Hi all, I'm new to Arduino, and have a quick question. We're trying to interface the Arduino with the Kill-a-watt to measure the current and voltage, and are following the tweet-a-watt project. However, instead of using the XBee, we'd like to interface the Arduino directly. I'd like to be a little …

Reading voltage from transformerless power supply (Kill-a-watt)

system April 7, 2012, 5:59am 2

I smell a Darwin Award...

You ~~can~~ must use linear optocouplers to get an isolation barrier.

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