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This is really cool. Thanks for sharing this. Is this a workable solution for the Raspberry Pi or is it more of a proof of concept? I need to learn Ada, but I'm really not a fan of C/C++ or Python, so I haven't gotten to join in on the fun of the Pico, yet.

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It's more than a proof of concept; there are lots of examples, unit tests, and the linked documentation.

Pico Keys (https://www.tindie.com/products/fabien-c/pico-keys/) is a good example of a complex project built with rp2040_hal.

Note that this library is specific to the RP2040, not the larger Raspberry Pi boards. Some Ada drivers for those exist, but are not as well documented.

I also gave a short talk about some of the challenges I encountered earlier this year: https://youtu.be/Pwd9Q5ELAGM

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