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Topic: Some cheap Chinese kits. (Read 1300 times) previous topic - next topic
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Some cheap Chinese kits.
While I was on my midterm I took the opportunity to solder up some cheap Chinese electronic kits. ;)

First on was a digital hourglass style egg timer. It worked no problem, until I decided to try it on 9v instead of 6v, and then it died.

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I then made up a digital clock. Interestingly this one has no RTC chip on board, instead it uses an Atmel AT89C chip and a 12mhz crystal.
AT89C Datasheet

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I stuck some kapton tape on the bottom of this one to stop any shorts

 

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