AVR-Chat

>
>Just for interest, SSR's have been around for 25 years or so. (Think of them as
>opto-isolators with industrial strength AC or DC outputs.) A real SSR uses an
>LED to drive a photo transistor or diode on the output side. This opto link
>provides the input/output isolation. (If the thing uses a mechanical relay on the 
>input, it should not be called a Solid State Relay.)

I agree, but they are out there.. Beware.