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<DIV>Hey Scott,</DIV>
<DIV> </DIV>
<DIV>>...decouple at relay board?</DIV>
<DIV> </DIV>
<DIV>Might be worth a try.</DIV>
<DIV>Like slap a big cap across your remote relay board supply to
ground?</DIV>
<DIV> </DIV>
<DIV>Would be interesting to see how your grounds are connected/ how
beefy.</DIV>
<DIV>Be afraid of breadboards -- high resistance connections possible.</DIV>
<DIV>tapping different places for a ground might yield different voltages due to
simple application of ohms law.</DIV>
<DIV>Of course might look tame until things switch on/off.</DIV>
<DIV> </DIV>
<DIV>Your processor ground should tap close to regulator and not downstream
on a high resistance ground bus.</DIV>
<DIV>Scope should be helpful in seeing what is going on.</DIV>
<DIV> </DIV>
<DIV>Wondering too about signal lines running from processor to 293s</DIV>
<DIV>Might want to shield them?</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>2 cents</DIV>
<DIV>Ron</DIV>
<DIV> </DIV>
<DIV> </DIV>
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<DIV> </DIV></FONT><BR><BR><BR><DIV><FONT style="color: black; font: normal 10pt ARIAL, SAN-SERIF;"><HR style="MARGIN-TOP: 10px">Start the year off right. <A title="http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489" href="http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489" target="_blank">Easy ways to stay in shape</A> in the new year. </FONT></DIV></BODY></HTML>