Process automation: relays and triacs

In my previous article I discussed how I intended to convert an old PC into a controller that I could use to automate the temperature control required to ferment and conditional beer. If you haven’t already read that introduction then I’d encourage you to do that so you know what...

Process automation: building a process controller

Not a lot of people know this, but I brew my own beer as a hobby; and I’m not talking about the murky coloured astringent tasting dodgy brews of yesteryear. The beer I brew is probably best described as craft ale. I do the whole process, much like a brewery would. I design recipes, crush...

Filtering the 5V USB power supply line Jul24

Filtering the 5V USB power supply line

I’m currently working on a new project that contains sensitive analogue components and have rediscovered what many before me already know, that is that the VUSB 5V line that comes out from your computer’s USB hub is noisy. In fact I was surprised at just how noisy it is....

Hacking the HP Z800 Xeon motherboard into a standard case Nov01

Hacking the HP Z800 Xeon motherboard into a standard case

About four years ago now the company I work for were investing in some new servers for a project that we were working on and what turned up were quad LGA1366 socket Xeons with support for up to 192Gb of memory. In most cases two sockets were populated with Intel Xeon X5670 CPUs, hex core...