Abstract A backpack for commonly available RGB video panels, allowing longer/simpler cable runs and local refresh. What it does I’d like to use a single-duplex RS485 data pair with possibly a separate pair to enable auto-addressing or to enable higher… Continue Reading
Abstract An old Systron-Donner counter with nixie tube indicators repurposed as an internet-connected clock. What it’s made of Systron-Donner model 1038 counter ESP32 development board Software written in C Custom PCB designed in EAGLE High voltage nixie tube power supply… Continue Reading
First I need to find a better name, something with the Persian word برق (Baruq) in it. How about the Arabic البرق الشيشة (albarq alshayisha, “lightning hookah”)? Apparently Googer Translate can’t speak Persian aloud. Why? TL;DR: Because. Have you ever seen… Continue Reading
So I found a 9-track reel-to-reel tape drive on eBay that looked like it was in working and beautiful condition. It’s a Kennedy 9800 with the reels arranged horizontally so it doesn’t take up half an equipment rack. I’d like… Continue Reading
I ran a bunch of speaker and signal cable along my wall because I relocated my audio receiver to an equipment rack. Plastic wire conduit is hideous and too small/large. Wire staples/clips are too small. Infinitely adjustable, mounted zip ties… Continue Reading
What it is KnobSwitch is a minimal entertainment center controller. One big-ass knob for volume control and one selector switch for input source. What it does Gives you instant, simple selection of your input source and volume control. Communicates to… Continue Reading
I had a lot of high-spec plywood left over from my foolhardy attempt at mounting the TV with it. I also needed to raise my speakers off the floor. So I took some cinderblocks and some of that wood to… Continue Reading
Abstract I live in an old building with brand-new looking drywall. Studs were not all on 16″ centers. My low-profile mount could only span 16″centers. Went through the trouble to make a spanning board. turns out the drywall was not… Continue Reading
Our parents’ first mobile phone, probably. Background These phones are cheap on eBay and elsewhere, and so are simple GSM/Bluetooth radio modules. What it does Makes and receives calls either by itself or as a Bluetooth extension to your existing… Continue Reading
A computer-controlled ferrofluid display. Background Ferrofluid looks cool, so why not play with it in 3D space? What it does The ferrofluid blob is suspended in 3D space however you want. You can stretch it, break it, move it, spin… Continue Reading