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02/18/06 19:05
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 		 #110273 - Multiplex BCD Rotary Switch Input?
I've got six BCD Rotary Switches that I'm using to initialize the two players' clocks but the 8052 I'm using is an AT892051 (at least until now). As far as I can see, P1 can be dedicated to reading these 24 pins.

Reading the switches is only done once, at the start of the program, so I don't want to upgrade the 8052 and waste power unnecessarily.

Can someone suggest a typical input device that wouldn't use a lot of power (maybe even be capable of being shut down)?

Thanks,
Peter.


List of 35 messages in thread
TopicAuthorDate
Multiplex BCD Rotary Switch Input?            01/01/70 00:00      
   Thumbwheels or ROTARY?            01/01/70 00:00      
      Rotaries            01/01/70 00:00      
   Why not            01/01/70 00:00      
      Why not leave it out?            01/01/70 00:00      
         Proposed Development            01/01/70 00:00      
            you've got choices to make ...            01/01/70 00:00      
               re choices ...            01/01/70 00:00      
                  The obvious...            01/01/70 00:00      
                     re: The Obvious            01/01/70 00:00      
                  What's the deal with the switches?            01/01/70 00:00      
                     re: switches            01/01/70 00:00      
                        What???            01/01/70 00:00      
                           re switches            01/01/70 00:00      
                              distributors only care about quantity            01/01/70 00:00      
                                 save with sharing HD44780s?            01/01/70 00:00      
                                    If you can live with the load            01/01/70 00:00      
                                       Re living with the load            01/01/70 00:00      
                                          it's still YOUR project            01/01/70 00:00      
                                             re MY project            01/01/70 00:00      
                                                not the ides, the implementation and the            01/01/70 00:00      
                                                   Over-view            01/01/70 00:00      
                                                      Maybe it's the type of switch ...            01/01/70 00:00      
                                                         Thanks guys and 'bye for now            01/01/70 00:00      
                                                            Or just start small            01/01/70 00:00      
                                                Take it for what it's worth.            01/01/70 00:00      
                                                   continuing            01/01/70 00:00      
                                                Smart            01/01/70 00:00      
                        have you considered            01/01/70 00:00      
                           That was something he DIDN'T want            01/01/70 00:00      
            Options            01/01/70 00:00      
               If I wanted to buy a chess clock            01/01/70 00:00      
                  re chess clocks            01/01/70 00:00      
                     practice mode            01/01/70 00:00      
   cd4021_cd4094 shift registers            01/01/70 00:00      

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