I built a solar tracker like this one modified to use my Arduino. If you haven’t seen any videos by ScienceOnline before, you’re in for a real treat! Check out their website too http://hilaroad.com/ for some more great ideas and scientific knowledge.
This was my first real Arduino project and I think it went rather well. I learned a lot but now I really need to get out in the sun to do some real testing. I’d still like to use this to power some other projects and / or add some other features… so many empty pins on that RBBB board.
a few pics
parts & materials
- RBBB board from Moderndivice.com – $13.00
- x2 Monocrystalline Solar Cells ( 37 x 66mm ) from solarbotics.com – $8.25 ea
- x2 Large Servos from – sparkfun.com – $12.95 ea
- 5V voltage regulator
- x4 photocells
- x2 10k Ω resistors
- IN4004 rectifier diode from radioshack ( 276-1103 )
- x4 rechargeable NiMH AA batteries 1,2V 1800mAh
- battery holder
- bread board
- metal bracket left over from ikea furniture