office clock part 3
Ten years later, the office clock gets a new brain: Raspberry Pi OS Trixie, libgpiod and the kernel SPI subsystem. Not one wire moved.
Ten years later, the office clock gets a new brain: Raspberry Pi OS Trixie, libgpiod and the kernel SPI subsystem. Not one wire moved.
The things that broke when I made a Raspberry Pi read-only, and why none of them were where the error message pointed.
The office clock kept falling off the network. Five theories died before I built something that could actually see the failure, and the thing that finally found it was a median.