I'm new to working outside of the standard arduino environment but I need to be able sample at a consistent known rate that is slower than the esp32's default rate (i think i clocked it in at 100,000 hz or so). rather than messing around with
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if (currentMillis - previousMillis >= interval)
statements i was hoping i could do this by just changing the prescaler factor, there is heaps of information on how to do this on avr micro controllers (eg. http://maxembedded.com/2011/06/the-adc-of-the-avr/
) but I can't find any information on how to do this on the esp32.