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???
07/19/07 17:43
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Msg Score: +3
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#142043 - Like this
Responding to: ???'s previous message
I said:
Basically, you connect all the 'a' segments together & connect to one pin; you connect all the 'b' segments together & connect to the next pin, etc for all 7 (or 8) segments.
Then, you have another 'enable' line for each digit. You strobe the enables in quick succession, and keep writing the appropriate digit data to your 'segment' pins.
http://www.8052.com/forum/read.phtml?id=33366

Something like this:

Multiplexed 4-digit 7-segment display
Only very much faster, so that your eyes don't notice that there's actually only ever one digit "lit" at a time.

It relies upon the human eye's so-called "persistence of vision" - as do television and movies...

List of 9 messages in thread
TopicAuthorDate
multiplexing            01/01/70 00:00      
   Back to basics            01/01/70 00:00      
      basics of multiplexing            01/01/70 00:00      
         Look here            01/01/70 00:00      
            Like this            01/01/70 00:00      
               Sweet!            01/01/70 00:00      
                  re-use            01/01/70 00:00      
   See here            01/01/70 00:00      
   Your previous thread...            01/01/70 00:00      

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