OpenBCI

What it does

We provide anyone with a computer, the tools necessary to sample the electrical activity of their body. Our versatile and affordable bio-sensing microcontrollers can be used to sample electrical brain activity (EEG), muscle activity (EMG), heart rate (EKG), and much more. Our 3D-printable EEG headsets can be used to get research-grade EEG recordings.

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  Open WearablesApr 2026 · openwearables.io · ▲631

  Hi, I'm Bart, one of the maintainers of Open Wearables. For the past few months we've been building an open-source, self-hosted backend that normalises health and fitness data from multiple wearable providers (Garmin, Whoop, Apple Health, Samsung Health and others) into a single AI-ready REST API - and thought it was worth sharing here too :) We built this out of our own experience doing custom wearable integrations for clients, and from working with paid SaaS solutions that often lack the flexibility to customise data pipelines or debug what's actually happening under the hood.…

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  zitefy2024 · ▲126

  Super customizable & open link-in-bio tool with AI

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  Open-Source 8-Ch BCI Board (ESP32 and ADS1299 and OpenBCI GUI)Jan 2026 · github.com · ▲54

  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…

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