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    Firefly Pin    
         
    Firefly    
         
   
Another firefly themed project. I made this pin after the firefly jar.
   
   
Firefly Pin
   
   
Something I'd been wanting to do for a long time. Using the copper etch as a decorative element. I finaly had a chance to do that with this project.
   
    Firefly Pin Switch    
   
I use a coin cell battery to power the LED. The LED is controlled by an ATtiny85, which you can see just on the right edge. The metal pin acts as the switch. I cut the pin in half, and then soldered the two halves as part of the current path.
   
   
May 2018