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???
05/05/08 00:08
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 		 #154395 - The big tradeoff
Responding to: ???'s previous message
Mahmood said:
Do LEDs have to be arranged in certain order on the PCB to make it nice and easy for software to shift data in or can they be put in any order to make it easer to route the PCB then worry about LEDs positions by software which will be a nightmare!

Sounds like an engineering tradeoff to me! Two things to consider:
  • You may be able to find an arrangement that is good for both the software and the PCB layout. That would be ideal, of course.

  • If you find yourself needing complicated software, consider doing most of the processing in a way that is easy for the software. Then use a lookup table technique at the end to translate whatever the software produces into whatever the hardware requires. That might turn the nightmare into a very pleasant dream.
-- Russ


List of 31 messages in thread
TopicAuthorDate
outdoor display            01/01/70 00:00      
   LED sign summary            01/01/70 00:00      
      excellente Senor one comment            01/01/70 00:00      
         LEDs arrangement on PCB            01/01/70 00:00      
            The big tradeoff            01/01/70 00:00      
               Reverse engineering            01/01/70 00:00      
                  once color get involved ...            01/01/70 00:00      
      Human perception of luminance            01/01/70 00:00      
         nice, correct, but irrelevant in this respect            01/01/70 00:00      
   Ambient Light Sensor            01/01/70 00:00      
      anything you can read that is ...            01/01/70 00:00      
         TSL250R            01/01/70 00:00      
            maybe not, maybe so            01/01/70 00:00      
               Late Question            01/01/70 00:00      
                  l/f l/v            01/01/70 00:00      
                  i thought those common            01/01/70 00:00      
   LED Panel Fonts            01/01/70 00:00      
      go to the PC            01/01/70 00:00      
      http://www.8052.com/users/bahrio/            01/01/70 00:00      
      Here is a 9Wx7H Font            01/01/70 00:00      
      8x8 char font            01/01/70 00:00      
         go for a proportional font            01/01/70 00:00      
   I Agree; Go Proportional            01/01/70 00:00      
      that's the one            01/01/70 00:00      
         Rotating....            01/01/70 00:00      
            so do I            01/01/70 00:00      
               Luxury?            01/01/70 00:00      
                  no, no squirt            01/01/70 00:00      
      thats exactly the one I was looking for            01/01/70 00:00      
   LED Panel FAQ            01/01/70 00:00      
      LED Panel FAQ does not match what I 'know'            01/01/70 00:00      

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