and generate a live relaxation index displayed on an OLED and an LED. Whether for neurofeedback research, a B.Tech capstone project, or personal biohacking, you’ll create a fully standalone device that logs timestamped data for offline analysis.

What You'll Build

A battery-powered EEG headband that continuously samples the visual cortex at 250 Hz. In a relaxed state, alpha power increases and the onboard LED brightens proportionally. The OLED displays the alpha envelope trend, and the microSD card stores raw signals and processed metrics alongside an RTC timestamp. The AI companion provides a 3D-printable case file to finish your wearable, lab-grade alpha meter.

What You'll Learn

• Sampling high-resolution EEG with the ADS1299 at 250 Hz via SPI
• Implementing digital bandpass filters on the ESP32 for alpha band extraction
• Real-time signal processing and data logging with a DS3231 real-time clock
• Designing wearable, low-noise analog front-ends for biopotential measurements

Kit Contents

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.