Morgan Olsson wrote: > Den 2008-01-16 19:18:49 skrev Timothy Weber : > > The trick with analog voltage sensor however is to use four wires; two GND connected only at LM35. > One for power, and one for signal reference. > More precisely, use three wires + screen; and use screen as GND power. > (the other wires in th ecable are positive supply, and output voltage) Makes sense - but of course the increased cost of a three-wire shielded cable is another factor to be considered. -- Timothy J. Weber http://timothyweber.org -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist