One PSU for Pi, WebCam, Wifi and 12v Motor

Hi all,

Got a little project that is nearly it's completion and just looking to plug in (literally) the final piece of the puzzle.

I want to be able to power my Pi, USB Camera, Wifi Dongle and a 12v dc gear motor, from one slim-as-possible wall plug power supply.

The way I have things at the moment is:

Pi plugged in using stock power supply. The wifi dongle and USB cam are plugged directly into the pi.

Motor connected to an L298N board powered by a 9v battery for testing.

As I said, I'd like to have one power supply that can provide the 12v ~2a required for the motor, and the 5v Xa required by the Pi.

Here's the motor I'm using: http://www.pololu.com/catalog/product/1591

Can anyone recommend a good power supply that's as small (and cheap) as possible, that will allow me to leave the motor and pi plugged in all day.

I'm from the UK so would only be looking to buy products available here.

Thanks for your help.

Many external hard drives have (or used to have - seems less common these days) dual-voltage power supplies. I just searched on ebay for "5V 12V PSU" and this was the first possible one that came up: http://www.ebay.co.uk/itm/6-PINS-HDD-HD ... 3f08712595

Thanks for the link. I was hoping for one that I wouldn't have to hack apart and mess about with too much.

Is there such a thing?

It wouldn't take long to knock up an adapter with a PS/2 socket at one end and a micro-USB at the other, plus whatever connector you need for your 12V motor. Personally I'd just grab a USB-micro USB lead, remove the USB end, and solder it to an inline PS/2 socket. If you're hoping to buy something with those connectors already in place I think you'll be out of luck.

I only need micro-usb and a 12v power and ground, will the above be ok with that?

If so, I'd better get searching for connectors...

Yes, it'll have 5V, 12V and GND in the PS/2 plug. Just be very very careful that you connect the right micro-USB wires to the right PS/2 pins to avoid having an ex-Pi on your desk

Fantastic.

Thanks for your help Dave!

Yes, it'll have 5V, 12V and GND in the PS/2 plug. Just be very very careful that you connect the right micro-USB wires to the right PS/2 pins to avoid having an ex-Pi on your desk

Yes, it will have ex-Pired....

Badum tish!