mango-pi extension board adds additional 2xUSB2.0, LRADC and Ethernet port

Last Updated on April 10, 2023 by pg@petergamma.org https://oshwlab.com/kristianchok/mango-pi-extension https://forum.mangopi.org/t/extention-board-2xusb2-0-i2s-lradc-and-rj45/2114 https://forum.mangopi.org/ If this board does not work with the Mango Pi Pro and Debian, then there is something wrong with it.