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The Tomu is super cool! It also has a bunch of spinoffs, the most interesting of which IMO is the Fomu (https://tomu.im/fomu.html). It's an ice40up5k FPGA in your USB port, not sure if you can get them anywhere due to the parts shortage but I know I've enjoyed hacking on mine.

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Quickly looked into Fomu and ran into this sweet FPGA Tomu Workshop https://workshop.fomu.im/en/latest/. Looks like you can get considerably better hardware (better connected at the very least) for half the price of a Fomu tho in the form of the UPduino (https://tinyvision.ai/products/upduino-v3-0).

I recommend the ICEBreaker if you're starting out as it's meant to be a learning platform.

https://www.crowdsupply.com/1bitsquared/icebreaker-fpga

There's a bunch of FPGA boards that are reasonably cheap and powerful.

https://github.com/kelu124/awesome-latticeFPGAs

The ICE Sugar boards look pretty sweet too.

https://muselab-tech.aliexpress.com/store/5940159

In stock at CrowdSupply: https://www.crowdsupply.com/sutajio-kosagi/fomu

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