Dec 102013

We have lowered our shipping rates in our store from 16,50 € to 11,25 € – worldwide. Have yourself a berry Christmas!

The shop is still in German, but we’re going to switch to WooCommerce most probably, soon – and it will be in English, then. Please bear with us. If you want to buy something, and have trouble with the language, please send us an e-mail and we will assist you!


Dec 062013

We are looking into the next generation of Raspberry Pi equipment. And we see micro SD cards!

We’ve tried the Adafruit and the pIO adapter. The pIO is a better solution in our view for fixed installations of Raspberry Pis – the card is mounted sideways and can’t be removed that easily. Plus, the machining on the case looks nicer.

Here are some first photos:


This case has a transparent bottom, so you can see the machining for the pIO adapter.

Right now, it is a bit too small to fit the microSD card perfectly ( I believe this case actually was machined for the Adafruit adapter originally). We will work with our partner TEKO to ensure a perfect fit, of course!


As you can see, the µSD card can’t be retrieved from the case without actually opening it. Nothing sticks out!

TEKO is looking into providing some rubber plugs for the opening (a new mould for the case is possible, but expensive).


This is another view of the SD card slot.

Dec 062013

This is a prototype for a project with an Austrian partner, with a rotary switch mounted inside a pi3g case. We are able to provide custom machining on our custom cases, and assembly services. Please contact us if you are interested.


Case closed, rotary switch is mounted. The opening had to be enlarged for a good fit of the switch. A plastic ridge on the top of the switch base was in the way.


A view from the inside – the switch is mounted with glue in this prototype.


The opened case from above. This is a stock Raspberry Pi Mod B 512 MB.

Rotary switch

The rotary switch is order number 1123676 from Farnell (Lorlin, PT6509/BMH rotary switch with three poles and positions). It will fit in exactly one position into the TEKO/pi3g Raspberry Pi case, which is shown above.

As already stated, the opening had to be extended to allow space for the plastic ridge. It is about 2 / 3 of the thickness of the case at this point, making a machining in steps (accomodating the ridge inside the case, hidden from view) impracticable. This is, because the case would be too thin at this point for attaching the switch with a nut.

Thermic implications

We tested with “stress” (stress –cpu 5 –io 5 –vm 5 –vm-bytes 10M –timeout 360000s).


As you can see, the temperature inside the case stays below 45 ° C at 20 ° C ambient temperature, even under high load. Thus, the rotary switch does not adversely impact the Raspberry Pi’s performance. (Processor auto-regulation by the Raspberry Pi begins at 60 ° C AFAIK).

Further research

We recommend further research on Mouser, RS and Digikey to look for a better-fitting option, whích will require less space in the case and less machining / finishing. For a hobby project this rotary switch might be a good option, though.

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