Driving a cheap 256 LED SMD matrix surface mount soldering practice kit from an arduino.
https://emalliab.wordpress.com/2026/02/16/256-led-smd-practice-board/
Music, software, electronics, maker, art, books, writing, kids. geek, dad, engineer, blogger, musician. I only follow what I think I can keep up with.
Music related making: @diyelectromusic
| Website | https://emalliab.wordpress.com/about |
| Pronouns | He/Him |

Driving a cheap 256 LED SMD matrix surface mount soldering practice kit from an arduino.
https://emalliab.wordpress.com/2026/02/16/256-led-smd-practice-board/
Testing a Cheap SMD Practice LED Matrix Kit

Mini LED Matrix Game of Life

Using a #OneROM as a 2732 EPROM replacement in an #Atari2600 cartridge.
https://emalliab.wordpress.com/2026/01/22/atari-2600-cartridge-emulation-part-4/
This is a great conversation.
And they mention the fabulous Library of Babel.
If you've not come across it before, look it up (and try the "online" version :))

Messing around with mini (20x20mm) LED matrix displays...
https://emalliab.wordpress.com/2026/01/18/mini-8x8-led-matrix/
Programming some custom ROMs for the Atari 2600.
https://emalliab.wordpress.com/2026/01/07/atari-2600-cartridge-emulation-part-3/
And now some notes about how I got that far and that show the 6502 actually running some(one else's) code.
https://emalliab.wordpress.com/2026/01/02/rp6502-the-picocomputer/