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20 minutes agoNothing is
Nothing is
I guess maybe we have different requirements, but I built a similar controller using a 68HC05 when I was in college (yes I am that old) and it had plenty of cycles left to burn. This thing is nearly an order of magnitude faster than the microcontroller I used.
EDIT: I will grant you the I/O is pretty limited, but you could also offload some of the work to an external timer/accumulator
A 32bit @24MHz CPU is extremely overpowered for those use cases.
Qi operates in the 87-205 KHz range. A power tool is several orders of magnitude slower.
The fact that dipshit won an academy award for editing just kills me inside a little more every time I think about it.