[Moved] optocoupler interfaced with 89c51

[najuka]

hi

my project in which i had connected optocoupler pin to microcontroller now i want to display how many time optocoupler crossing zero on lcd what should be the code plz help mi out!!!

 

[milan.rajik]

You have to count the number of pulses and display it.

 

[najuka]

You have to count the number of pulses and display it.

yes i want to display the count of optocoupler on lcd

 

[milan.rajik]

Try this code.

http://grietinfo.in/projects/mini/eee/doc-a.12-frequencymeter.pdf

http://sites.google.com/site/munish4u911ex/Home/8051projects-simulations/8051-freqcounter