On: Arduino in the size of a AA battery

[mschuster91]

> Running linux (or any OS) can be a huge liability when you need to talk to some other bit of hardware that has strict timing requirements.

Not just the timing is critical, also the failure causes (and modes) are far bigger in number when running an OS.

E.g. if you properly code in C or ASM for a microcontroller and avoid things like recursion, it's very hard to crash due to OOM errors.