NWHirschfeld
Technology and Creativity

Raspberry Pi Case

The Raspberry Pi is a small and cheap computer with an ARM-core. It features a lot of GPIOs for custom extensions and runs on very low power. When I saw the first pictures and blog posts about this little device in 2011 I was excited to get one.

Nearly one year later my own one arrived and I started to play around with it.

Specs of my Raspberry Pi:
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Model: Model B, 512MB RAM
CPU: 700 MHz ARM11 (SoC BCM2835)
GPU: Broadcom VideoCore IV (SoC BCM2835)
RAM: 512MB (SoC BCM2835)
2*USB 2.0, HDMI, Composite (Video), RJ45 (Ethernet), GPIO, 3.5mm Klinke (Audio Out)
5 V, ca. 700 mA over Micro USB

To run the Raspberry Pi as a small server it got a case, build out of a computer power supply unit.

The first step was to remove the ethernet, usb and analog audio/video ports from the board and mount them on a prototyping PCB. In this step I also replaced the headphone jack with RCA sockets for an easy connection to my amplifier. A nice side-effect of this modification is to get two more holes in the PCB, useful to mount it in an case.

I removed the old electronics of the power supply and glued some nuts and isolation into the case. In the back of the case I had to cut some holes for the connectors and the big fan hole in the top of the case I could close with a beautiful perforated plate out of my parts box (one of them).

In the next step I added a power supply into my power supply case. A small phone-charger which delivers 5 volt with 3,2 ampere seems ideal for the job. It is strong enough to drive an small 2,5” hard drive aside the Raspberry Pi. To make the device more compact I glued the power supply into the case and added a switch at the front and an IEC socket at the back of the case.

For my aesthetic feeling the whole device was painted in the end.