Hi,
How can I read the AC with Arduino? I need only to check if some AC device on or off is...
There is no problem with DC, but AC?
Hi,
How can I read the AC with Arduino? I need only to check if some AC device on or off is...
There is no problem with DC, but AC?
I was pointed to a nifty style of optoisolator like this one that is designed for an AC input (with a resistor and a capacitor on the AC side). They're on the digikey order I've been working up (getting past that minimum order amount before I place an order).
-j