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Stewart's Blog

Stewart Watkiss website to the world ...

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

Archive for the 'Computers' Category

Upgrade to Ubuntu 22.04 – DisplayLink – Firefox with SNAP – performance issues?

Sunday, May 1st, 2022

This video provides an introduction to Ubuntu 22.04 Jammy Jellyfish. It has some information about the upgrade process, some fixes that I needed to apply (including Re-installing Display Link drivers) and some of the new features. I have switched back to X.org instead of Wayland so that I can continue to use Simple Screen Recorder […]

Protect your password from hackers

Friday, April 29th, 2022

The password is often the key component keeping a system secure. Users are often told that you need to follow certain rules when creating their passwords which may include using capital letters, numerical digits and sometimes special characters. Rules normally also set a minimum number of characters, which may be as low as 6 (not […]

Pixel Server – updated for new Raspberry Pi OS default username removal

Sunday, April 17th, 2022

As the Raspberry Pi OS no longer uses the default pi username I’ve had to make some changes to some of my software so that it still works correctly. This video goes through the changes I have made to my Raspberry Pi Pixel Server software so that it works without the default username of pi. […]

Penguin Fortress – guide to the Raspberry Pi OS username change

Friday, April 15th, 2022

I’ve created a new YouTube channel called Penguin Fortress. This is created as an spin-off of my Penguin Tutor channel which will concentrate on IT security / cyber security. The first video is on the recent Raspberry Pi OS change which means that Raspberry Pi OS no longer requires the default pi username. The reason […]

Review of the Pokit pro – smart phone multimeter, oscilloscope and data logger.

Thursday, March 3rd, 2022

The pokit pro is a nall-in-one multimeter, oscilloscope and data logger. It is a probe which connects to a mobile phone using bluetooth. So no need for bulky screens or to carry a laptop around with you. This was a Kickstarter from 2019. Originally due to be delivered in 2020 these are a little under […]

A 10 year adventure with Raspberry Pi

Sunday, February 27th, 2022

The Raspberry Pi is now 10 years old. It has had a significant impact on my life, defining my hobbies, my study and opening up new volunteering opportunities. I’ve created the video below showing a quick look at the Getting Started with Raspberry Pi Pirate Chest Raspberry Pi case PA Consulting Raspberry Pi Competition Raspberry […]

Raspberry Pi OS 64-bit – new official release of the RPi OS with Netflix and Disney+

Sunday, February 6th, 2022

The Raspberry Pi OS (formally Raspbian) has traditionally been 32-bit. The 64-bit version has been in beta for a year now, but has become and official release. In this video I take a look at Raspberry Pi OS 64-bit official release and how it compares with the 32-bit version. The 64 bit version of the […]

Radio Control for the Raspberry Pi Pico – using I-Bus

Saturday, January 8th, 2022

The Raspberry Pi Pico does not come with any kind of wireless build-in, but that doesn’t mean you can’t control it without wires. You can easily add a Radio Control controller such as ones used to control RC model Airplanes. In an earlier video I explained about how you could interface with a receiver using […]

Stewart Watkiss (PenguinTutor) in The MagPi Magazine

Saturday, January 1st, 2022

The January 2022 edition of the MagPi Magazine has an article on me and some of my projects. If you missed the printed version then you can still download the magazine free of charge from the MagPi website (113)

From 2D maps to 3D models with FreeCAD

Sunday, November 28th, 2021

In the video below I show how you can take a 2D map and create a 3D model using FreeCAD. This is a manual process in mapping the contour lines from an OS map into FreeCAD. The model can then be printed using a 3D printer, or viewed online as a static image or through […]


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