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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@ptone
Thank you both - I tried to look at the nrf52 datasheet which has register tables, and the scant examples of the peek API - but I wasn't able to get them put together. How does one sort out what peek address to use for a given output pin?
And FWIW - my approach of using auto [x = digitalRead(5); digitalWrite(5,x)]seems to "work" without any visible blink in the LED - not sure what is actually happening at the microsecond or less level. Wonder if espruino is somehow doing both in essentially one step?