Dnia 11.03.2012 o 14:47 Chris Lautre <chris.lau...@karusoft.com> Chris Lautre <chris.lau...@karusoft.com> napisał(a):
> Hi > > A while ago I saw some discussion about a Vibration sensor. > I have found an adjustable one that works great: > http://www.assemtech.co.uk/ > There are 2 models NPN(PDS1000-1) and PNP(PDS1000-2) output. > They are about 40 GBP. > > I have the circuit below working fine. > The DS2406 reads the Relay open/close. > I know there must be a way of reading the output without using the relay. > (My circuit design knowledge is a bit limited to say the least) > Can anyone suggest a suitable circuit? I'm not an expert myself. I would use a optoisolator. Those are cheap and draw less power than a relay. http://en.wikipedia.org/wiki/Opto-isolator Here's one 4N33 it about $1 and you will need some resistors http://www.me.umn.edu/courses/me2011/arduino/technotes/4N33.pdf Look at the page 4 on the left there is example of a circuit. However the one thing I'm not sure if this particular one(4N33) would run 5V on the detector side. If you have some local electronics shop I think they will give you one suitable for 5V. Or maybe the 6N138 can be supplied with 5V on detector side. I never used those but once built one optoisolator from a diode and phototransistor an put them in a black shrinktube. If your local shop does not have optoisolaotrs(optocouplers) the will certainly have a phototransisotr(which looks like a LED) -- p4trykx ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
