http://www.microdev.it/wp/it/2018/08/08/esp32-compilazione-micropython-per-esp32/
https://www.zerozone.it/provati-per-voi/primi-passi-con-il-modulo-esp32-cam/14233
https://github.com/tsaarni/esp32-micropython-webcam
https://blog.horan.hk/micropythonesp32.html
http://www.lucadentella.it/2016/12/22/esp32-4-flash-bootloader-e-freertos/
https://icircuit.net/make-esp32-http-webserver-using-micropython/2152