If you have an Android device, you might be interested in my other solar monitor project, check it out at http://sourceforge.net/projects/classicmonitorProject Description
The Netduino Solar Monitor accesses data from a Midnite Solar Classic charge controller using the Modbus protocol or the Outback Flexmax controller using the serial interface. The solar monitor can also monitor information from a Outback FX inverter using the serial interface. The Netduino Solar hosts an embedded web server that displays the pages below which can be viewed on a smart phone or tablet.
Main status page
Gerber files are available under 'source code/hardware/gerber'.
Fabrication is available from http://oshpark.com
Netduino with NetduinoSolar Shield
20X4 LCD display, Netduino and Shield in a 3" by 6" box