Specialized Turbo e-bikes in Home Assistant

I ride a Specialized Vado SL 4.0. It has a TCU (Turbo Connect Unit) that broadcasts telemetry over Bluetooth Low Energy — battery level, speed, motor power, cadence, temperature, the works. Specialized has their own Mission Control app for this, but I wanted the data in Home Assistant. So I built a custom integration. The protocol Specialized’s BLE protocol isn’t documented anywhere official. Fortunately, Sepp62 had already reverse-engineered it for an ESP32 project. The protocol is called “T...