http://www.scienceprog.com/interface-multiple-keys-with-one-wire-and-save-pins-of-mcu/ ScienceProg serves scientific, embedded, biomedical engineering, physics based contents. If you want your article or scientific project to be on this site, do not hesitate to contact and send to scienceprog@gmail.com. Mon, 13 Oct 2008 05:56:57 +0000 http://wordpress.org/?v=abc http://www.scienceprog.com/interface-multiple-keys-with-one-wire-and-save-pins-of-mcu/#comment-4636 Sanoop Tue, 26 Dec 2006 07:53:41 +0000 http://www.scienceprog.com/interface-multiple-keys-with-one-wire-and-save-pins-of-mcu/#comment-4636 Hello Sir, I too have the same doubt as Amin. What if more than one key is pressed. I am planning to interface a keypad of 30/40 keys. is it feasible using this design. If not kindly give me an alternative. Regards Sanoop B SIL Hello Sir,
I too have the same doubt as Amin. What if more than one key is pressed. I am planning to interface a keypad of 30/40 keys. is it feasible using this design. If not kindly give me an alternative.
Regards
Sanoop B
SIL

]]> http://www.scienceprog.com/interface-multiple-keys-with-one-wire-and-save-pins-of-mcu/#comment-2326 scienceprog Wed, 11 Oct 2006 13:31:29 +0000 http://www.scienceprog.com/interface-multiple-keys-with-one-wire-and-save-pins-of-mcu/#comment-2326 Well if you push multiple keys than you will get summary voltage. If there will be few buttons you might will be able to decode(Just a thought). But in fact this circuit is to work with one button at one time. Well if you push multiple keys than you will get summary voltage. If there will be few buttons you might will be able to decode(Just a thought). But in fact this circuit is to work with one button at one time.

]]> http://www.scienceprog.com/interface-multiple-keys-with-one-wire-and-save-pins-of-mcu/#comment-2314 amin Tue, 10 Oct 2006 11:55:07 +0000 http://www.scienceprog.com/interface-multiple-keys-with-one-wire-and-save-pins-of-mcu/#comment-2314 hello How can push multi keys in the same time and detecr what keys are push and send to the ar micro? thanks hello
How can push multi keys in the same time and detecr what keys are push and send to the ar micro?
thanks

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