A little while back, Alex Bate from the Raspberry Pi Foundation discovered us through The Planets box Tom made over a weekend to experiment with a new object form factor, and public domain content, Holst’s The Planets.
Box Prototype No.13 – The Planets from Museum in a Box on Vimeo.
It was lovely to get a note from Alex wanting to find out more, and even better to host her at our office to meet and talk about everything, and write an article for MagPi, the magazine published by the Foundation.
But, what was absolutely the best and a thrill for this little crew, was to walk across the street to the local newsagent and buy as many copies of MagPi #54, and turn to the amazing four-page spread Alex wrote about us!!
And as a special bonus, Alex also included an image in the article that can trigger one of our Augmented Reality experiments!
So, thanks to Alex, Raspberry Pi and MagPi for this brilliant article! (I’ve sent a copy to my parents.) 🙂
The paradigm that Museum in a Box uses to connect objects to related content is simple:
- Take a Thing.
- Put that Thing on a Brain.
- Receive lovely and interesting Content.
You can think of Things in the above scenario as ‘keys’ that unlock the context to the object you’re looking at. Sometimes the Thing is a 3D print of a scanned artefact, sometimes it’s a picture postcard and sometimes it’s fun to leave things a bit ambiguous – what is the Thing you’re holding? How does it relate to the Content you’re listening to?
This is what we explored a bit with Prototype No.13, which you can watch a demo of in the above video.
For this Box, we used some public domain audio from The Internet Archive as the Content and decided to try out a form factor for the Things that reflected what you would be listening to but still leaves a lot to the imagination…
So in case you’ve not guessed yet, we used the Planets Suite by Gustav Holst for this Box, hence our spherical Content keys/triggers. We sourced some half-spheres of birchwood from eBay, as this seemed like the easiest way to get an RFID tag inside a globe shape. Polystyrene may have been cheaper but we like the look and feel of the plain wood. We slapped an RFID sticker on one half and used wood glue to join this to its counterpart.
Making this prototype was also a good exercise in testing the limits of our tech. It turns out that smaller RFID tags have (maybe unsurprisingly) a shorter pickup range when offered up to the RFID reader we’re currently using. In a quick test, the small tag would not trigger the audio when housed in our 32mm diameter balls (so their range is less than 17mm). Fortunately, upgrading to 25mm tags extended the range of our wee planets to about 2 or 3cm. We also found out that tags only register on the reader if offered in a near parallel orientation (as in the GIF above).
We re-purposed a gift box to house our Raspberry Pi, tag reader, battery, audio speaker & cables and made a simple insert with holes to hold the planets in a nice formation and another to suspend them over the RFID reader. (Extra special thanks to my partner and her mum for helping with this!)
All in all creating this Box only took about half a day and we’re very pleased with the results 🙂