Author: danny

These are the projects I’m working on. All are open source, most code etc. is at https://github.com/danja. My Home Page is at http://hyperdata.it. This doc is a work in progress. HKMS – Hyperdata Knowledge Management System Chatterbox About Hyperdata Knowledge Management System Status : subsystems in different stages HKMS is the umbrella name I’m using for a variety of applications...

My main reason for Chatterbox was to have something with a well-defined target that I could focus on for a few weeks and get my head away from all the open-ended projects I was being overwhelmed by. About a year on I realise it wasn’t the best choice. Making noises with microcontrollers turns out to also be open-ended. But I...

I’ve recently had three funny near-coincidences. Not the oh wow! kind for anyone but me. Fun though. First, the other day, I was feeling bad for Marinella. She’s a medic, has been deep in the Covid thing, testing folks up in the hills. Had ordered a ultrasound scanner for her own use, but was getting a bit frustrated by it’s...

A Friend on Facebook, Kicki, just made my mind buzz. Her post started “Is it possible to 3D print a Menger sponge, M >= 3, and if so, would anyone with a 3D printer make me one?“. (My italics, hee hee, right approach). I don’t have a 3D printer, but my response would be, well yeah, probably quite easily. But...

Breadboards are a wonderful aid to electronic prototyping. They are small plastic blocks with lots of electrical sockets that will accommodate components or wires. Typically you have 2 horizontal rows of sockets in the middle which are lined up to take standard chips with 0.1″ leg spacing and vertical rows at either side, typically used for power rails. The name...

I do watch some mad things on YouTube, in the sense of beyond my comprehension, not necessarily beyond rational thought. Below. A gem yesterday. Anton Petrov does really good astro things. This one caught me because I’m a little fascinated by chaos. The solar system (gods forgive me if I get this wrong) is a massive object with lots of...

There’s a feeble double meaning in the title. This is about what I have in mind for some experiments with ultrasound, but also I’m doing a brain dump to get this out of my head so I can actually get on with things. I apologise for any technical inaccuracies here, I’m still learning this stuff. Before you find fault, I...

I have lots of projects on the go at any given time. Most of these have corresponding GitHub repositories. Even though usually I’m the only person working on them, Git is great for version control and GitHub offers very convenient offsite backup and world-facing presence for the material (were I starting from today, GitHub might not be my first choice,...