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Connect laptop keyboard to a PIC

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Guest

Connect laptop keyboard to a PIC
Posted: Tue Sep 29, 2009 2:22 am

Hi Someone have try to connect a laptop keyboard to a pic? Tanks

Guest


Posted: Tue Sep 29, 2009 2:44 pm

Hi, Search the archives for 'PS2', and you'll find what you are looking for! Jeff

Guest


Posted: Wed Sep 30, 2009 7:31 am

hi I already have tested a PS2 keyboard. The problem is the laptop keyboard have many pins to connect. I have searched in the google but I didn't find anything :(

FvM

Joined: 27 Aug 2008
Posts: 2337
Location: Germany

Posted: Wed Sep 30, 2009 8:26 am

Reply with quote

Quote:

the laptop keyboard have many pins to connect

Yes. As the good news, there's no electronic inside the keyboard or a particular protocol to implement. It's just a switch matrix. As the bad news, you have to figure out the matrix. Additional problem: The keyboard must not necessarily use low ohmic switches, they may have a considerable on-resistance or even work based on capacitance change.

Good luck!

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