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12/19/05 15:31
Modified:
  12/19/05 15:36

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#105529 - open project: christmas lightchain
For amusement of my family (and mine too) I made a simple "lightchain": 16 LEDs of various color connected to a shift register - I used two 74LS164s and conneced anodes of LEDs to the outputs, cathodes to GND (I know it is absolutely violating each design rule, but, hey, this IS a toy!). The shift register clock and data is controlled by 8051 (actually a P89V51RD2) and the current - ehm - "firmware" performs 3 "effects": runs a randomly "appearing" "lights" forward and backward and flashes alternating each other LED. The "effects" change after a certain time.

I know that similar lightchains can be bought in each other store for some small money; but I think this is a form of a hobby project - not particularly useful, but full of fun.

Is anybody interested in contributing to it, maybe adding other "effects" or making other enhancements? I will place the current "firmware" onto my 8052.com website tonight.

Jan Waclawek


List of 28 messages in thread
TopicAuthorDate
open project: christmas lightchain            01/01/70 00:00      
   Take care...            01/01/70 00:00      
      with music too            01/01/70 00:00      
      Thanks for warning, Kai            01/01/70 00:00      
         Looks nice!            01/01/70 00:00      
   OK, count me in. Here's Schematic            01/01/70 00:00      
      software            01/01/70 00:00      
         Knight Rider LED pattern Software            01/01/70 00:00      
            Knight Rider            01/01/70 00:00      
   Another option            01/01/70 00:00      
      Knight Rider Software Corrected            01/01/70 00:00      
   Too much time            01/01/70 00:00      
      some more led sequencers            01/01/70 00:00      
         variations            01/01/70 00:00      
      tastes great; less filling            01/01/70 00:00      
         I was wondering which one it would be.            01/01/70 00:00      
         beer            01/01/70 00:00      
            beer            01/01/70 00:00      
               Sam's Light            01/01/70 00:00      
               better            01/01/70 00:00      
                  who can ever agree on taste            01/01/70 00:00      
                  best beer            01/01/70 00:00      
                     The Henley Rowing Club            01/01/70 00:00      
                        "Authentic"            01/01/70 00:00      
                     Beer tastes            01/01/70 00:00      
                        Sure            01/01/70 00:00      
                  Leffe'            01/01/70 00:00      
   update            01/01/70 00:00      

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