Key logger help

So l'm looking to make a hardware keylogger or any ideas on how to get my dads admin password he works in cyber and said if I get his admin password he would bring me out to dinner l've been searching auroud on how to build one but most of the time it's just software the components I have is a raspberry pi 3B+ and an arduino urn rev 3 a pc with kali on it and of course flash drives. Thanks if anyone can help.

submitted by /u/MR_DERP_DUCK
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