in this context (using Arduino IDE to program a ESP8266) do the following three things mean the same thing:
I’ve tried to research this, but its unclear. just trying to get this straight in my head.
specifically, there is an option under tools for “Esspressif FW” and the options are various "nonos-sdk"s.
so I’m ASSuming that even though the Arduino IDE compiles my code and downloads it to the chip, there is still a bootloader (aka “firmware”?) running on the chip, and it is one of the versions of the sdk?
sorry, but i’m coming into this from mostly programming PICs, where (to my knowledge) there wasnt a bootloader and your compiled program was actual machine language…