My son has had an assignment for several weeks now, and he never came up with a project. Now that there is only two weeks of class time left, he finally decided he should work on something. <sigh> So, since I had several solar panels lying around (half of them unopened), I thought perhaps he could do a project where he measures how much power he can get from the solar panels (based on number of panels, direction facing, and so on). My question is:
Do I need an external sensor/meter, or is this something that can be done by the propeller board directly?
I have 3 propeller boards that can be pressed into service for this project, though two of them are currently in existing projects, the third one was too, but it's since become disconnected, and it's a bit of a hassle to reconnect everything, so I'm willing to sacrifice it for the project. :) I can always rebuild the speech device later, though my wife has found other things to use instead of my self-built project <sigh>. Anyway, Just curious if I'd need an external sensor, and if so, which one, and how much trouble it would be to connect to the propeller. The one I gave him to use has a human interface board on it already, so I don't know if that will help or hurt in this particular case. I have 4 solar panels, 3 from radio shack, and 1 I got elsewhere (don't remember where), which is much thinner, so figured perhaps he could measure the different panels, and how much power each one gave and if he does this over the course of several days, and multiple times during the day (I was actually thinking of having him connect it to the computer, so it could keep a running tally of the power read-outs), then it would be acceptable as a complete science project. Any help/suggestions would be greatly appreciated, as I've never tried measuring power input levels before.
Blind programmer, and Parallax customer (bs2, quickstart, javelin stamp, spin stamp and more)