I just finished my college project for this. It gotta a pretty cool concept using keys from computer keyboards, or for those who cant pay for fancy expansive electronical doorknobs heres an alternative LOL… Keypad door knob its a hotkey for your actions…
It is a fully working prototype it was aluminium casted, sandblasted, painted then masked and painted again… If mass produced it would be anodized rather then painted, and letters or symbols laser etched.
Check it out its on my coroflot
I hope you like it.