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Stewart's Blog

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Archive for the 'Computers' Category

Learn Electronics with Raspberry Pi – on Humble Bundle

Tuesday, August 22nd, 2017

My book “Learn Electronics with Raspberry Pi” is included in the Lego Mindstorms and Robotics book bundle on Humble Bundle. Through this you can get over $500 worth of ebooks for a fraction of their normal price, with a portion of the money going towards the charity AbleGamers Foundation. As with all the Humble Bundles […]

Raspberry Pi with Google AIY – voice recognition

Monday, May 8th, 2017

Google and MagPi (the official Raspberry Pi magazine) have released a project in the magazine using the Google API engine. This is known as AIY and was released with issue 57 of the magazine. The finished project is a cardboard box with a button switch on top. It includes a audio card and a microphone, […]

Networking challenge quiz for school IT and computing fair

Thursday, February 2nd, 2017

In the UK, Year 9 (age 13 to 14) is an important stage which can influence the student’s future career. It is during this year that the students first decide on what subjects to pursue, and in particular whether they will continue to study computer science. I recently attended a computing and IT careers fair […]

Getting started with 3D printing using Linux

Sunday, January 15th, 2017

I have now got a 3D printer. I haven’t done much with it yet and it’s a steep learning curve but I’m looking forward to getting into 3D printing. Choosing a 3D printer The first decision was which 3D printer to buy. There are a lot of different choices starting from little over £100 and […]

Element 14 BOO! Pi Costume Contest

Wednesday, November 9th, 2016

Around Halloween 2016 Element 14 ran a Costume Competition for wearable tech projects. Boo! Pi Costume Contest I was already working on a Wizard of Oz costume so I submitted my project to the competition. You can find out more about the Raspberry Pi – PiZero NeoPixel bow tie here. My costume was one of […]

Wizard of Oz Costume – Wearable electronics with Raspberry Pi, Pi Zero

Wednesday, October 26th, 2016

I decided to create a Wizard of Oz costume for Halloween this year. As you probably know The Wizard of Oz wasn’t really a wizard at all. He used a mechanical machine to convince the citizens of Oz about his magical abilities. What you may not know is that he was more than just a […]

Electronics and Raspberry Pi Halloween Projects

Sunday, October 23rd, 2016

These are some of the Halloween Projects I’ve created. Haunted House A scary haunted house, using a Raspberry Pi, home automation, electronics and scary music. Raspberry Pi Haunted House Raspberry Pi MotionSensor Jack-O-Lantern Pumpkin My son’s Motion Sensor based Light Up Pumpkin project Halloween Motion Sensor Pumpkin Wizard of Oz Costume A Wizard of Oz […]

Raspberry Pi Motion Triggered Halloween Pumpkin Jack-O’-Lantern

Sunday, October 23rd, 2016

My 8 year old son has now completed another Raspberry Pi project. This project is a Halloween Pumpkin, or jack-o’-lantern, which is triggered whenever someone comes near. It uses a PIR motion sensor to detect someone entering the room and then lights up a sequence of NeoPixels. In this case these are static green and […]

Restore dual boot with Ubuntu when Windows 10 update overrides the UEFI settings

Monday, October 10th, 2016

As a Linux user it’s now very rare that I run Windows on my home computer, but when I do it’s usually because of something important. At the moment it’s because I’m taking some exams on my MSc course and the remote proctoring software only supports Windows and Mac. It’s therefore rather important that my […]

PyconUK 2016 – Sending secret messages with a micro:bit

Monday, October 3rd, 2016

Another year and another Pycon UK. For 2016 the UK’s community Python Conference was held in Cardiff, Wales. It’s also the fourth year that they’ve included a special Children’s day on the Saturday. This included a day of kids coding on Raspberry Pi computers (Pi-Top CEED) and this year each child received a micro:bit to […]


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