Third party cookies may be stored when visiting this site. Please see the cookie information.

Home Family Days Out Raspberry Pi & Electronics Blog

Stewart's Blog

Stewart Watkiss website to the world ...

(Children, computing, first aid and other ramblings ...)

Archive for the 'Electronics' Category

Home automation light bulbs from Sengled

Wednesday, April 3rd, 2019

I have created some DIY home automation in the past. This was based around using remote control of mains electrical sockets (Home automation – controlling Energenie power sockets using a Raspberry Pi) but I also used a home automation light on one of my home lights. Since then the number of commercial home automation devices […]

Raspberry Pi Christmas Project – Christmas House and Neopixel Snowman

Monday, December 17th, 2018

This year I’ve been creating a 3D model of a building for an outdoor model railway. Technically it’s a building for a weigh bridge rather than a house, but I’ve given it a Santa’s Grotto make-over for Christmas and so Christmas House sounds better. The building is designed in TinkerCAD based on a real building […]

The rules for building a model railway

Sunday, November 25th, 2018

There are many different misconceptions about creating model railways and the people that are involved. I’d therefore like to start by dispelling some of these myths and explaining what I think that model railways is about. The 3 Golden Rules of Model Railways Many people have come up with different rules for model railways, here’s […]

Raspberry Pi or Arduino NeoPixels (Smart RGB LEDs with ws281x) – including Raspberry Pi 2

Tuesday, August 28th, 2018

I’ve recently been having fun with some NeoPixels on the Raspberry Pi. NeoPixel is the name that Adafruit uses to refer to “Smart RGB LEDs with WS2811 / WS2812 integrated controllers”. I’m sure you’ll agree that NeoPixel has a better ring to it and as that’s the name of the Python library that I’m using. […]

Raspberry Pi 6th Birthday – Birmingham Raspberry Jam 2018

Saturday, March 3rd, 2018

Today is the weekend of the Raspberry Pi 6th Birthday. In the past the birthday has been celebrated with a large Raspberry Jam in Cambridge (organized by Mike Horne and Tim Richardson). I have been to the earlier birthday celebrations, supporting workshops run by others, giving presentations and running workshops. For 2018 the birthday celebrations […]

Review of MeArmPi robot arm for Raspberry Pi

Thursday, November 30th, 2017

I backed the MeArm Pi kickstarter project earlier this year, and just received the finished product. It’s a, laser cut, plastic robot arm which has a built-in Raspberry Pi. It is created by Mime Industries who have previously created a similar robot arm without the build-in controller / Raspberry Pi. It can be controlled using […]

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 […]

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 […]


UK days out, children and holiday information is also available on the Days Out Diary web site
Linux, LPI and the Quiz / Test Program posts are also available on the Penguin Tutor website
First Aid Information, first aid games and first aid practice test / quiz entries are also available on the First Aid Quiz Web site