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???
01/08/04 21:12
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 		 #62186 - RE: 7 segment display problem
Responding to: ???'s previous message
Hi Raja,
The following web site shows how to interface seven
segment LED's to a 89C2051 (an 8051 derivative). It uses
common anode LED's but that is easy to fix. Just change
the PNP (2N3907) transistors to NPN (2N3904) transistors
and some software which is used to turn on each digit.
http://chaokhun.kmitl.ac.th/~kswichit.../clock.htm
Regards,
Charles Bannister


List of 40 messages in thread
TopicAuthorDate
7 segment display problem            01/01/70 00:00      
   RE: 7 segment display problem            01/01/70 00:00      
      RE: 7 segment display problem            01/01/70 00:00      
         RE oops            01/01/70 00:00      
         RE: 7 segment display problem            01/01/70 00:00      
            RE: 7 segment display problem            01/01/70 00:00      
   RE: 7 segment display problem            01/01/70 00:00      
      RE: 7 segment display problem            01/01/70 00:00      
      RE: 7 segment display problem            01/01/70 00:00      
         RE: 7 segment display problem            01/01/70 00:00      
         RE: 7 segment display problem            01/01/70 00:00      
   RE: 7 segment display problem            01/01/70 00:00      
      RE: 7 segment display problem            01/01/70 00:00      
         RE: 7 segment display problem            01/01/70 00:00      
            RE: ROB REDDING            01/01/70 00:00      
   RE: 7 segment display problem            01/01/70 00:00      
      RE: 7 segment display problem            01/01/70 00:00      
         Re: Mr. Erik            01/01/70 00:00      
   RE: 7 segment display problem            01/01/70 00:00      
      RE: 7 segment display problem            01/01/70 00:00      
      RE: 7 segment display problem            01/01/70 00:00      
         RE: 7 segment display problem            01/01/70 00:00      
            RE: 7 segment display problem            01/01/70 00:00      
               RE: 7 segment display problem            01/01/70 00:00      
                  RE: charles            01/01/70 00:00      
                     RE: charles            01/01/70 00:00      
                        RE: charles            01/01/70 00:00      
                           RE: charles            01/01/70 00:00      
                              RE: charles            01/01/70 00:00      
                                 RE: talking turkey            01/01/70 00:00      
   RE: 7 segment display problem            01/01/70 00:00      
      RE: Olgev            01/01/70 00:00      
         RE: Olgev            01/01/70 00:00      
            RE: Olgev            01/01/70 00:00      
   RE: 7 segment display problem            01/01/70 00:00      
      RE: 7 segment display problem            01/01/70 00:00      
         RE: 7 segment display problem            01/01/70 00:00      
            One doubt            01/01/70 00:00      
               RE: One doubt            01/01/70 00:00      
                  RE: One doubt            01/01/70 00:00      

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