[Solar Mike]

Originally Posted by boardom

I was looking around for the same type thing, with a bit more... Brains then just an off/on differential controller. These two links are great resources. The Arduino board seems to be the way to go.... Tons of possibilities, very low cost.

Hearth.com Wood Stove and Pellet Stove Forums....and much more! | My New Control System

arduino (woodnotoil)

Another cpu controller that is very easy to program is the PicAxe, they have a mini-basic interpreter inside the chip. Plug them into a breadboard add a couple of resisters and a capacitor and you can connect to the serial port of your PC to program them. They have inbuilt basic commands to read the DS18b20 1-wire bus temp sensors and are absolutely ideal for making solar controllers. Here is a link to the UK site that manufactures them, I believe there is someone in the USA importing them.
PICAXE

Cheers
Mike