Arduino Toolboxes : PWM Frequency Meter

Download Code With TimerOne Library

Lets Make Simple Things Look Beautiful , It Doesn't Need To Be Plan Text Number Of The Boring Font At The LCD Because It Shows The Freq .
Most Of Us Specially Me While Working With electronics Need Something To Tell Us What Is The Frequency Of Square Wave Or PWM Signal In A Board , Specially When You Are Fixing It "Electronics hardware Maintenance Will Understand Exactly How This Is Important".
In This Project We Used The Digital Clock Version 2 Fonts For Numbers That Was Created For The Clock And Used It In This Project To Display Numbers In This Way.
This Project Uses Interrupts To Get Accurate Time Reading , Also Used Math.h Library For Inf Case , And TimerOne Library For Display Values Every Sec For More Stable Reading On The Display.
We Used INT0 "Pin 2 In Arduino" As An Input Interrupt And As A Test I Used PWM Pin In The Arduino As Input.
Enjoy :)