Circuit to measure the frequency of a square wave , where ?

[PJMDS]

A friend of mine ask me if I could find a circuit that can measure the frequency of a square wave and display it on one or more seven segments displays , i couldn't find any circuit on the NET so I'm asking in this great forum , can you help ?

 

[davorin]

Re: Circuit to measure the frequency of a square wave , wher

Have you heard of google? (o;

Returns lots of information when you search for "freqency counter schematic" like:

**broken link removed**


I assume you want to do it on a discrete basis?
Or you intend to use microcontroller/CPLD/FPGA?
Frequency range?


And do not forget to also search in here!!!!

 

[PJMDS]

8)

I sent those links to my friend , he wanted something simple just to do some experiences , thanks

 

[DarkJedi]

Re: Circuit to measure the frequency of a square wave , wher

Check this out, maybe it'll help, is not the simplest thing but is very well organized and written.