Solar robot question

Hello, I don’t know if this is covered elsewhere but I was wondering what method I would use to program a robot to work just off of solar power, no batteries.

How would I program a robot to keep track of what it is in the middle of doing so that the next time the sun comes up, it can resume its tasks? I know solar isn’t very powerful for this stuff but I’m thinking that a bunch of little robots could do the job.

Ok you pulled my arm and want the “grand scheme” lol. http://www.societyofrobots.com/robotforum/Smileys/default/wink.gif"%20%20alt=";)"%20%20title=“Wink”%20%20style="vertical-align:%20bottom;%20font-family:%20Verdana,%20Arial,%20Helvetica,%20sans-serif;%20line-height:%2017.4720001220703px;%20background-color:%20rgb(231,%20234,%20239); I want to convert construction vehicle toys into robots that can do some excavating, like an exo-skeleton that I install onto the toy… dig dig dig… dump dump dump.

Oooo… side thought… another robot hooked up to a solar battery bank that does nothing but shoots a laser beam to the photvoltic cells of the robots, this way the only thing that needs a battery is the laser emitter.

The main issue with using only solar power is if there is not enough sunlight. Almost all solar powered systems use the solar panel to charge a battery.
If you are using a microcontroller and only a solar panel, you’ll need a voltage regulator, and without a separate battery, it will constantly be rebooting and lose whatever it did up to that point.