by Sutajio Kosagi

An FPGA board that fits inside your USB port

View all updates Feb 04, 2019

Conclusion of the Fomu Campaign

Now that the campaign has wrapped up, we’ll get to work on the final version of the board. Chinese New Year is upon us, which means the factories we’re working with are all closed. That just means that it’s time to work on software, documentation, and user experience testing. We want to make sure Fomu works on any USB port you use it with, especially since the final Fomu design is more difficult to assemble and reprogram than Tomu or the hacker versions of Fomu.

Once again, thank you for helping to make this product a reality, and we can’t wait to bring the final version of Fomu to you.

$48,292 raised

of $10,000 goal

482% Funded! Order Below

Product Choices


Fomu for One

An FPGA for your USB port! Includes one pre-flashed Fomu and a plastic case. The price will increase once the campaign is over, so back us today!


For Me, For You, Fomu

Projects are better with a friend. Or maybe you want to have a spare. Either way, you will receive two pre-flashed Fomu boards with plastic cases. This low price will increase after the campaign finishes!


Fomu Ten-pack

Ten of our pre-flashed Fomu boards with plastic cases, each designed to fit into a single USB Type-A port. Bring FPGA development with you wherever you go, and share your RISC-V projects with up to nine other people.


Fomu EVT Board

An EVT board revision is used to validate the schematic is correct, and to help develop the software. This EVT board is what we'll use to develop the USB stack and to make sure we've got the power and other hardware parts wired up right. Designed to mount onto a Raspberry Pi to upload a bitstream and debug the CPU.This is a limited-time production board, and won't be produced after the few remaining sell.


Sutajio Kosagi

Sutajio Ko-usagi supports and produces open hardware products designed by bunnie and xobs.

Sean Cross

Tim Ansell

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