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How To Program A Really Cheap Microcontroller | Hackaday

https://hackaday.com/2019/02/17/how-to-program-a-really-cheap-microcontroller/

april 2022ch552 dev diy hack keyboardopen in karakeep

by Brian Benchoff ‧ Hackaday ‧ published 2019.02.17 ‧ saved copy from 2026.03.02

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There are rumors of a cheap chip that does USB natively, has an Open Source toolchain, and costs a quarter. These aren’t rumors: you can buy the CH552 microcontroller right now. Surprisingly,…
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