Thermal Printer driver for CUPS, Linux, and Raspberry Pi: zj-58
This might be my last post on mini-printers, as I’ve found a driver that just works with CUPS on Raspberry Pi. It also works on Ubuntu on my laptop, and should work (though untried) on Mac OS. You’ll...
View ArticleWorking with case-sensitive CD-ROM images on Linux
I bought a CD-ROM, The World of Patterns. It’s supposed to work on ‘Any computer with an Internet browser and a CD-ROM drive’. Guess I don’t just have any computer, then … The disk — an interesting...
View Articlemicro, a nice little text editor
micro – https://github.com/zyedidia/micro – is a terminal-based text editor. Unlike vi, emacs and nano, it has sensible default command keys: Ctrl+S saves, Ctrl+Q quits, Ctrl+X/C/V cuts/copies/pastes,...
View Articlemaking an hourly chime with cron
I wanted to have a “Hey, be here now!” ping throughout the working day. Something loud enough to hear, but not irritating. Doing this with cron was harder than you might expect. It seems that sound is...
View ArticleSynthesizing simple chords with sox
SoX can do almost anything with audio files — including synthesize audio from scratch. Unfortunately, SoX’s syntax is more than a bit hard to follow, and the manual page isn’t the most clear. But there...
View ArticlePossibly Painless Network Printing from your Raspberry Pi
Printing from computers goes through waves of being difficult to being easy, then back to difficult again. This is likely due to the cycles of technology, complexity and user demand flow in and out of...
View ArticleAdding the date to Sony Mavica FD-91 images
20 years ago, this was one state-of-the-art brick: The only way to get pictures from it is via the floppy disk drive on the side. Then you’ve got a bunch of images with 8.3 filenames and the only...
View Articlecp2up.sh — fits the important part of Canada Post print labels two per sheet
If you need to ship things, you’re probably not too keen on queuing at the post office right now. Canada Post’s Ship Online service is pretty handy if you have a printer. The PDFs it produces are okay...
View ArticleAn hour of Pink Noise
Direct download: 01-pink_noise.mp3 There are a million variations on the simple “use sox to play masking pink noise“, such as: play -n synth pinknoise gain -3 This will play synthesized pink noise...
View Articleniche 68K Mac emulation needs
So I’m refurbishing the Mac Classic II I got in 2016 now that I’ve found that BlueSCSI is a fairly cheap way of providing large replacement storage. The 40 MB (yes, 40 MB) drive from 1992 can finally...
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