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Keypad interfacing

Guest CaptnKebec
Guest CaptnKebec
in The Home Cockpit Support Forum

Featured Replies

Hi everyone,I have install a small telephone keypad in my avionics stack, now I have to interface it with the PC. I know I need some kind of a matrix decoder to do the job. Anyone knows what circuit and ICs I can use. It's a 3 x 4 matrix. You can see it in the picture attached.Thanks

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