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2 Apr 2008

The counter contains only three inexpensive ICs (well, add a regulator and three transistors), and operates from 6 – 15V DC at about 25mA. The most expensive single item is the LCD display, which is an industry standard 16 x 2 dot matrix module, which can often be found used or at bargain prices. This isn’t a kitset, but the parts are easily obtained, and the circuit can be built using any prototyping technique, or you could design your own PCB. The prototype was built on a small commercial strip board. [via]

AVR Frequency Counter with LCD - [Link]

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