Stamp and current sensing(Phone ringer cont.)
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So, after doing some research I'm stuck, I need a little info on how
to get the Stamp to read a break(reciever pickup) in the AC line
(telephone ringing 20hz). RC circuit? Latching relay? Any ideas
helpfull.
And no, I don't want the smarter folks out there to do it for me,
just point me in the general direction.
Thanks.
Ian
to get the Stamp to read a break(reciever pickup) in the AC line
(telephone ringing 20hz). RC circuit? Latching relay? Any ideas
helpfull.
And no, I don't want the smarter folks out there to do it for me,
just point me in the general direction.
Thanks.
Ian
Comments
> to get the Stamp to read a break(reciever pickup) in the AC line
> (telephone ringing 20hz). RC circuit? Latching relay? Any ideas
> helpfull.
> And no, I don't want the smarter folks out there to do it for me,
> just point me in the general direction.
> Thanks.
> Ian
<http://www.hut.fi/Misc/Electronics/circuits/telephone_ringer.html>
Read the section titled: "Ring detection circuits in modems".
--
Enjoy,
George Warner,
Schizophrenic Optimization Scientists
Apple Developer Technical Support (DTS)