This article is to show the real example on how to upgrade Power meter solution announced as Arduino power meter platform generally. Normally, Arduino power meter platform has the problem that if the electricity is cut off to Arduino board, the accumulated data or the real time data can be lost. Since such a problem is regarded as a serious problem currently, the author implemented a special power meter module to prevent this problem from happening later. Therefore, from now on, if we use Arduino power meter platform and this special power meter module together, we can avoid such a problem completely.
You can refer the below link, if you need more detailed information on it.
Tag : 201405, Arduino UNO, W5100, Ethernet shield, Power meter module