Control a Macintosh Classic CRT with a BeagleBone Black – Part 1 – nerdhut
https://nerdhut.de/2016/06/26/macintosh-classic-crt-1/This article will explain how the timing of the Macintosh Classic CRT works and how I tried (and failed) to interface it with the Raspberry Pi, and how I interfaced it with the BeagleBone Black's PRU.