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Unread 08-08-2013, 16:45
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Re: Battery powered raspberry pi

Quote:
Originally Posted by ohrly? View Post
Supercaps would be the cool, but I was originally thinking of using something like this: http://www.ianker.com/product/79ANS1052-BA.

Should I send this as a separate proposal?

Pros:
- Only needs to be replaced/recharged every few matches, in case one forgets.
- Totally isolated power supply
- Technically very easy (plug into RPi and you're done, use the other port for whatever USB peripherals you need)
- Much lighter than a laptop
- Should be quite safe, with unmodified COTS cables

Cons:
- Not as cool or fun as SuperCaps
- Obviously needs to be exempted from R34
I think you should ask about it separately. It really is 2 different potential solutions but towards the same goal. If FIRST is okay with a COTS battery supply for the boards that is another simple and effective way to solve the problem. Plus items like that are available in existing local stores which is a nice bonus. The only thing I will caution about items like that is that some of those battery packs have a button on them that you need to press to get output and if the load is disconnected for a short period the output will turn off until that button is pressed again.

Besides something like that needs little explaination. There's really no serious custom circuit there.
It would be easy to ask an official question in the official question forum when the season opens.
FIRST would really only need to say yes or no to answer it like that.
That would be one not to miss.

Last edited by techhelpbb : 08-08-2013 at 16:53.