Build a 9-digit Pulse Counter for under $20

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Roughly, at $20 to build? ThisĀ 9 digit pulse counter is an excellent example of home built tools. Josh, the builder found himself repairing a device and in need of a pulse counter. With the components cheaply available, he just built his own. He says that it has a few limitations, like display brightness, but overall it seems to do the job well. All the stuffs, steps and even PCB can be downloaded from his site at your own will.

Courtesy of Imsolidstate

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