Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
i'm trying to build circuit to monitor many phone lines 8-10 line (when busy-holding-ringing...) and display busy lines on lcd
using pic microcontroller
i face problem with voltages to deal with 48-50 v dc which is normal voltage for phone line and 88 v AC which is for ringing with pic...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.