Wouter van Ooijen ha scritto:
>> Can you suggest the simplest way to achieve that result?
> 
> For the hardware I would prefer a mains-powered PIC that does the A/D 
> and transmits the (possibly processed) result to the main PIC by 
> optocoupler. Eliminates the transformer (bulky, uncalibrated, might 
> change the waveform) in exchange for an extra PIC, optocoupler and a 
> C-based power supply.



Yeah, a good one for another project :)

In this case the whole board is already made up with power, PIC, other 
"things" etc.
I stated the most of its characteristics in my other replies.

thank you Wouter anyway :)
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