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2022

Getting reasonably robust proximity measurements from an ultrasonic sensor on the Raspberry Pioriginal ↗
15 Sept 2022
Using a shift register to control eight digital outputs with three GPIO lines on the Raspberry Pioriginal ↗
15 Sept 2022
How flat-earthers use misrepresentations of scale to promote their ideasoriginal ↗
15 Sept 2022
Why "RMS watts" is a useless measure of poweroriginal ↗
14 Sept 2022
Calculus of variations: a lunchbreak guideoriginal ↗
8 Sept 2022
Sorting files and directories on a FAT-formatted USB memory stickoriginal ↗
1 Sept 2022
A review of the Leak Stereo 130 and CDToriginal ↗
31 Aug 2022
Why is there a vinyl revival?original ↗
18 Aug 2022
Does it matter how we rip audio CDs?original ↗
18 Aug 2022
Is "high resolution" audio really worth the effort?original ↗
18 Aug 2022
Why you can't improve your hi-fi system by upgrading the mains cableoriginal ↗
18 Aug 2022
Do different CD transports sound different?original ↗
18 Aug 2022
Snake oil: balanced headphonesoriginal ↗
18 Aug 2022
Why your vintage turntable could kill youoriginal ↗
18 Aug 2022
A skeptic's guide to headphonesoriginal ↗
18 Aug 2022
Are Flatpak, et al., saving or drowning the Linux desktop?original ↗
6 Aug 2022
Command-line hacking: timezone conversionsoriginal ↗
4 Aug 2022
Command-line hacking: displaying a weather summaryoriginal ↗
4 Aug 2022
Command-line hacking: creating a tide tableoriginal ↗
4 Aug 2022
Command-line hacking: extracting audio metadata (tags)original ↗
4 Aug 2022
Command-line hacking: querying an Internet radio databaseoriginal ↗
4 Aug 2022
Command-line hacking: paced breathingoriginal ↗
4 Aug 2022
Command-line hacking: displaying news headlines in the manual vieweroriginal ↗
4 Aug 2022
Command-line hacking: Assigning folder icons to directoriesoriginal ↗
4 Aug 2022
How Microsoft Windows killed the palmtop computeroriginal ↗
15 Jul 2022
Using Podman to deploy an image directly to OpenShift 4original ↗
13 Jul 2022
Understanding Java's functional interfacesoriginal ↗
11 Jul 2022
Using the new pluggable active/passive management framework in Apache Artemisoriginal ↗
30 Jun 2022
Embedding resources into executables built using GCCoriginal ↗
24 Jun 2022
You be the linker -- building "Hello, world" from scratch, in hexadecimaloriginal ↗
23 Jun 2022
They don't make 'em like that any more: the Lenovo W520original ↗
1 Jun 2022
How problematic is resampling audio from 44.1 to 48 kHz?original ↗
10 May 2022
Using the Qpid Proton C++ library to create a server for monitoring or telemetry dataoriginal ↗
3 May 2022
Why we only see one side of the moon -- the odd phenomenon of tidal lockingoriginal ↗
21 Apr 2022
Why the energy cost or benefit of switching to DAB digital radio is hard to assessoriginal ↗
1 Apr 2022
Why I won't be dumping DuckDuckGo over Ukraineoriginal ↗
16 Mar 2022
cwordle -- A Wordle-like word-guessing game for CP/Moriginal ↗
18 Feb 2022
The peculiar Benford distributionoriginal ↗
11 Feb 2022
UTF-8 and the problem of over-long charactersoriginal ↗
3 Feb 2022
Juice-jacking -- it's a problem, but not because it's a problemoriginal ↗
3 Feb 2022
How Unicode reading direction characters defeat source code inspection, and what it means for the open-source movementoriginal ↗
3 Feb 2022
Multi-source Z80 assembly programming for CP/Moriginal ↗
30 Jan 2022
Writing new interactive fiction games for CP/M using PunyInform and Linuxoriginal ↗
24 Jan 2022
Converting a floating-point number to a fraction (approximately) using continued fraction expansionoriginal ↗
15 Jan 2022

2021

Raspberry Pi as a networked storage (NAS) deviceoriginal ↗
13 Dec 2021
Making a Raspberry Pi bootable SD card from a root filesystemoriginal ↗
3 Dec 2021
Does it matter if amateur radio dies out?original ↗
30 Nov 2021
Why the Linux console is so awesomeoriginal ↗
30 Nov 2021
Making an 8x32 LED auxiliary display with a USB interface, from an LED matrix and a Raspberry Pi picooriginal ↗
23 Nov 2021
A very brief overview of Kotlin for Java developersoriginal ↗
12 Nov 2021
An overview of finite fieldsoriginal ↗
10 Nov 2021
Homeopathy: flushing science down the lavatoryoriginal ↗
9 Nov 2021
Samsung DeX -- the good, the bad, and the uglyoriginal ↗
6 Nov 2021
Implementing a web-based music player for Androidoriginal ↗
22 Oct 2021
Conway's Game of Life in 3D perspectiveoriginal ↗
21 Oct 2021
Using Apache Avro for passing Java objects through a message brokeroriginal ↗
23 Sept 2021
How does Camel-K actually work?original ↗
15 Sept 2021
Rolling your own minimal embedded Linux for the Raspberry Pioriginal ↗
1 Sept 2021
Audible's returns policy -- who wins, who loses?original ↗
13 Aug 2021
"Spy pixels" -- how worried should we be?original ↗
13 Aug 2021
Implementing Apache ActiveMQ-style broker meshes with Apache Artemisoriginal ↗
30 Jun 2021
Deploying the Mosquitto MQTT message broker on OpenShift (part 1)original ↗
30 Jun 2021
Back to BASICs with a Pro Micro microcontrolleroriginal ↗
22 Jun 2021
Playing Zork 1 on a CP/M emulator on Linuxoriginal ↗
22 Jun 2021
Using a Pi Zero and throw-away parts to provide a serial terminal for retrocomputing projectsoriginal ↗
17 Jun 2021
Deploying the Mosquitto MQTT message broker on OpenShift (part 2)original ↗
10 Jun 2021
Capturing database change records using Debezium and Cameloriginal ↗
10 Jun 2021
Using Apache Avro for passing Java objects through a message broker, with a schema registryoriginal ↗
10 Jun 2021
Developing KCalc-CPM -- a scientific calculator utility for CP/Moriginal ↗
22 May 2021
CP/M forty years on -- what it was, and why it still mattersoriginal ↗
16 May 2021
Running CP/M on the Raspberry Pi Pico microcontrolleroriginal ↗
5 May 2021
Why you can sometimes connect 3.3V and 5V I2C devices (and probably shouldn't)original ↗
5 May 2021
Controlling a chain of MAX7219 LED matrices using C on a Raspberry Pi Picooriginal ↗
5 May 2021
Building and programming a USB auxiliary display using a SparkFun Pro Micro, an HD44780 LCD module, and an PCF8547 I2C-to-parallel ICoriginal ↗
19 Apr 2021
The tabular method for integration by partsoriginal ↗
13 Apr 2021
Integrating factors from the ground uporiginal ↗
13 Apr 2021
Using an I2C analog-to-digital for temperature measurement on the Raspberry Pioriginal ↗
13 Apr 2021
On master/slaveoriginal ↗
18 Mar 2021
More like Windows every dayoriginal ↗
17 Feb 2021
The planet Vulcan: a cautionary tale that deserves to be better knownoriginal ↗
14 Feb 2021
Building a custom mechanical keyboard from scratchoriginal ↗
14 Feb 2021
Reviving old keyboards for Arduinooriginal ↗
13 Feb 2021
Why the fascination with retrocomputing?original ↗
3 Feb 2021
Peli "Protector" case as a rugged enclosure for a Raspberry Pi-based field terminaloriginal ↗
21 Jan 2021
Building and programming a USB keypad from the ground uporiginal ↗
19 Jan 2021
Using Linux command-line tools for programming the SparkFun Pro Micro microcontroller (and similar)original ↗
19 Jan 2021
A Raspberry Pi and touchscreen case that anybody can makeoriginal ↗
11 Jan 2021

2020

Rolling your own minimal embedded Linux for the Raspberry Pi -- part four: audiooriginal ↗
1 Dec 2020
Rolling your own minimal embedded Linux for the Raspberry Pi -- part three: services and remote accessoriginal ↗
1 Dec 2020
Rolling your own minimal embedded Linux for the Raspberry Pi -- part two: early initializationoriginal ↗
1 Dec 2020
Rolling your own minimal embedded Linux for the Raspberry Pi -- part five: Xoriginal ↗
1 Dec 2020
Switching a couple of amps with a Raspberry Pi and a relayoriginal ↗
1 Dec 2020
Using an I2C analog-to-digital converter chip with the Raspberry Pi, from the ground uporiginal ↗
30 Nov 2020
Using the FreeType library to render text nicely onto a Linux framebufferoriginal ↗
20 Nov 2020
Examining simple build and deployment operations on OpenShift 3/4original ↗
13 Nov 2020
Why pitch is not the same as frequencyoriginal ↗
10 Nov 2020
Why you can't rely on system calls to obtain limits, when running an application in a containeroriginal ↗
12 Oct 2020
Container from scratch: building a Linux container from the ground uporiginal ↗
12 Oct 2020
The importance of enabling compiler warnings in C and C++ programmingoriginal ↗
2 Oct 2020
Why is covid-19 testing so unreliable? A pictorial vieworiginal ↗
26 Sept 2020
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