Jan 172016
 
Banana Pi in a Case

My Banana Pi (AKA BPI, CPU AllWinner A20 @ 1 GHz, 1 GB RAM, 32 GB SD-Card as mass storage) is not fast, but nice to run 24/7. Barely draws power and thus could run on a battery for a while. When I saw this I thought “That’s a nice idea. Let me do that with my BPI too”. I always wanted to put the 5″ LCD somewhere permanent anyway: the LCD and the BPI were loosely connected by this fragile flat cable…it was a question of time when it would break. Unfortunately there is no nice case for both units.

So I searched for a usable case. As flat as possible, as small as possible. With or without space for a battery. I was looking for something made of wood, alas plastic took over the world, so I bought one of those. Not perfect, but the best I could find.

2 problems I had:

  1. How to attach everything inside (BPI and LCD) and what to do about connecting cables. The BPI has connectors on all 4 sides. And the cable to the LCD is not very long.
  2. The case opens completely flat, which would make the screen unreadable as well as it would break the cable. So I had to limit the top cover from opening too much. It’s now set at about 100º.

In the end, below you can see how I connected everything.

  • The side of the SD-Card has enough space to remove the card easily.
  • The side of the USB and NIC has enough space to connect normal cables, but many USB sticks are too long
  • Composite video and audio are basically not usable
  • Neither is HDMI and SATA
  • Power connects via barrel connector (alternatively micro-USB, but I don’t use this)

Future improvements:

  • A longer and/or more flexible LCD cable would be nice
  • Being able to connect cables (power, Ethernet) while the case is closed
  • Run via battery. A small 800mAh 7.2V LiPo should last for 4h
  • A custom made case for BPI, LCD, LiPo and charger circuit

 

Top of the Banana Pi in a case

Top of the Banana Pi in a case

Banana Pi in the box, open

Banana Pi in the box, open

Bottom of the Banana Pi in the box

Bottom of the Banana Pi in the box

 Posted by at 20:23  Tagged with: