Hello, guys, girls and guru's!


I will have to measure AC voltages related to mains, and want some galvanic isolation betwen the ADC and the micro. These days most ADC's have some sort of serial interface, using only two wires (and ground).

Has any of you, worked with optoisolated i2c? Any hints?

I did search, and got a few hints, but not anything really interisting.

BTW - if anyboddy got another idea to do this measurement in a simpler way, please speak up.

8 bit, and a few samples/sec is quite sufficient.

Ha' en god weekend!

Per Guldmann