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Or you could put a RasPi in a waterproof box, running off battery/solar/wall, configured to connect to whatever wifi it can and SSH/SSL to an EC2 instance or similar.

Boom, you can throw it anywhere in a neighborhood or apartment building and access it from the cloud. You could leave one behind at each stop when traveling to get a distributed network solution.

It's still a solution in search of a use case...though they could be used as TOR exit nodes.




I've wanted to do something like this for a while now (I was going to call it "sub rosa linux"). Little linux machines that would try to stay connected to any network they could attach to and be as undetectable as possible. While I like the idea from a geekery point of view, I'm not sure what the real, legal uses would be.


Are there guides to setting up solar powered Pis?


Well, a 60W/h battery would, in theory, power it for one day. I'd use something like an old motorcycle batter. (12V 10Ah) Which might run for 2 days continuous.

Then, charging, you'd want at a bare minimum, a 10Watt solar panel. That, at an average of 6 hours usable sunlight each day, could possibly keep you running. Get a few dark stormy days though, and you'd run out of juice I think.

Could be fun. I'm tempted to co-host my Pi in Austria now that I'm looking at using Arduinos for my project instead. (Order of magnitude less current drain and instant start, which is awesome)


> Well, a 60W/h battery would, in theory, power it for one day. I'd use something like an old motorcycle batter. (12V 10Ah) Which might run for 2 days continuous.

I do this currently with a raspberry pi in the front of my backpack, using a 4500mAH lithium ion battery I bought off Amazon. Works great. It gets about a 12 hour charge so far, but I haven't really been keeping careful track of battery life.


You'd need a deep cycle battery. You'd kill a motorcycle battery pretty quickly. I'd strongly recommend a sealed battery too.


I recommend picking up one of these on eBay: http://en.wikipedia.org/wiki/Radioisotope_thermoelectric_gen...

I "know a guy" who will recharge it for you.


It is so choice. If you have the means, I highly recommend picking one up.


You can quite easily find startlingly cheap solar powered USB chargers, intended for use with mobile phones.


See also: how my coworker bricked his iPhone.




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