Technical parameters
USB serial adapter port CP2102
LED green light: status indicator (interworking status indication),LED red light: communication status indication, data light flashing
Set the interworking mode with one key: press the key once to switch the interworking path once.4 LEDs are green, the corresponding lights are on, indicating that the corresponding paths are interoperable.
Supports WINDOWS 98/ME/2000/XP/Win7/Win8 /Win10 32-bit/64-bit systems
Support USB serial port TTL,USB to RS232 serial port, USB to RS485 serial port.
Support dual-channel serial port test voltage function (range: 0~30V)
System parameter settings are not lost when power is lost,. After power on, the serial adapter will keep the last state, after pressing the key, power on again and the channel continues front interworking mode.

USB serial adapter port and TTL serial adapter port:
In essence, they are all serial ports. USB is a chip with USB to serial port TTL, and the interface form is in the computer. identified on is COM equipment, TTL wireless serial port, serial port level is TTL, can be directly connected to microcontroller serial port