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.
GitHub is for design work. Bug reports with reproducible technical details, KiCad design file issues, pull requests, and formal design reviews belong in the emberone00-pcb GitHub repo.
This forum is for the conversation around that work. 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
- Testing & benchmarking — share your results, hash rates, power draw measurements
- Forks & derivatives — show off your spin on the design, ask questions about adapting the form factor or swapping ASIC targets
- Roadmap & future ASIC variants — share what chips you want to see supported and give feedback on direction (formal design proposals belong as GitHub Issues)
- Integration questions — pairing Ember One with the Libre Board control board, Mujina firmware, and the broader open mining stack
Lead Engineer: @skot9000 | Project Manager: @econoalchemist | Funded by the 256 Foundation