Thursday, 1 October 2015

Get started with Raspberry Pi

The world of Raspberry Pi is evolving, the hardware and software are constantly evolving. This is how to get started with the latest in the Raspberry Pi world.
Raspberry Pi 2 Model B

Wednesday, 19 November 2014

IoT for Defence

I gave a talk about the Internet of Things for Defence on 18 November 2014. This is the World's biggest and best IoT meetup - here are my slides and some brief notes.

Wednesday, 22 October 2014

Entertainment and the Internet of Things

Why don't people at the cutting edge of Internet of Things developments talk about entertainment?

I have finally put a shape around ideas that have been forming in my mind for many years. These ideas are about the use of technology for entertainment. I don't mean mobile apps or gaming consoles. I mean the whole of entertainment from Opera to Graffiti, Boxing to Birdwatching. By technology I'm particularly interested in the Internet of Things.

Friday, 12 September 2014

Open Office Bullet Point Bug

Open Office is a great free alternative to Word, Powerpoint & Excel. One annoyance is that opening a Word .doc with OpenOffice replaces bullet points with a weird symbol. This Open Office Bullet Point bug is easily fixed...

Tuesday, 9 September 2014

Remote Server Access Without Passwords

How to remotely access a server with ssh without a password and simultaneously limit ssh connections to individual machines.

If you're running your own server for example to host a web server it's essential to be able to log in to the shell remotely to carry out setup or administration tasks. This is usually done by using a 'ssh' connection from your local machine using a username and password which is not the most secure method. Sending passwords over the internet is bad, you may forget the password and if someone in your team leaves you may have to spend time resetting all kinds of passwords.

Thursday, 28 August 2014

XCode 5 Quartz Composer Bug Fix

Apple's XCode 5 has a bug that breaks it's ability to embed a Quartz Composer composition within an application. The post shows how to fix the bug and continue to use Quartz Composer in XCode 5.

XCode is the program provided by Apple for software development for Mac computers and iPhones. It is available free of charge from the Apple App Store and is an incredible piece of software. Apple released XCode 5 in September 2013 together with some bugs.

Quartz Composer is a node-based visual programming language provided as part of XCode and is for processing and rendering graphical data.

Quartz Composer allows you to do some very cool animations easily - so code wrangling doesn't get in the way of your creativity. Embedding a Quartz Composer Composition in an XCode App wraps it in functionality that can grab data from the internet and use it as content within the animation. In my case I built a tool to search, moderate and creatively display tweets.

Monday, 18 August 2014

Fractal Systems from Louis Khan's Architecture

The Design Museum in London hosts the awesome Design of the Year exhibition which I encourage anyone to visit. From July to October 2014 they also showed a collection of architect Louis Kahn's work. One idea from Kahn really stuck in my mind - The Plan of a City is Like the Plan of a Home. It got me thinking about Fractal Systems Architectures.

Friday, 15 August 2014

Mac Printer Drivers for Old Printers

I have a Canon i560 printer but Apple's Mac Operating System no longer supports it. Canon do not have a driver for their old i560 printer for the new Mac OS. Gutenprint  (formerly known as gimp-print) is the answer to this printer problem.

Monday, 11 August 2014

Problems Installing Google Chrome on Mac

I just got a new Macbook Pro with OSX 10.9.4 Mavericks and could not install Google Chrome. The download installer link always hung and would go no further. The answer to this problem is...

Wednesday, 9 July 2014

My NATO Workshop

I have been organising a NATO workshop entitled 'Cross-Domain Integrated System Health Management Capability' that will take place on 16th and 17th October in Brussels. We have just finalised our programme and enrolment has just been opened on NATO's public website. It is tremendously exciting to see the official announcement and the awesome set of papers and speakers.

Wednesday, 4 June 2014

Android Hello World App

App Inventor for Android is an open-source web application originally provided by Google, and now maintained by the Massachusetts Institute of Technology (MIT). This post is a step-by-step guide to creating a 'Hello World' app with App Inventor.
App Inventor allows newcomers to computer programming to create software applications for the Android operating system (OS). It uses a graphical interface, very similar to Scratch and the StarLogo TNG user interface, which allows users to drag-and-drop visual objects to create an application that can run on Android devices. In creating App Inventor, Google drew upon significant prior research in educational computing, as well as work done within Google on online development environments.
This step-by-step guide walks you through setting up App Inventor, explores the development environment and gets your app running on any Android device. This is the first of a series of posts introducing key App Inventor features.

Thursday, 29 May 2014

Finding the perfect workspace

When you are self-employed, where you choose to work is very important. Social engagement relieves some of the stresses of work, networking can open unexpected doors. I have tried working at home and hot desking in London's Silicon Roundabout. Since moving in to Iliffe Yard, South London I really feel I've found my perfect workspace.
Pullens Yards Open Studios