please dont rip this site

Debouncing Switch Inputs

Any mechanical contact will actually make and break many, many times on each closure. This is because the mass of the moving contact, combined with the spring inherent in all metals, will make it literally bounce off after the initial strike, and several times thereafter.

Jack G. Ganssle did some experiments and captured the waveforms of a bunch of switches, disproving many popular myths about switch bounce. In particular, elastomer button outputs don't "bounce" so much as very slowly rise and fall. The "bounce" on such elastomer button outputs can be eliminated with a Schmitt trigger between the button and the digital logic. "A Guide to Debouncing" http://www.ganssle.com/debouncing.pdf Jack G. Ganssle 2004, 2008

Debouncing Inputs with PICs

Debouncing Inputs with SXs

See also:

Archive:


file: /Techref/debounce.htm, 2KB, , updated: 2013/7/23 10:41, local time: 2017/10/20 13:20,
TOP NEW HELP FIND: 
54.81.6.121:LOG IN

 ©2017 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE! / 

<A HREF="http://www.piclist.com/techref/debounce.htm"> Debounce Switch Inputs</A>

After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.


Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?

  PICList 2017 contributors:
o List host: MIT, Site host massmind.org, Top posters @20171020 RussellMc, Van Horn, David, James Cameron, Sean Breheny, IVP, alan.b.pearce, Neil, David C Brown, Bob Blick, Denny Esterline,
* Page Editors: James Newton, David Cary, and YOU!
* Roman Black of Black Robotics donates from sales of Linistep stepper controller kits.
* Ashley Roll of Digital Nemesis donates from sales of RCL-1 RS232 to TTL converters.
* Monthly Subscribers: Gregg Rew. on-going support is MOST appreciated!
* Contributors: Richard Seriani, Sr.
 

Welcome to www.piclist.com!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  .