A Mini Heliostat
This project page describes how to make a sun-tracker (heliostat) using a solar panel, current sensor, servo, and some other parts.
- laser cut acrylic parts
- plastic flanged bushing (3/8" inner diameter, 1/2" outer diameter)
- solar panel from kid wind
- Grove micro servo
- 4 x M2 x 8mm screws and nuts
- 4 rubber feet
- 12 x #6 x 0.5" screws and nuts
- Peel paper off the laser-cut parts.
- Insert the plastic flanged bushing into the appropriate acrylic part. If you have trouble, flip the acrylic part (holes in laser cut parts tend to be tapered).
- Attach the servo using M2 screws and nuts.
- Mount the servo attachment (servo horn) onto the appropriate acrylic part using M2 screws and nuts.
- Attach the solar panel using #6 screws.
- Place rubber feet on the bottom of the large bottom plate.
- Finish assembing the structure using #6 screws and nuts.
- Send the heliostat sketch to your Arduino using the programming tool.
Try to modify the Arduino sketch so that it only searches angles near the last best angle.