This simple design uses the 20 pin ATTiny2313 microcontroller to measure frequencies from 1Hz to over 2MHz. 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 frequency is displayed on a standard HD44780 16x2 LCD. A bright white text, blue backlit LCD is included with the kit.

The input voltage needs to have at least a 3V swing to be able to trigger the counter.

The kit requires a regulated 5VDC supply such as our 1090-031 (see realted products link below).

Kit Includes:

* FunCount PCB
* Preprogrammed ATTiny2313 Atmel Microcontroller
* 16x2 Blue backlit LCD
* 3pin Screw Terminal
* 10kOhm Contrast potentiometer
* 20MHz Crystal
* 2 - 22pF Cap
* 100uF Cap
* 0.1uF Cap
* 2 - 10kOhm Resistor
* 2 - 390Ohm Resistor
* Green LED
* 16pin Male Header
* 16pin Female Header