[Carl] recently upgraded his home with a solar panel system ... wanted to get more data out of his system. He managed to build his own monitor using an Arduino. The trick of this build has ...

The core of the project is a Raspberry Pi, chosen after [Jay] found that an Arduino didn ... The actual solar tracking is done entirely in software, only requiring a latitude and longitude ...

This is the second version of the firm’s OpenTracker system, which is an open source commercial grade GPS/GLONASS vehicle tracker ... use. With additional sensors it is also possible to track humidity ...