Welcome to my site of mainly technical topics together with some rather eclectic subjects such as British Naval slang words and the lyrics to British National Airs!

Educated in Electronic Engineering and a Chartered Engineer, I specialise in power and micro-controller electronics and have a wide ranging knowledge of these topics together with radio communications. For those who know of him or have read his books, I was tutored in my subjects by Professor Douglas Lewin.

My ethos is to mentor, encourage and transfer as much of my knowledge to others as possible and to do this in the most easily understood way; particularly avoiding ‘knowledge is power’ techniques or obfuscation as used by many.

I have provided a collection of information to assist you in your learning and augment this with practical micro-controller projects using the Arduino, ESP8266 and ESP32 devices, most of my projects are documented here or with supporting YouTube videos.

Software for my projects can be found on the GitHub G6EJD repository, it is free to use, but must not be used commercially and you must acknowledge me as the author.

My experience covers the design of power electronic systems from high power inverters, through to 250KA (250,000A) battery discharge systems. I have designed micro-controller systems to control 4MW diesel-generator systems to maintain frequency and voltage. Latterly, I have specialised in computer system management and large scale MRP-II systems. My experience also includes finite-element analysis systems with a supporting expert system (AI) for decision support. As a senior engineer in the role of Group Leader, I use my wide portfolio of business and management skills to manage people and projects to achieve a successful outcome. 

I hold a Radio Amateur Licence for radio operating with the call-sign ‘G6EJD’ and have held this since 1981. I operate on the HF bands and occasionally VHF and UHF and I’m working towards the DX100 award requiring radio contact with 100 countries and so-far my country count is 93, so just 7 more to go!

These pages are provided by a Raspberry Pi 4 running the Apache web server.

All my work and YouTube videos are self-funded, so if I’ve helped you, please consider treating me to a cup of coffee at my favourite café via PayPal, this also helps me maintain my feed of YouTube Technical videos by purchasing equipment. You can make a donation by clicking on the icons here: