HELIOSTAT SUN TRACKER SOLAR POWER FRESNEL LENS GREEN ENERGY …

Josh, get into the Arduino and publish a site where we can find out how to do this. Would love to see how to use a photo sensor to focus a pinhole to align the unit. Arduino is brilliant stuff. $20 gets you to do this, powered by solar, …
Solar Hot Water – http://solarhotwater.cliknsav.com/