Open-Source 8-Ch BCI Board (ESP32 and ADS1299 and OpenBCI GUI)
Hi HN, I recently shared this on r/BCI and wanted to see what the engineering community here thinks. A while back, I got frustrated with the state of accessible BCI hardware. Research gear was wildly unaffordable. So, I spent a ton of time designing a custom board, software and firmware to bridge that gap. I call it the Cerelog ESP-EEG. It is open-source (Firmware + Schematics), and I designed it specifically to fix the signal integrity issues found in most DIY hardware. I believe in sharing the work. You can find the Schematics, Firmware, and Software setup on the GitHub repo: GITHUB…
Open-Source 8-Ch BCI Board (ESP32 and ADS1299 and OpenBCI GUI) launched on January 5, 2026 with 54 votes, #532 of 14,584 launches that month and more than 95% of that year's launches.
In plain words
The Cerelog ESP-EEG is an open-source brain-computer interface board combining an ESP32 microcontroller with an ADS1299 signal processor for eight-channel EEG recording. Designed for researchers and hobbyists, it addresses signal integrity problems common in DIY BCI hardware and works with the OpenBCI GUI software. Complete schematics and firmware are available open-source on GitHub, with pre-assembled units offered as an alternative to component sourcing and soldering.
written from the facts on this page · September 2026
From the sources
Cerelog ESP-EEG High-precision 8-channel biosensing board designed for EEG, EMG, ECG, and Brain Computer Interface (BCI) research applications. - Cerelog-ESP-EEG/ESP-EEG
In the maker’s words, at launch
Hi HN, I recently shared this on r/BCI and wanted to see what the engineering community here thinks. A while back, I got frustrated with the state of accessible BCI hardware. Research gear was wildly unaffordable. So, I spent a ton of time designing a custom board, software and firmware to bridge that gap. I…
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