This article describes the fundamentals of setting up the Apache Artemis message broker to use an Oracle database as the message data store.

AMQP is not a trivially-straightforward protocol to understand, but it's necessary to get to grips with it to write effective software that uses the Qpid Proton AMQP library. Perhaps one of the simplest ways to understand AMQP is to use Proton's own packet-tracing features, as this article explains.

Most image editing applications provide a 'saturation' adjustment; some provide adjustments of 'brilliance', 'chroma', and other things. This article explains what these terms actually mean.

Darktable isn't supposed to be an alternative to Adobe Lightroom, but many people hope to use it as one. After all, Darktable's (free) pricing is very appealing. Here are my views on whether a move to Darktable makes sense.

Mapping keyboard keys to key codes on Linux is well-documented for the graphical desktop. But what about console applications on embedded Linux systems? There's not much documentation in this area.

This article continues my original framebuffer "just the essentials" article, by describing how to handle less straightforward framebuffer configurations.

The absolute minimum information needed to start using the Linux framebuffer as a graphical display in C/C++ applications.

This article describes how to construct a desktop photo clock using a Raspberry Pi Pico and some solder-free peripherals.

The Maxim DS3231 I2C real-time clock is a reasonably accurate, inexpensive device, that is easy to interface to the Raspberry Pi Pico.

This article describes how to generate and use compressed, anti-aliased font data, for use in a microcontroller application.

I've been using the Raspberry Pi Pico for embedded projects for the last two years or so. What do I think of it now?

This is a versatile touchscreen display module with a strikingly low cost. But is it any good?