Ok, so you think I best divide the voltage, say, by 2.5, and then calculate inside the pic... Well that's not a bad idea. I'm thinking to use multicell batts (up to 12 v) and single cell Ni-xx (which are 1.2V). It's irrelevant if I divide the 1.2V by 2.5 (= 0,48V), because I could tie the result level (0,48V) to Vref+ . So, I would not lose any precision. The same applies to say 12V, divided by 2.5 (=4,8V)... The only precaution there is not to be over 5 in Vref (Before the divider: 12.5V) ... correct?
Thanks guys. atrick carosso escribió: > Use two resistors to lower the voltage! > > --- Markos <[EMAIL PROTECTED]> wrote: > > >> Hi guys, >> maybe this is a little offtopic, but >> i'm sure you could >> help me. I'm implementing a simple battery charger, >> and I need to >> messaure voltages ranges from 0 to 12 V. >> ¿Could I use the PIC integrated ADC to messaure >> above 5 V (provided that >> I use the voltage reference pins tied to 0 and 12 V, >> for example)? Most >> external ADC have a 0 to 5V input range.... >> How would you guys solve this? Any Ideas? >> >> Thanks in advance. >> >> >> >> > ------------------------------------------------------------------------- > >> Take Surveys. Earn Cash. Influence the Future of IT >> Join SourceForge.net's Techsay panel and you'll get >> the chance to share your >> opinions on IT & business topics through brief >> surveys-and earn cash >> >> > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > >> _______________________________________________ >> Sdcc-user mailing list >> Sdcc-user@lists.sourceforge.net >> >> > https://lists.sourceforge.net/lists/listinfo/sdcc-user > > > > > > ____________________________________________________________________________________ > Never miss an email again! > Yahoo! Toolbar alerts you the instant new Mail arrives. > http://tools.search.yahoo.com/toolbar/features/mail/ > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys-and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Sdcc-user mailing list > Sdcc-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/sdcc-user > > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Sdcc-user mailing list Sdcc-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sdcc-user
