Today has been a non-hardware day, estimating the energy usage of the display under the various algorithms. I simply wrote a program to run the math, and found that my answers from yesterday were correct enough to be going on …

Sometimes you sit down to work and realize that you should have stopped earlier the previous day. This was an example of one such day. I didn’t really notice it until I looked at the pulse trains in the images I published, but the …

Display power consumption is going to be a problem for the LetterBox. Today’s project is to tinker with one of my newly-acquired displays and see what exactly I can get away with in terms of consumption. This will inform the rest …

Shortly after I revamped the site, I realized that I had a problem. There’s a nice feedback mechanism, but no way to tell if anyone uses it unless I go and look. It’s far too easy to miss incoming feedback. Sure, I could just make …

If you prowl web sites that discuss embedded hardware and operating systems, you will occasionally find people complaining that Linux is not a “real-time operating system”. What do they mean by that? Why is it important? Why do we …

I just can’t resist tinkering. I’ve pushed out a change that does the following: Kills off an infinite loop bug that occurred if RabbitMQ lost the connection. Enables scrolling long messages.

I’ve long held a certain fascination with old-technology displays. There’s just something special about them. Notable on the list is the 14-segment alphanumeric variety. These displays are very similar to the ubiquitous 7-segment …

So many people on the internet seem to have unlimited time on their hands to accompany their unending abilities. They get involved in all sorts of projects, all of which seem to succeed – or at least make a splash.

My Terraforming efforts continue in my homelab, but Terraform alone isn’t enough. Some of my services require ongoing management, and I want to capture that configuration as code to make it reproducible when needed. Puppet is …

As a member of the unemployed set, I have a fair bit of time on my hands. For a while I was doing little else than sitting around and reading; burnout is a horrible thing.

Earlier today I was working on a new post – and yes, I’m actually writing new content, and not just about Hugo! But that’s not the point. The point is, I came across an annoyance, and managed to also find a …

When we think of a blog, we typically think of the content – but in practice, we also have to worry about the taxonomies. Tags and Categories, oh my! These are hard enough to manage with a live system like WordPress; how do we do …