1. Type-C female socket: connected to the computer through a USB cable
2. BOOT startup: After short circuiting and inserting TYPE-C, it will enter BOOT mode and the firmware can be re burned
3. Terminal resistor option: Insert jumper cap to indicate the connection of a 120 ohm terminal resistor
4. Output interface: CAN-H and CAN-L can be connected to the CAN bus GND or not
5. Insert the computer and the three color lights on the board will light up. Serial devices will appear in the device manager.