Friday, 10 July 2015

How to make electrical sandglass

08:34  Telli k  No comments

Hey, this is the electrical sandglass we want to make, it not shows the time as perfect as a clock,although it is of no actually use for showing time, just for fun, for electronics nerds :). Buy the pcb and components 1. We buy some PCBs(here I recommend SysPCB Shenzhen China, fast prototyping se...
By: jeanzhu

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from Instructables: exploring - technology - robots http://ift.tt/1HpVkpq

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