Multi Functional USB Control Terminal SHTUSB-ULT

Universal product, multifunctional USB integrated terminal. Onboard a 4-port USB HUB chip, used to expand one USB port into four ports. Port 1 is converted into a TTL serial port/RS232 DB9 port through a serial chip. Port 2 is connected to a DAP-LINK debugger. Port 3 and Port 4 are led out through a USB socket. The DAP-LINK download interface is led out through a 2.54MM pin header, and the virtual serial port is converted into an RS232-DB9 port through a level conversion chip. Onboard a level conversion chip that supports external power input. When there is an external power source, turn off the USB bus power to prevent reverse flow of the external power source and damage to the host end.