The MagPi - Issue 23

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Welcome to Issue 23 of The MagPi magazine.

It’s party time here at The MagPi Towers, celebrating our second birthday! To mark this milestone, The MagPi is pleased to provide another massive chance to get your hands on some fantastic Raspberry Pi goodies, with over £2000 worth of tasty treats for our readers to win! Thank you to all our sponsors who have kindly contributed towards this massive collection of prizes. See pages 18-19 for more information.

This month, you’ll find us in the club with Sonic Pi.  The MagPi has an exclusive of Samuel Aaron’s brand new release of Sonic Pi v2.0 and how it's helping to build the underground music movement of 'live coding'. Samuel describes what's new in v2.0, along with some basics to get you up and mixing in no time.

Jacob Marsh from ModMyPi is back with another great tutorial on physical computing, this month describing how to use 1-Wire temperature sensors. We look at how to build your own XMPP chat server in Gianluca’s Chat Room article, then Bernhard Suter provides the next article in our Linux tool shed series where he describes the Bash shell.

Michael Petersen begins his two-part series on using the Raspberry Pi to study atmospheric pollution. In this article, he introduces us to the main subsystems involved in the multi-sensor array, which is used in the research balloons which are sent into the lower stratosphere of Utah. We also take a look at stackable hardware with Sai Yamanoor’s article about GrovePi.

Our very own William Bell has been working overtime this month with no less than three articles. First, he shows how to interface BrickPi with Scratch, then he describes how to bring Minecraft to the real world, and finally the C++ Cache series makes a welcome return with an explanation of classes.

Why not head over to our Facebook page and let us know your favourite article over the last two years, or even what you want to read about over the next 12 months!


The MagPi is an online magazine dedicated to the Raspberry Pi, created by the community for the community. It's a great way to get to grips with learning how to program your Pi and how to get started on building hardware projects; it’ll also help you find out more about the community around the device and demystify the command line.