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By mrburnette
#75723 I suspect such things may be online in someone's blog, but a quicky Google did not show up a candidate.

However, when considering Arduino implementions, I would recommend referring to these two resource links:

Architecturally, the Arduino implementations are wrappers arround the Espressif IDF. Books such as and
are free/low-cost reference PDFs that can easily be opened in 2 windows on your development machine for quick compare. Personally, I prefer the earlier links, but to each their own.

The Espressif Arduino forum for ESP32 is also a great place to do research.

Good luck,