On the Raspberry Pi that I’m using to control my DottyMatrix serial-to-parallel Centronics printer interface there are two main software components – a web-based PHP/JavaScript front-end UI and a back-end server programmed in Python. So these need to talk to each other. Here’s the overall architecture of the solution: The matrixSvr.py program is intended to run permanently on the RPi… Read more »
There is a world that most people know nothing about. It is home to a motley assortment of obsessives. Welcome to the dark and sometimes noisy domain of mechanical keyboard enthusiasts. I had no idea this subculture existed until my painfully progressing arthritis spurred me to seek out alternatives to the standard Apple keyboard that came with my iMac. More than… Read more »
So I wrote this Python program to allow me to carry out certain kinds of calculations on binary numbers — you know, AND, OR, XOR and that kind of thing. It’s an absolutely essential tool for anyone who, you know, needs to NAND two 12-bit binary numbers. And happens to own a PiDP PDP-8 replica. Okay, so that’s a very… Read more »
Keyboards are very person things. What suits one person won’t suit another. And I’m very, very picky. After 35 years of using computers, I know what I like, and what I like is what I’m typing on right now. I’ve always been a fan of keyboards with a positive click. The classic IBM keyboard with a buckling spring was my idea… Read more »