Hi,
mal schnell "gegoogelt":
http://www.atmel.com/dyn/resources/p...ts/doc1232.pdf
http://www.avr-asm-tutorial.net/avr_.../keyboard.html
http://winavr.scienceprog.com/exampl...-language.html
http://www.8051projects.net/keypad-i...rogramming.php
http://www.serasidis.gr/circuits/lcd_keys/lcd_keys.htm
http://www.keinschnickschnack.de/ete...kt_und_adc.pdf
Gruß
Fred
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