Show HN: Open-Source 8-Ch BCI Board (ESP32 and ADS1299 and OpenBCI GUI)

Show HN just plugged the internet into its own head: Cerelog’s open-source 8‑channel brain-signal board arrived, promising cleaner readings and plug‑and‑play vibes with a forked OpenBCI app, Wi‑Fi (beta), and the standard data pipe researchers use (LSL). The crowd went full popcorn. Budget warriors cheered the end of “eye watering” EEG prices, while skeptics waved the giant SAFETY banner: this is battery-only, do-not-plug-into-the-wall territory. One commenter even brought receipts with a CNX Software write‑up, and the dev flashed nerd-cred, teasing a deep dive on high‑rate wireless streaming.

Then the plot twist: a veteran neurofeedback tinkerer shared a teenage dream to “reproduce the experience of psilosybe cubensis” via brainwave training—cue clutching of pearls and upvotes in equal measure. Meanwhile, the value hunters demanded a showdown with OpenBCI’s Cyton, asking if this cheaper rig can really hang. Supporters praised the open schematics, Python scripts, and BrainFlow hooks; critics questioned safety and real‑world noise. Jokes flew about not frying your brain and “hackers finally reading the warning label.” The vibe? Hype meets caution. If this board delivers research‑ish data without the lab price tag—and without zapping anyone—it might be the people’s EEG. Until then, the thread wants benchmarks, demos, and yes… that promised geek‑out.