Arduino for STM32

Son, this is America, you need bigger breadboards!

You should be able to replicate the Serial-to-OneWire method, maybe?
Both sides can pull the line down or "leave it" at high.



https://github.com/dword1511/onewire-over-uart

600 uA in deep sleep

I'm more concerned with this, isn't it still a bit high?

Nice, I will probably build something similiar in the future, and I will definitely check this out again!
Especially since you claim I can build it with STM32duino, instead of the Cube IDE....

Please post results then, I assume you would require a high angular resolution for telescope orientation, in the order of arc seconds?

FastLED, like any other bit-banged protocol delivery, blocks interrutps while bit-banging. The most likely scenario is that you're missing serial interrupts because you're hogging the interrupts on FastLED, ON TOP of the USB interrupts.

I've had trouble with DWT timing in the past, because of naughty Arduino libraries blocking the interrupts and skeweing the timer counter. Nowadays I just use the RTC if I want accurate time in periods longer than ~100 ms.

From a fellow retro converter, good stuff!
Thanks for sharing.

hope this one is better https://www.hpcwire.com/2019/11/12/cray-fujitsu-both-bringing-fujitsu-a64fx-based-supercomputers-to-market-in-2020/ https://www.hpcwire.com/2020/02/03/fujitsu-arm64fx-supercomputer-to-be-deployed-at-nagoya-university/ but i think they won't be the only one, and i think more ...

Here you go. Have fun with perfect absolute rotational encoders.

@sigi You are close, but there's chip ICs that output rotational position directly now.