https://github.com/edub0/rcp_esp32_ble_racechrono
I needed a way to hookup my tirex sensors to RCP and this board from autosport labs seemed like a flexible option to build on.
The project is done with esp-idf so I included a binary and instructions which should work for the arduino crowd.
You will have to wire up your ASL board yourself. I smoked one when I read the pinouts wrong. But if you have the tirex sensors wired to chassis 12v and NOT the ESP32 12v you'll get further than I did.