Author Archives: liz

Digital signal processing with teeny-tiny tap-dancers.

When we wrote about accelerating Fast Fourier Transforms (FFTs) on the Pi back in January, several people asked what sort of real-world application FFTs can have. We talked about numerical analysis, cryptography, spectrograms and software-defined radio, among other things, in the comments on that post. All the same, FFTs are something that those who don’t get excited by maths can find a bit dry, and it can be hard to find a good demonstration of FFTs that works for those of you who like to think about things visually

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Digital signal processing with teeny-tiny tap-dancers.

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Trending Vending: Pi-powered custom Oreos

So you’re at SXSW . And you want an up-to-the-minute cookie. What could be nicer than a customised Oreo, filled, flavoured and printed with the aid of a Raspberry Pi (in such a way that you can watch what’s happening yourself) all depending on what’s trending on Twitter at the moment?

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Trending Vending: Pi-powered custom Oreos

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Welcome to the newest member of the Raspberry Pi family!

If you’ve emailed our info@ address in the last year, spoken to us about trademarks or talked to us on Facebook or G+, you’ll have bumped into the indefatigable Lorna. She went on maternity leave a couple of weeks ago, and today she had a little boy.

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Welcome to the newest member of the Raspberry Pi family!

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Blowing in the (fetid subway) wind

A quick post today: I’m at the airport gate waiting to get on a plane. I sent out a tweet about this brilliant advertising application of the Pi last week, but so many of you missed it on Twitter and have emailed to tell me about it since then (including one Dr Eben Upton) that I thought it deserved a spot here. Here’s a digital billboard that responds to the wind created by an approaching train

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Blowing in the (fetid subway) wind

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MagPi issue 21 – out now!

Last month’s MagPi fundraiser for a Volume 2 binder was a roaring success: check out how they did on KickStarter . As you’ll know unless you’ve been living in an internet-free commune, The MagPi is the free, monthly Raspberry Pi magazine, created by the Raspberry Pi community. We at the Foundation have no involvement with The MagPi beyond thinking it’s terrific: there are tutorials, listings, project ideas and more for people of all levels; from kids picking up a Raspberry Pi for the first time, to the most grizzled and hairy of systems engineers

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MagPi issue 21 – out now!

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A GCSE lesson

Ben Llewellyn Smith is Head of Computing and ECDL manager at AKS in Lytham St Annes. He showed us this video just before last week’s Jamboree, to demonstrate his newly installed classroom Debian server being used by a class of GCSE students who all use Raspberry Pis

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A GCSE lesson

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A map of your Pi

A quick post today: I’m pretty behind on work. (I’ve wasted most of today trying to find a new hotel room in San Francisco that, unlike the one I slept in last night, doesn’t have biting insects. I have now found one, and a wifi connection

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A map of your Pi

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Gameboy cosplay (Pi-powered, naturally)

We have no details about this other than the video below. (A picture appeared on Reddit last August, but there’s been absolutely no other information: we do not know who these people are, what the event they’re at is, how many worked on the outfit, or where they’re from.) But it’s magnificent, so we had to share

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Gameboy cosplay (Pi-powered, naturally)

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Graphic equaliser

Our good friends at Adafruit put this project on their Learning System earlier this month. It’s a beaut: you’ll learn something making it, and it looks fantastic when set up. Before we get into the nitty gritty, here’s some video: http://www.youtube.com/watch?v=AMPJH1LOu50 This graphic equaliser (a spectrum analys/zer if you’re from the USA) is made from a RGB led strip, with everything down to the audio processing run on the Pi

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Graphic equaliser

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