ModMyPi LTD | Working a Raspberry Pi Zero from an AA Battery Pack

The appearance of the Pi Zero has introduced the world of Raspberry Pi into the realm of wareable expertise. It is time to throw off the shackles of your micro USB wall charger, and begin powering utilizing batteries. So, seize your nearest soldering iron, pull out these AA batteries out of your child's Furby and lets get to work! This can in fact work on a "common" Raspberry Pi 2, however your batteries will not final fairly as lengthy given the upper present draw.

We'll be utilizing a 5V USB Voltage Booster Step Up Module for this venture. Why? It means we are able to use one in every of our switched 3V battery packs (or a kind of tiny 3.7V LiPo's), which inserts completely into the footprint of the Pi Zero, and it additionally ensures we have now a regulated 5V voltage going into our Pi. It additionally means we are able to neatly energy the Pi with out straight soldering onto the Pi itself. These booster can take from 0.9V as much as 5V, so that they're nice for utilizing no matter you've gotten hanging round, or integrating your Zero into one other venture.

Relying on how far you wish to take this venture, you want just a few instruments:

You may additionally want some components:

How To?

1. Get all of your gear prepared!

2. Solder the battery pack onto the 5V USB booster module, constructive to constructive, damaging to damaging.

3. Plug it in :D

You need to use a USB to Micro USB adaptor as seen right here, or any USB to Micro USB cable to make the connection. It is fairly a neat and protected solution to battery energy your Pi!

One Step Additional

In order that's the straightforward one ^^. In case you're not afraid of somewhat snip and swap, then learn on, we'll make it smaller nonetheless! Please be aware. We won't settle for any returns for merchandise in the event that they break as soon as you've got began soldering or snipping bits off them! You may want the DIY Micro USB Connector talked about above for this half.

1. We're now going to solder a micro USB port straight onto our 5V booster board. Step one is to take away the USB port. You'll be able to desolder it, or simply snip the connections (which is simpler in my view). Get some diagonal cutters, and snip the 2 retaining solder joints, one on either side. With these snipped, you may really bend the USB port upwards and snip the 4 connecting factors. That is ultimate, because it leaves a pleasant level to solder onto!

2. Test your polarity

There's a fantastic article right here on DIY USB pinouts however you may verify the solder factors within the image under:

3. Use your wire cutters to snip up some quick lengths of versatile wire and seize the micro USB port from the DIY pack.

4. Solder it collectively - constructive to constructive, damaging to damaging. If you wish to double verify the polarity, place a multimeter throughout the 2 denoted factors of the USB 5V booster module and verify it outputs 5V appropriately whenever you swap in your battery pack.

 5. That is it! UNLIMITED POWER!!!!!

You'll be able to wrap all of it up right into a neat package deal (please excuse the cable tie, it was all I needed to hand!). However it provides you an thought of how one can cheaply and simply energy a Zero on the go, in a neat and compact package deal.

A Step Too Far?!

In case you're actually courageous, you may fully forgo the usage of the micro USB plug and solder the 5V booster wires straight onto PP1 and PP6. I've not examined this, so do not blame me in case your Zero goes pop! :)