§§ Computer Arch. David A. Patterson and John L. Hennessy, Computer Organization and Design, (RISC_V Version). David A. Patterson and John L. Hennessy, Computer Architecture, A Quantitative Approach

After failing to convince the client otherwise On the side, I do a bit of pedalboard “making”. And yesterday I just finished the largest board I’ve ever made. But even though I failed to talk him out…

Auf den MRMCD 2026 hatte ich mich in einen Vortrag verirrt, in dem LoRa-Meshes vorgestellt wurden. Daraufhin bin ich mit sofortigem und uneingeschränktem Hyperfokus in Meshcore eingestiegen. Yay!

For a long time now I've been having issues with my Raspberry Pi randomly shutting down. I tried all different power adapters PPS non-PPS/Xiomi fast charge that doesnt adhere to any spec and…

Typing this in a cafe right at this very moment, so let’s jump right in: LUT aka Lappeenranta University of Technology (or perhaps it’s LUT University today) has come up with an…

Often in audio electronics, most relationships are non-linear. Both loudness and pitch are perceived by humans logarithmically. Audio-taper pots (the more common name for log-taper) are the most…

I was pleasantly surprised to find out today that The Dumble Preservation Society has created a set of A2 models of the MegaPLX 0006-03, available for purchase here. As I inidcated above, this is…

This beginner's guide is arguably one of the best because it comes from a beginner. I write as I go. I couldn't explain anything I'm a pro at better, because I've forgotten what's easy and what's…

I picked up the xteink X3 on a whim because it just sounded fun. It’s a tiny, inexpensive little reader based on an ESP32. It’s pretty much just the ESP, a battery, and an e-ink screen.…

Ham Radio DX | Amateur Radio How to Measure SWR with a NanoVNA: Step-by-Step Guide A NanoVNA is one of the most useful test instruments you can have in an amateur radio shack. One of its simplest—and…

I’ve been posting a little recently about my experiences coding for the Pimoroni Presto, a microcontroller-powered device with a 4” screen, at 480×480 pixels. That makes it a square.Square displays…

I just can't help myself, but to tinker with my PC build. It's been about a year since I last did so . I think the original expectations for the system are more or less the same. I still don't really…

A little while back, one of my housemates put a little novelty guitar-amp-in-a-cigarette-pack on my desk. He was doing a bit of a spring clean, and thought I might find it interesting. I did! I was…

My opinion on how to choose a split mechanical keyboard.

The Ware for September 2026 is shown below. We seem to be on a theme of hybrid circuits! This aesthetically pleasing ware was submitted anonymously. Thank you, you know who you are! While I realize…

The Ware for August 2026 is the “IC unit” from a Lafayette 150-in-1 “IC Electronic Project Kit”, part number 99-35107. Above is a contextual photo of how the unit looked…

My experience choosing the hardware and setting up a homelab on a mini PC, from selecting the hardware to configuring the software and services.

The UEFI Specification v2.11 is well over two thousand pages, and even the short list of “required elements” in §2.6 assumes a general-purpose computer: consoles, a configuration UI, standard buses,…

ARM Cortex-M CPUs ship with a set of on-chip trace peripherals that most developers never touch and most reverse engineers forget exist. In this post, we'll wire up an Xbox One controller, configure…

A module-by-module tour of the OOMWOO robot vacuum main board: compute, real-time control, power, fail-safe design, motors, sensors, audio and how we pick parts.

About 4 years ago I spent too much money on a PiBox from KubeSail so I could have a single enclosure with a Pi and an SSD. It didn’t really work out for me initially, but I’m happy to report I…