I haven&#x27;t seen anything commercialized yet.  As far as I know the only way to do it at this point is to still build your own.  There are lots of options, but for something simple you can go with something like this:<p><a href="https:&#x2F;&#x2F;learn.adafruit.com&#x2F;tweet-a-watt&#x2F;" rel="nofollow">https:&#x2F;&#x2F;learn.adafruit.com&#x2F;tweet-a-watt&#x2F;</a>