SparkFun will be closed May 25, 2015 for Memorial Day. Orders placed after 2pm on Friday the 22nd will ship out on Tuesday. Thanks!


Member Since: March 15, 2010

Country: United States

  • Be careful to orient your stacks of LEDs correctly. Read the silkscreen carefully as it is correct. The graphic in the pdf instructions is wrong/outdated. I know because I mistakenly used the orientation of the “special led” to the crystal in the photo as a guide and got it backwards. No big deal, I learned how to desolder with a desoldering pump along the way.

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