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RasPi Magazine

RasPi Magazine No. 30

From the team behind Linux User & Developer magazine, RasPi is the essential guide to getting the most out of the Raspberry Pi credit-card sized computer. Packed with expert tutorials on how to design, build and code with the Raspberry Pi, this digital magazine will educate and inspire a new generation of coders and makers. What you’ll find in every issue: • Get hands-on with your Raspberry Pi – we show you the best way to code, build and create with this awesome educational computer. • Awesome RasPi projects in each issue – get inspired to create something amazing with projects big and small. • Our easy to follow step-by-step tutorials and designed for all abilities and age groups. • Need to know more about anything Raspberry Pi? You can chat with the team and get your questions answered.

País:
United Kingdom
Língua:
English
Editora:
Future Publishing Ltd
Periodicidade:
Back issue only
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nesta edição

1 minutos
welcome

The Raspberry Pi was a revolutionary piece of kit – clever, hackable, great value – but not content with that, Eben Upton and the rest of the crew decided they could do even better. Released in November 2015, the even-smaller-than-pocketsized Pi Zero packs in 512MB RAM, a 32-bit ARMv6 chip, and a low price of just $5. Amazing! But what’s even more amazing is what you can do with it. This issue, we’ll show you how to set up the Pi Zero to get the most from it, and then dive into a project that lets you use the diminutive SBC as part of your very own wearable! Plus, learn how to combine multiple Pis into a cluster (who said supercomputing was just for supercomputers?) and much more. Enjoy! Editor Get inspired Discover the…

7 minutos
set up the pi zero

So you’ve picked up one of the tiny yet powerful Zeros, but before the coding fun can begin, you need to get more familiar with it. Don’t worry; we’ll walk you through the Raspberry Pi Zero, the required cables, how to prepare a NOOBS SD card, and how to solder the GPIO header onto the Pi. Once the Pi is working and booted we’ll show you how to get it working on Wi-Fi through the Raspbian user interface. You’ll need a USB hub for this, or even just to use a keyboard and mouse together. We’ll also show you how to prepare a Raspbian SD card for headless use (either VNC or SSH) with only a Wi-Fi adapter or USB-to-Ethernet adaptor. THE PROJECT ESSENTIALS Raspberry Pi Zero microUSB power supply Soldering iron…

5 minutos
self-driving rc car

Zheng Wang has an academic background in electrical engineering and has put what he has learned into action with his Pi car project. Where did the idea to develop a self-driving car come from? Believe it or not, I actually did this for a school project. A lot of my interests centre around machine learning, so I decided to do something that heavily involves machine learning and the concepts that surround it. I did some research online and found a very inspiring self-driving car project made by David Singleton, which showcased what he was able to achieve with just an Arduino board and a few other items. I was amazed to see that the RC car can drive itself along the track without aid and wondered if I could replicate a similar…

8 minutos
make an interactive, zero-powered wearable

THE PROJECT ESSENTIALS Pi Zero USB portable power supply USB Wi-Fi dongle Micro USB convertor Hat or other clothing of your choice Old LED Christmas lights Wearable tech is an ever-growing industry, bursting with smart watches, fitness gadgets and pulse-rate necklaces. For many, this technology is nothing new; enthusiasts have long created their own wearable versions. Clothes that light up on contact, masks that change voices and weapons that glow! In this tutorial you will use your old Christmas LED lights, Python and the Pi Zero to modify a hat that lights up when you receive a specific tweet from your timeline. The Pi Zero is the perfect size and can be embedded into the clothing. You can customise the project for your own wearable tech, perhaps shoes that light up or a pair of gloves or…

7 minutos
build a pi cluster with docker swarm

THE PROJECT ESSENTIALS Github repository https://github.com/alexellis/docker-arm Arch Linux for ARM https://archlinuxarm.org Docker is a framework and toolchain used to configure, build and deploy containers on Linux. Containers provide a means to package up an application and all its dependencies into a single unit. This makes them easy to share and ship anywhere, giving a lightweight and repeatable environment. Each application runs in its own isolated space sharing the host’s kernel and resources, in contrast to a virtual machine which needs to ship with a full operating system. A Docker container can be started or stopped within a second, and can scale to large numbers while having minimum overhead on the host’s resources. The Docker community has built out a clustering solution called Swarm which, as of version 1.0, is claimed to be “production ready”. Our single Raspberry…

5 minutos
monitoring audio

With such a small physical footprint and a low power requirement, the Raspberry Pi is a perfect platform that you can use to build your own scientific equipment. We will look at how you might be able to use your Pi to monitor and analyse sounds in your environment. This is useful if you are listening for particular sounds. You need a Raspberry Pi, some kind of USB microphone, and some kind of USB wireless connection if you want to check on the monitoring process remotely. The specifics of the hardware are up to you, but you should be able to use almost anything that is available to you. This article will focus on the Python code that you will need in order to record this audio and do some…