Retrofitting a Lenovo T520 with a Raspberry Pi CM4 – Part 1

I was looking around the storage rack in my main workshop, when I stumbled upon an old Lenovo laptop, specifically a T520 model. These are nicely made solid machines, rather hefty but nice to use. The keyboard and trackpoint are great, and the screen is OK as well. This got me thinking; I have two …

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Storage/Computer Rack

When working from a small space, its always a challenge to make best use of every inch of it. During lockdown in the middle of 2020, I decided to gut my whole workshop and store everything in my second shop. I took lots of measurements and started to sketch out ideas to best make use …

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DaveNAS / OpenMediaVault

I needed to replace my ageing NAS with something a little more modern and hackable. My old system was born out of need – I built something from parts I had lying around – an old laptop running NAS4FREE and a few external drives for data. I spent nothing but a little time. It was …

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So what is it? This project was born out of some sort of necessity, deep in me somewhere. I tried to get Project Omega (a configurable card-based electronics platform) off the ground, but the current open source compatible FPGAs were proving just too minimal to be sufficiently useful and I shelved the project until the …

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Quad-monitor floor stand

Desks are wasteful things – they collect junk and waste precious space with their fixed shape and hard-to-move bulkiness. Why not just hang some monitors on a stand, and get a nice comfortable chair? I’ll worry about the keyboard rest another day. I do a lot of CAD work as an electronics designer, and was …

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Dave Rowntree - A Lifelong Electronics Geek