This looks like an easy way to get some additional GPIOs and UART/I2C/SPI on a Pinebook (or any other laptop)...
https://www.cnx-software.com/2018/02/16/...-over-usb/
https://github.com/gschorcht/i2c-ch341-usb
Found a datasheet in English....
https://hannover.ccc.de/redmine/attachme...341DS1.pdf
There are also EEPROM programmers based on CH341:
https://github.com/setarcos/ch341prog
https://www.cnx-software.com/2018/02/16/...-over-usb/
https://github.com/gschorcht/i2c-ch341-usb
Found a datasheet in English....
https://hannover.ccc.de/redmine/attachme...341DS1.pdf
There are also EEPROM programmers based on CH341:
https://github.com/setarcos/ch341prog
Come have a chat in the Pine IRC channel >>