Step 6: Finishing it up
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I have a question about the movement.
How many degrees do the panels move each day?
When it gets dark or with heavy storm clouds it heads toward the Eastern limit switch. If the sun comes back out it resumes tracking.
Duane
Red Rock Energy
redrok.com/led3xassm.htm
1. I would suggest that the wheels be mounted on an A-frame so that struts could be placed from the outside edges of the panels to points tangent to the wheel to provide bracing against strong winds.
2. I find that sun position sensors aren't really necessary for pointing since we already know where the sun will be at any given time of the day. Also, some sun trackers may have difficulties tracking the sun's position on overcast days and may operate erratically on partially sunny days when clouds intermittently block and reveal the sun. A system built around small uProcessor with an on-board clock can be programmed to provide positioning information to your drives, and if you want to get fancy, the sky's the limit for adding sensors, providing web connections, what have you.
If you measure the power from the panel this other direction will be greater.
Furthermore, the sensor is influenced by other sources of light such as reflective sand and snow adding even more power.
Duane
Red Rock Energy
redrok.com/led3xassm.htm