Hi All, My Arduino UNO is on its way! I am planning to build an advent calendar for my first project - I want it to automatically light the correct day. I'm a software developer, so the code wont be a problem (Once aquainted with the syntax etc). What I'm not sure about is how to control the 25 b…

Lighting Lots of 1.2v Bulbs...or Bright LEDs

system October 16, 2012, 1:38pm 2

Hi,
you probably need a shift register, as explained here:

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