Step 4: Wiring up the circuit

Picture of Wiring up the circuit
This shows the circuit I have soldered. I have made it bigger for easier understanding. It can actually be made much much smaller (half the size or even smaller).
You can download a more detailed document on this from my website at:

You're done! Now you can break away from power points and even have Arduino projects out in natural environments without a problem.
konto895 years ago

would a 12v  200mA solar panel be enough?

Great project. This was part of project I'm working on and now it's done. Many thanks.
p2man (author)  Spritegeezer5 years ago
Thanks :) Glad it helped
zerOne5 years ago

Nice Project. 
But one question, how big should the Solar-Panel be to charge the battery ?
Can it also be to big and overcharge?


p2man (author)  zerOne5 years ago
Thanks for the comment :)

It really depends on the voltage of your battery. Different solar cells have different ampere rating and voltage, so you would not something that is too powerful or too weak in comparison to your battery.