From: rmowery42@charter.net   
      
   In article <3f3b64a5-c084-435b-b44c-8292463f5b7en@googlegroups.com>,   
   videmos0@gmail.com says...   
   >   
   > Hi,   
   > I'd like to try and build a brake light flasher circuit for a motorcycle   
   (12V).   
   > Brake light should flash 3-5 times then remain on (solid red).   
   > I'm new to electronics so not everything is clear to me. Is it possible to   
   build such a circuit and remain in 12V "domain" or is it necessary to step   
   down to 5V to power an IC (a counter with a clock, for example) ?   
   > I'd like to use a 12V LED bulb (e.g. Philips Ultinon R1157), how would I go   
   about starting a design for a circuit using that bulb?   
   > I'd appreciate any constructive help in the matter.   
   > Best,   
   >   
   >   
   >   
      
   A simple way would to use an Arduino micro processor.  It would require   
   learning  how to program it.  It would be a very simple program, just   
   tell it which pin is the input, count to the number of off and on times   
   and how many times before stopping.  Then a transistor or other power   
   device on the output to handle the current of the bulb.  Those Arduino   
   boards from China are less than $ 5.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)