measuring frequency

how can i measure frequency of a mains supply

hi there, ive got a project i have to do which involves creating something that will measure the frequency of a mains supply then display it on the computer ( which i have to create a program for using java ,C or any other language).

please can somebody help me

thanks for you help in advance

Posted by help (m_pelin21@hotmail.com) on 11/02/2005, at 14:29 GMT