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What i'm going to show you today is how to run your raspberry pi off the sun using solar power & Battery.




Step 1: What You need

<p>Hello. I have a question to anyone who actually built above setup. What happens when the current from battery runs out and there is not enough sun to power the Pi? I imagine that it switches off but does it automatically switch on then the power is back? </p>
<p>You may want to look into a UPS instead. I have an advanced design for one, I just haven't actually built it yet. I can give you the plans if you like. <br><br>sparky3489 at yahoo dot com </p>
<p>this is a great project, but is there a way to make it switch to wall power once the battery runs dead? I use mine as a web server and I can't have it go down.</p>
<p>yes. it gets more complex though. you need a series of relays which can trigger when the battery voltage gets too low, and when the voltage gets back up to fully charged. </p>
<p>yes. it gets more complex though. you need a series of relays which can trigger when the battery voltage gets too low, and when the voltage gets back up to fully charged. </p>
<p>Checkout a charging circuit, which should get you on your way to a full blown UPS </p>
<p>Been out and got my bits. My plan in the future is to have a solar power cctv system</p>
<p>Little question, why 12V Solar cell + Battery and not 6V ?</p>
<p>hey there is was just wondering if you could run the rpi using this solar panel continously, and if you touched the metal crocodile clips would you get electrocuted?</p>
<p>This is a peak 4W solar panel, and the raspberry pi generally uses about 1.4W (without any add ons), so it should be possible to run indefinitely with direct sunlight. </p><p>Touching the exposed metal on this is definitely ok: this uses a 12V battery, which is well within the safe limit.</p>
<p>If you used a model A, the power would last naerly 3x as long.</p>
<p>great job</p>
this is fantastic. grate job
I think you can get the same solar panel for quite a lot less on Amazon if anyone's looking to make this. It's&nbsp;<a href="http://www.maplin.co.uk/12v-4w-solar-briefcase-348061" rel="nofollow">&pound;30 at Maplin</a>, but only <a href="http://www.amazon.co.uk/N05HN-Solar-Briefcase-Battery-Charger/dp/B003UARDRK" rel="nofollow">&pound;23 with free delivery at Amazon UK</a>.
Does the solar panel have a built in charge controller or are you connecting it directly.
I believe the solar panel has a build in charger controller.
awesome! I just got two of these in the mail, I'm excited to start messing around with them!

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Bio: Making Stuff since the 80's Twitter: http://twitter.com/hackitbuildit
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