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by Curiositry
170 days ago
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This is a super cool project! Probably the most interesting neurotech hardware I've run across since OpenBCI was released. It would be great to see a side-by-side comparison of Cerelog and OpenBCI data from the same session/patient. A few questions: - Could you clarify which parts of the project are licenced MIT, which are CC-BY-SA, and which are CC-BY-NC-SA? It seemed like the guide and the README had more restrictive language than the actual license file. - What made you decide to start fresh, rather than adding the features you needed to the OpenBCI? |
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Regarding licensing, sorry about the confusion between my repo init and the docs. I have updated the repo to clarify the distinction: Firmware & Software: MIT License. I want people to build whatever they want on top of the stack. Hardware Schematics: CC-BY-NC-SA (Non-Commercial). Why the split? Since I am a solo bootstrapper, I need to protect the hardware from low-effort commercial clones while I get the business off the ground. But I strongly believe in "Source Available" schematics so researchers and engineers can debug, learn, and modify their own units, hence the CC-BY-NC-SA choice for the board files.
Why start fresh? It was an architecture decision. The Cyton uses a PIC32 + RFduino stack. I wanted to handle everything natively on the ESP32 for high-bandwidth WiFi streaming, which required a ground-up redesign. I also wanted to add onboard LiPo charging and the ability to experiment with different filter topologies. Building it from scratch helped me uncover a lot of subtle design constraints that aren't obvious until you dig into the layout.