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Andy Neil
07/19/07 11:43
Read: 2168 times

Msg Score: +3
 +2 Good Answer/Helpful
 +1 Informative
#142043 - Like this
Responding to: Andy Neil'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.

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
multiplexing      P.sathiya Moorthy      07/17/07 10:43      
   Back to basics      Andy Neil      07/17/07 11:52      
      basics of multiplexing      P.sathiya Moorthy      07/19/07 00:03      
         Look here      Andy Neil      07/19/07 02:17      
            Like this        Andy Neil      07/19/07 11:43      
               Sweet!      Rob Klein      07/19/07 15:12      
                  re-use      Andy Neil      07/19/07 15:57      
   See here      Steve M. Taylor      07/17/07 15:41      
   Your previous thread...      Andy Neil      07/17/07 16:28      

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