Open-source Bitcoin mining hashboard reference design. Supports various ASIC chips. ~100W, 12–24VDC input, USB-C, 125mm × 125mm standard form factor. Fork it, build it, hack it. Part of the 256 Foundation open mining stack.
The Ember One is an open-source Bitcoin mining hashboard developed and maintained under the 256 Foundation grant program. It is a standardized ~100W hashboard with a 12–24VDC input range, USB-C data communication, on-board temperature sensors, and a fixed 125mm × 125mm form factor — designed to be modular, repairable, and hackable by anyone. It serves as a reference design for how to design, modify and interact with various Bitcoin mining ASIC chips.
The current release, Ember One 00, is built around the Bitmain BM1362 ASIC (from the S19j Pro) and targets approximately 3.5 TH/s. Future versions will target additional ASIC chips from Intel, Auradine, and Proto Mining — all sharing the same form factor.
This category is the place for community discussion around the Ember One hardware project. Use it for:
- Build questions & assembly help — hand-building tips, sourcing components, ASIC chip variant compatibility
- Hardware troubleshooting — debugging boards, thermal issues, power supply configurations
- Design discussion — feedback on schematic and layout decisions, proposed improvements, forks and derivatives
- Testing & benchmarking — share your results, hash rates, power draw measurements
- New version speculation & roadmap discussion — ideas and community input on upcoming ASIC variants
- Integration questions — pairing Ember One with the Libre Board control board, Mujina firmware, and the broader open mining stack
What belongs on GitHub instead: Bug reports with reproducible technical details, KiCad design file issues, pull requests, and formal design reviews should go directly to the emberone00-pcb GitHub repo. This forum is for the conversation around those contributions — the context, the reasoning, the community coordination — not a replacement for the repo itself.
Lead Engineer: @skot9000 | Project Manager: @econoalchemist | Funded by the 256 Foundation