ESP32

https://www.espressif.com/en/support/download/overview

Sample codes:

https://www.espressif.com/en/support/explore/sample-codes

http://esp32.net/

https://en.wikipedia.org/wiki/ESP32

ESP32 Tutorials

https://hackaday.com/2017/03/01/esp32-tutorials/

Play list do youtube de tutoriais do ESP32: https://www.youtube.com/watch?v=jhjZZkKupk8&list=PL3XBzmAj53RnZPeWe799F-uoXERBldhn9

https://www.dobitaobyte.com.br/primeiros-passos-com-esp32/

https://www.dobitaobyte.com.br/selecionar-uma-cpu-para-executar-tasks-com-esp32/

Secret Serial Port for Arduino/ESP32

https://hackaday.com/2017/08/17/secret-serial-port-for-arduinoesp32/