Solar Module Positioning
The Suntracker project develops a photovoltaic (PV) solar tracking controller. PV solar trackers control the PV panel direction to keep the panel perpendicular to the Sun, maximizing the power output. The power output difference for a fully aligned panel is reported to be in a range of 15~40%, which would be substantial.
Below is the history of prototypes with increasing complexity
|Suntracker2 Revision 4|
|SunTracker2 R4 is the follow-up project to SunTracker2 Revision 3.
This version adds dual-axis control, GPS location, wireless communication option, and drives a set of micro solar panels to demonstrate solar alignment. It is a interim prototype to develop tracking code for driving two NEMA stepper motors concurrently, positioning the horizontal and vertical axis.
|Suntracker2 Revision 3|
| Suntracker2 Revision 3 is a interim prototype to validate basic functionality by tracking the suns horizontal movement (Azimuth angle) across our sky.
The main feature of this prototype is a 32 LED display ring that is self-aligning to north, showing the sun's position. The prototype is used for visual feedback while developing the tracking code, driving a NEMA stepper motor for horizontal positioning.