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Thread: Measuring Analog Voltages w/o Sharing Grounds
www.piclist.com/techref/microchip/ios.htm?key=analog
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face BY : Don Hyde email (remove spam text)



I was thinking along the lines of using another PIC (like maybe 12C671)
powered from the motor supply making the motor measurements, but
electrically isolated from everything else, then sending a bit stream
through an optocoupler to the PIC with the EEPROM.  It's cheap (<$2 in 25's
from Digikey), tiny (8-pin), and has an 8-bit A/D.

> {Original Message removed}
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See also: www.piclist.com/techref/microchip/ios.htm?key=analog
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