LayerOne 2017 CAN Bus Badge
STM32F4 badge for CAN bus and vehicle-hacking experiments
LayerOne 2017's electronic badge was a CAN-bus-focused STM32F4 conference badge with a TFT display, storage, USB device and host behavior, external CAN headers, audio output, rechargeable battery planning, PC-side CAN tooling, and J2534-adjacent software work.