8-Channel EEG Front-End on ESP32
Design the analog board that reads real brainwaves: the BCI.
- Track
- SENSE
- Level
- L3
- Prerequisites
- 4
- Status
- Coming soon
▸ Register interest
This board is on the bench. Leave your email and you'll be first in when it ships, and your interest helps decide what we build next.
What you'll build
The flagship build: an 8-channel EEG analog front-end on the ADS1299, a 24-bit biopotential converter, with galvanic isolation between the electrodes and everything downstream. It reads real brainwaves at microvolt scale. You design the whole board yourself, from the analog front-end and its bias and reference network through the isolated power to the ESP32 that streams the samples. Your board speaks the OpenBCI Cyton serial protocol, so it drops straight into the OpenBCI GUI and BrainFlow without you writing any capture software. The brain-computer interface at the center of the whole curriculum.
It sits on the SENSE track: reading real-world signals and turning voltages, currents, and biopotentials into clean digital data.
Learn the concepts now, free
The course isn't open yet, but the ideas behind it are. These free explainers cover the concepts this build puts into practice. No account needed.
- Biopotential Analog Front-EndsThe amplifier stage that makes microvolt EEG measurable: what an instrumentation amplifier does, why biopotentials demand one, and what a modern integrated AFE folds in.
- Control a Drone With Your BrainYes, you can fly a drone with an EEG brain-computer interface. Here's how it actually works, what's realistic, and how you'd build a simple one.
Part of the path from your first board to a brain-computer interface. See the full skill tree →