|FunCount Frequency Counter|
|Written by nuxie1|
|Sunday, 21 September 2008|
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This simple design uses the 20 pin ATTiny2313 microcontroller to measure frequencies from 1Hz to over 2MHz. The frequency is displayed on a standard HD44780 16x2 LCD. A bright white text, blue backlit LCD is included with the kit. The device requires a regulated 5V power supply.
The PCB also provides access to the unused microcontroller pins, so that the board can also be used as a general purpose AVR development board with an LCD.
The input voltage needs to have at least a 3V swing to be able to trigger the counter.
A complete kit can be purchased from www.nuxieshop.com, along with pre-programmed AVRs and blank PCBs.
|Last Updated ( Wednesday, 06 May 2009 )|