Libre Board

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What You Need ​

A short list for someone about to build or bench a Libre Board. The full bring-up guide comes after Rev 3 validation.

If you are building a board ​

  • The Revision 3 design files, on the rev3 branch. Design files says which directory is which. That branch becomes main once it is merged.
  • The bill of materials in bom/ on that branch, and the JLCPCB order set in fab/rev3-jlc. Order from JLCPCB is the order page.
  • A Raspberry Pi Compute Module 5. The board uses the two standard 100-pin connectors. A CM5 Lite (no eMMC) also needs a microSD card. The silkscreen says the SD slot is only for modules without eMMC.
  • A 12–24 V DC supply, into the two screw terminals.

If you are running one ​

  • The board, with the CM5 fitted.
  • 12–24 V DC.
  • Mujina for mining firmware.
  • An Ember One hashboard if that is the machine you are building. It connects to the USB 2.0 Type-C ports. See Hashboards.

What this page does not cover ​

There is no flash procedure and no bring-up procedure here yet. Those guides come after Rev 3 validation. Where Libre Board is today is the validation record. Specifications is the connector list.