[Interface]：USB

[Size]：115.0*60.0mm

[Introduction]：It is used to test and develop Chengdu Ebyte RD400D wireless transmission module. RD400D-TB contains RD400D module. For detailed use, refer to the RD400D module user manual; all IOs of the RD400D wireless data transmission module have been exported; with CH340X USB to serial port chip, you can use USB Interface for serial communication development; with WS3232 RS232 to serial chip, you can use RS232 interface for serial communication development; users need to connect external DC power supply and serial port for secondary development; work stable and easy to develop.