I will quote a lot of times from this official document, see the full document here: https://developer.android.com/develop/connectivity/nfc/hce This app explains how ...

It reads the EMU CAN Stream and decodes it into something useful. This works with any CAN enabled device, MCP2515, Teensy, ESP32, STM32, Arduino UNO R4 and more. In the EMU Black, set the CAN-Bus ...