Controlling a Keypad Matrix Via a Microcontroller

About: Name: Bård Lund Johansen Engineer, Materials Technology

Intro: Controlling a Keypad Matrix Via a Microcontroller




Just some pics following a discussion over at HackADay:


http://hackaday.com/2011/06/22/24-cellphone-buttons-controlled-with-6-microcontroller-pins/

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