ahh this should quell some disidents on the quality of the hacks. It has led, circuits, and is simple.

This is brilliant. I wonder if you could do this without the pannel attached.

This is an awsome hack. I was looking into some of these panels to give away as door prizes for the VW bus festivals I go to.

clean, simple and well executed.

Thank you

nate: what kind of bus do you drive?

me:

Fuel Injected 77 Riviera with a 78 engine so I get hydro lifters as well :).

Of note, go westy sells a similar panel here ( http://www.gowesty.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=GVW-14970&Category_Code=ac-elec ) for 40 dollars that clips directly to your battery, although they are currently sold out.

yay for replacing all the fuel lines right after i bought it! i almost passed out driving that thing 80 miles home with a broken gas cap and a leaky fuel line. ive been told the best thing to do is upgrade to metal aircraft fuel lines, as they dont melt when it gets really hot, althought i havnt done that yet.

#2 – no it doesn’t look like you could use it without the panel. the panel provides the power to the voltage regulator to run the micro. so, you would have to provide a power source for it, and that power source also would be attempting to charge the battery.

cool ;)

lets all get together and make hackaday like Counter Strike.
i’ll start:
voteban steve (the dumb one)

Trouble is, most newer cars won’t allow voltage IN to the 12v outlets. These solar devices do nothing for your battery.