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Erik Malund
10/01/09 07:35
Modified:
  10/01/09 07:37
Read: 407 times
Mt Airy, Nc
USA


 		 #169338 - I see no con2 connections on your schematic and ...
Responding to: ???'s previous message
while the con2 connections may suffice with the internal pullups in the '51 there is no way the display is going to be visible (except maybe in total darkness) without external pullups on the con1 wires. If you want it really bright you may need a driver (such as an Allegro offering) for CON1.

Erik

List of 28 messages in thread
TopicAuthorDate
TEMPERATURE MONITORING DEVICE USING AT89C51        JR Requiroso      10/01/09 03:26      
   Divide your problem into parts      Mahesh Joshi      10/01/09 03:59      
      ADC is working fine      JR Requiroso      10/01/09 04:05      
   29.9 is what you implemented        Juergen Christoph      10/01/09 04:17      
      I don't get it.      JR Requiroso      10/01/09 04:35      
         OR this way also      Mahesh Joshi      10/01/09 04:45      
         Did you try?      Andy Neil      10/01/09 04:49      
            Debugging techniques      Andy Neil      10/01/09 04:55      
            tried it      JR Requiroso      10/01/09 05:21      
   Test your Display routines using DIP switches      Mahesh Joshi      10/01/09 04:21      
   Excellent question      Steve M. Taylor      10/01/09 06:23      
      agreed, but one thing missing      Erik Malund      10/01/09 06:27      
         8 data lines for 7-seg      JR Requiroso      10/01/09 06:38      
            I see no con2 connections on your schematic and ...      Erik Malund      10/01/09 07:35      
               also      Erik Malund      10/01/09 13:02      
               CON2 is good.      JR Requiroso      10/03/09 09:20      
         7 segments, plus DP      Andy Neil      10/01/09 06:46      
            the 8 data lines are each segment + dot      JR Requiroso      10/01/09 08:54      
      Thank you      JR Requiroso      10/01/09 06:30      
   Look at your code      Jerson Fernandes      10/01/09 08:23      
      You're right      JR Requiroso      10/01/09 08:53      
         First try to solve the simplest things like DELAY      KONSTANTINOS L. ANGELIS      10/01/09 10:46      
   Problem Solved!      JR Requiroso      10/02/09 01:11      
      We ought to have this as an example of a well-framed query!      Richard Erlacher      10/02/09 08:55      
         Absolutely      Steve M. Taylor      10/02/09 12:43      
            Fix the FAQs?      Andy Neil      10/03/09 01:40      
            agreed, but there is one fly in the ointment      Erik Malund      10/03/09 07:00      
               it's not a big fly      Richard Erlacher      10/03/09 12:32      

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