It is a TTL_UART to LIN bus module.The module uses TJA1021 IC.It is mainly used for communication monitoring and maintenance of LIN bus equipment.
The measured baud rate of the module can reach 57600bps,and the recommended maximum operating frequency is less than 20Kbps.
Power supply anti-reverse connection protection, LIN bus anti-surge protection
Compatible with 3.3V/5V microcontroller system
When the module is connected to the computer's COM port,the computer can receive data,but it cannot communicate with your slave device as a host.The computer's com port cannot generate the 13-bit start bit in the LIN protocol,but it can be connected to a development board such as a microcontroller.