I’ve been working on an arduino power monitor for the Flying Monkey arts collective. I wrote about it originally
over here on my personal blog.

Arduino Power Monitor

It’s complete, and I think it’s functional. In order to do the final checkout, I have to put it on a wired net, as all that’s available here (at antitronics) at the moment is wireless.

I ended up finding arduino code that Maurice Ribble had written that was almost exactly what I needed, which made it very easy.

Provided that it works, the only remaining thing to be done before putting it into service is to check it against some sort of calibrated standard, or at least to use an accurate AC current meter to compare the output of the current probes with the A/D values that the arduino reads. It should be OK as the analog front end came out of another current monitoring project, but I need to check it.