How to Make Arduino Frequency Counter

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also i am using lcd to display the frequency, dutycycle values

learnwithsaravana
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dear sir i doing a project like a arduino frequency meter but instand of using potentiometer i use two switches for increment and decrement the duty cycle of constant frequency value. how an i program in arduino. please help to program an arduino code

learnwithsaravana
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Sir kindly reply to my following query.I will be really thankful
I am trying to detect 10k Hz frequency using same arduino code but different frequency generator ciruit.The frequency is generated using simple pic12f683 (using pwm function in microcC compiler).The lcd shows some wrong frequency instead of 10k.
Sir please suggest some solution

chandimalik
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How I can send de actually Frequency to the display?

marvinheckmann