Setting up Raspbian (and DOOM!)

Introduction The Raspberry Pi is a cross between a typical embedded system – like an Arduino – and a desktop computer. The Pi packs a 700MHz ARM11 Core with 512MB of RAM, HDMI and audio outputs, 2 USB ports, an Ethernet jack, and an SD socket with support for up to a 32GB SD card. In the eyes of some, it’s one of the more powerful, cost-effective embedded boards to hit the market. To others, it’s one of the ...

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SparkFun Blocks for Intel® Edison – Pi Block

Introduction The Pi Block breaks out and level shifts several GPIO pins from the Intel Edison. It presents them in the same configuration as a Raspberry Pi Model B. [caption id="attachment_10558" align="aligncenter" width="600"] Pi Block[/caption] Suggested Reading If you are unfamiliar with Blocks, take a look at the General Guide to Sparkfun Blocks for Intel Edison. Other tutorials that may help you on yo ...

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Interface a button to Raspberry Pi

Raspberry Pi is an ARM architecture processor based board designed for electronic engineers and hobbyists. The PI is one of most trusted project development platforms out there now. With higher processor speed and 1 GB RAM, the PI can be used for many high profile projects like Image processing and Internet of Things. [caption id="attachment_10505" align="aligncenter" width="615"] Button Interface to Raspbe ...

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The New RaspberryPi B+

I feel like the last kid on the block to get one of these new Pi models. But here are a few comments and observations on the latest product from the Raspberry Pi Foundation. This is my 7th Pi which now includes models A, B rev 1, B rev 2 & B+. The RaspberryPi is slowly evolving. First came the model B with 256MB RAM, which was soon replaced by revision 2, having 512MB RAM. The appearance of the A and B ...

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Wheezy & Jessie, more than just a Toy Story

I've just updated Raspbian on a RaspberryPi....it took hours! But this wasn't just a routine apt-get update & upgrade, it was a move from Debian Wheezy to Jessie. So all of my applications where updated, in addition to the operating system and many configuration files. My RaspberryPi runs on Raspbian, which is based upon the Linux Debian distribution compiled for armhf. Some background to Debian Debian ...

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The RaspberryPi model A+

Following on from an earlier post about the B+, I'm now the proud owner of an A+.   As I'd previously produced a simple table showing relative current consumption, I feel obliged to update this by including the new Pi. The new A+ is smaller and cheaper than the A/B/B+ models, making it an ideal candidate for many projects including media players and headless, wifi monitors. It also draws less current, ...

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Raspberry Pi GPIO: mixing voltage levels

"Don't put metal objects into your microwave" and "Don't connect 5 Volts to your Raspberry Pi GPIO" I consider these to be two pieces of well meaning advice for non-technical people. The idea is to help avoid mis-haps by offering generalisations, without going into long explanations. But we are not non-technical people, are we? The background The Raspberry Pi GPIO (general purpose inputs/outputs) operate at ...

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The RaspberryPi model B+ mark 2

I've just been given a new Raspberry Pi. It is my 10th Pi and my first mark 2 board, the Raspberry Pi that is claimed to be 6 times faster than a B+. So it is time to check it out and also measure the current drain using the same test conditions that I've used for my other models. What exactly is it? According to the Element 14 box, its a "Raspberry Pi 2 Model B 1GB", and the box also states that it is "6x ...

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Raspberry Pi Serial Comms – Gambas plus wiringPi

I've been playing around with serial comms on my Pi/Picaxe dev rig. Using Gordon's wiringPi library makes it easy to open the gpio serial comms port on the Pi and write code with Gambas. So this post involves writing a simple Picaxe program, and then using wiringPi and Gambas on the Pi to communicate with the Picaxe. Much of the configuration stuff is described in my previous posts which you can link to fro ...

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Internet of Things (IoT) Extension Lead

Hi Makers! Intro It's about time I shared this one with you all. This project has been going so long, you would not believe. I started this before our Hack Space existed [2011 ish?], and has continued to be in a transient 'not finished, might finish, needs improvement' state forever. This Instructable will hopefully inspire you to go and do something similar with your own take on what this idea aims to acco ...

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