Item Type: USB to TTL Serial Converter Module <br>Baud Rate: 300bps - 1Mbps <br>Communication Format Support: a) 5,6,7,8 bit data bit; b) Support 1,1.5,2 stop bit; c) odd,even,mark,space,none check <br>Supported Operating System: For Windows Vista/XP/Server 2003/200, for Mac OS-X/OS-9, for Linux <br>Pin Description: <br>G - Grounrd Wire (GND) connect GND of STC singlechip <br>O: Power Supply (OUT VCC) connect VCC of STC singlechip <br>R: Reception (RXD) connect P3.1 of STC singlechip <br>T: Transmission (TXD) connect P3.0 of STC singlechip<br>1、Generate virtual serial port after the driver is installed. <br>2、USB power supply, the output interfaces include 3.3V (&lt;40mA), 5V, GND, TX, RX. <br>3、Signal pin level is 3.3V, positive logic. <br>4、On?board status indicator and the transceiver indicator will stay on after the correct installation of the drive, the transceiver indicator will flash when communicating. The higher the baud rate, the lower the brightness. <br>5、USB male connector can be directly connected to the USB port on the computer.<div>1 x Module</div><div>1 x 5Pin Jumper Wire</div>