Ac voltmeter Ampermeter

[onur]

Thanks for answer.
Another question:
I must do fast electronic fuse using this amp. and voltmeter.
For ex: When current over my set limit, pic output pin must be shutdown very quickly,must be more speed from main ac fuse.
Anybody done do this before?I need some tips or schematic or code ex.

Thanks.

[mister_e]

i would use a comparator interrupt. If the comparator input is greater than the reference, it jump to an Interrupt routine, in there you Shut down the external devices.

could be done with the ADCs reading too... it's just slower.