Tag Archives: Recantha

Notes from the Cambridge Raspberry Jam

via Raspberry Pi

On Saturday, the half of Cambridgeshire that wasn’t busy footling about in the sun descended on Cambridge Consultants’ offices, kindly lent to the Raspberry Jam folks for the afternoon, for a few hours’ Pi-wrangling. If you’d been there you’d have met a hearty slice of the Pi’s development team: JamesH (and his brother, which surprised and excited me because I’d always thought that James had hatched from an egg), Gert, James Adams, Eben and I were all hanging around and poking things. We had a great time, hooked up with some old friends and met some new ones.

There’s already a report on the day’s footling and poking available from Jonathan Pallant, and I have stolen this photograph from him. Click the picture (or here) to visit his site to read about the Jam.

Ryan picks a winner in the annual Cambridge Dress Like a Lumberjack competition

(I have also stolen Jonathan’s joke. I am not sorry. It’s better than any of mine.)

Huge thanks to Recantha for his hard work organising the Jam; I was really chuffed that one of the things I got to footle with/poke was his homebrew Tricorder, now equipped with pretty much every measuring device known to homo sapiens apart from a Geiger counter. Thanks also to Cambridge Consultants for the use of their space, and to everyone who gave talks and brought projects to share.

Please spread this Jam! You can find out where the Jams are every month in the MagPi, and on the events page of our forums; there’s also a calendar at the Raspberry Jams site (which Alan, the Raspberry Jambassador, promises me is due a makeover soon). If there isn’t one near you, why not try setting one up? There’s help available, and we can put you in touch with folk who will share their experiences and give you lots of advice on organising, publicising and all that good stuff. Leave a comment below, post in the forums, or mail me via the contact page if you’d like to be put in touch with Jam Central.

Recantha expects the next Cambridge Jam to be in September. We’re looking forward to seeing even more of you there!

Recantha’s only gone and made a tricorder.

via Raspberry Pi

I’ve been waiting for…ooh, just over a year, for someone to do this. Recantha, an old hand here in the comments and on the forums, has built a tricorder.

There surely can’t be anyone here without a passing familiarity with Star Trek, but just in case: the tricorder is a made-up thing used by the crew of the Enterprise to measure stuff, store data and scout ahead remotely when exploring strange new worlds, seeking out new life and new civilisations, and all that jazz. Despite its made-up-ness, the tricorder remains a terribly desirable thing. I’ve always wanted to be able to tell whether my planet is M-class or not.

Recantha has bodged together his home-made tricorder using a Pi, some sensors (two for temperature, and one each for magnetism and distance), an LCD display, some switches, a light-resistant resistor, a thermistor and an Arduino Leonardo clone. We hope he keeps adding sensors to it, and maybe, later on, a camera board, until he runs out of space. How about a Geiger counter (this one already works with the Pi)?

Here’s a spot of video explaining what everything on the Picorder does:

(Best of all, the whole thing is cased in LEGO.)

And here’s some more video, showing the thing in action.

If you’re interested in reproducing or building on this project, Recantha’s blogged about it (he has an excellent website, all about Raspberry Pi), and has left a guide to the project over at Pideas, the new site for collecting Raspberry Pi projects. (Go and add something of your own!) Thanks very much for this, Recantha; our office costume parties will now have a dash of added realism. Jamesh has drawn the short straw and will be dressed as Nog.