Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
03/29/10 19:49
Read: times


 
#174607 - Remember that there is more than push buttons out there
Responding to: ???'s previous message
Pushbuttons other other switches used in keypads should normally have quite short bounce times.

The really long bounce periods is more common when having flip-type or rocker switches. And they may also be highly asymetrical. And their internal design may be 100% controlled by a spring, making it impossible for a user to increase the contact pressure - all we can do is try to remove contact pressure by trying to hold it between the two states.

List of 18 messages in thread
TopicAuthorDate
switch input > interrupt (debouncing)            01/01/70 00:00      
   double post            01/01/70 00:00      
      Why the extra hardware?            01/01/70 00:00      
         wow            01/01/70 00:00      
            other ISR recommendation            01/01/70 00:00      
         or the other solution (my favorite)            01/01/70 00:00      
            using timer            01/01/70 00:00      
               Some switches have very long bounce time            01/01/70 00:00      
                  a lot depends on the switches themselves            01/01/70 00:00      
                     which is a $#@!! disaster            01/01/70 00:00      
                        Remember that there is more than push buttons out there            01/01/70 00:00      
                        What about the others?            01/01/70 00:00      
                           Majority of implementations synchronizes with key down            01/01/70 00:00      
                              Now I'm confused ...            01/01/70 00:00      
                                 Not Sure About The Code            01/01/70 00:00      
                                    More info on PC keyboard            01/01/70 00:00      
            Short spikes            01/01/70 00:00      
   The real problem with debouncing            01/01/70 00:00      

Back to Subject List