In this post i’ll show you the build process with pictures, hopefully helping you to decide if it’s for you, or even just as a hand with setting it up.
Pi Crust: What is it? Why do I want it?
The Pi Crust is a small inexpensive breakout board designed for the Raspberry Pi, allowing you to easily connect jumper wires for prototyping. The different GPIO pin sections are split out into seperate header banks to make it a lot easier to quickly find the pins you’re looking for (no more counting across the GPIO pins).
Whilst splitting out and labelling the GPIO is handy, it also gives you more pins than you would usually have for GND, 5V and the I2C connections, allowing you to expand your project with even more connections direct from the breakout board.
One of the unique features of this particular breakout board is its low profile. Unlike similar boards that mount above the GPIO, the Pi Crust sits low just millimetres from the Pi thanks to the GPIO connector used. This keeps things tidy, and just looks cool. Things have to look cool in our projects – us ‘makers’ need all the help we can get with street cred! “Small is cool”!
The Kit: What’s in the bag?
My kit came from Kickstarter, including bonus stickers and the blue PCB. I’m not sure if the retail kits are the same, but the parts will be the same regardless of colour.
In the bag I got:
- Pi Crust PCB
- 11 headers to solder to the PCB
- 2 round Pi-Supply stickers
- 1 large Pi-Supply sticker
- Info card
PiCrust Bag Contents
Putting it together: Solder time!
I’ve had this kit sitting in my drawer for months, being ignored like the rest of my Raspberry Pi stuff as the start of 2014 has been very busy for me. Things have settled down now, so I was eager to put it all together.
Construction is pretty simple, just look at the stock images and solder the header units the same way. You can’t really go wrong apart from perhaps soldering the wrong side. As long as the “Pi Crust” text is facing upwards, you’ll be fine.
I started with the GPIO connector…
I use Croc clips to hold parts in place where possible
…and before I knew it, had soldered the lot.
Not too messy – that’ll do
Just make sure you get the headers straight before soldering every pin. I like to start with the first pin, check it’s straight (and resolder if not) and then solder the opposite pin on the other side to ensure it will stay in the same position whilst you solder the rest.
** UPDATE 16/04/14 **
Joe Walnes, the designer of the Pi-Crust, got in touch via the comments section to inform me about how to ensure the bottom of the board doesn’t short out on the Raspberry Pi. All you do is add 2 plastic feet, taken from 0.1″ male headers, and super-glue them to the white squares underneath the board. Here’s a picture of mine:
It now has feet – best get it some shoes…
Fitting
The board sits snug to the Pi
Anyone else a bit nervous at the tiny gap here?
It almost looks part of the Pi
That’s all folks, I plan to write a blog showing the board in use soon with a small project – watch this space…
Average Man
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