Thanks, I was thinking, at initial "key on", to illuminate the LED for=20 the same period as the rest of the dash warnings, but programming an on=20 voltage that normally is only while cranking sounds good, and easy to do. On 7/23/2012 9:54 AM, KPL wrote: >> regulator, couple of caps and resistors. Also, I can program a delay of >> say a few minutes before displaying the warning to eliminate the low >> voltage during momentary heavy loads like starting. >> > That's not necessary.. Blink during starting would be an excellent > every-day test to be sure that circuit is working! > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .