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OSH Park
Low Battery LED Trough Hole Board
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Low Battery LED Trough Hole Board
by![](../../gravatar.com/avatar/d8f77e64eb031ded2644f3be4f0bb811ea98.jpg?s=16)
2
layer board of
1.00x0.69
inches
(25.40x17.48
mm).
Shared on
July 29th, 2016 07:58.
LED Turns on once battery is below set value using the POT. uses 2 NPN 3904 Transsitors and 3 Resistors and a 6mm Pot all can be bought from Taydaelectronics.com