This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push ...

Thierry Guennou, writes: “The concept of this board is to build an open, very versatile frequency counter, so it can be used to measure a wide variety of signals.” Built around an AVR microcontroller ...

Making a microcontroller perform as a frequency counter is a relatively straightforward task involving the measurement of the time period during which a number of pulses are counted. The maximum fr… ...