HDMI Extender KVM alternative
https://blog.danman.eu/reverse-engineering-lenkeng-hdmi-over-ip-extender/
KVMC with arduino
http://gmurdocca.livejournal.com/4211.html
https://www.pjrc.com/teensy/
Other teensy Projects USB client Usb Host2
http://www.pjrc.com/teensy/projects.html