Archives
All the articles I've archived.
2026 1
November 1
Decoding a hot tub: the Jacuzzi "encrypted" RS485 protocol
The encryption on a Jacuzzi J235's control bus is one random byte and a fixed key stream. How I worked that out, with a decoder that runs in your browser.
2023 1
August 1
CAN Bus Hacking
Using an ESP32 on a BMW F30's CAN bus to make steering wheel controls work with an aftermarket head unit.