https://wiki.wit-motion.com/english Three Functions USB-Serial Port Module SPECIFICATION Model ：USB-Serial Port Module Description ： USB-Serial Port Module USB-TTL USB-232 USB-485 Quality system standard: ISO9001:2016 Tilt switch production standard：GB/T191SJ 20873-2016 Criterion of detection：GB/T191SJ 20873-2016 Revision date：2019.12.17 Link to tutorial of 3-in-1 Converter :(driver, manual, etc.): https://drive.google.
https://wiki.wit-motion.com/english Catalog 1 Description....................................................................................................................................... 3 2 Pin Description.................................................................................................................................3 3 Method............................................................................................................................................. 5 3.
https://wiki.wit-motion.com/english 1 Description (1) Three functions, support USB-TTL USB-232 USB-485. (2) Compatible Windows Linux Wince operating system. (3) With a 500mA fuse protection circuit to prevent shorting and over current burning. (4) The indicator lights indicate the working status of the device in red, yellow and green. COM port selects USB (yellow light) is always on, data reception RX (red light) flashes, data transmission TX (green light) flashes.
https://wiki.wit-motion.com/english Name Function +5V Module power, 5V input, output 3V3 Module power, 3.3V output RX Serial data input, TTL level TX Serial data output, TTLlevel 232R Serial data input, 232 level 232T Serial data output, 232level A RS485 Signal line A B RS485 Signal line B GND GND DTR Data terminal preparation/control flow output RTS Request to send WhatsApp:+86 13652339539 E-mail：support@wit-motion.com Web：https://wiki.wit-motion.
https://wiki.wit-motion.com/english 3 Method 3.1 Install driver First, the module is connected via USB-TTL module to the computer, open the package of CH340 and install the module driver. Open CH341SER.exe, click INSTALL and then it will output a COM. CH340 drive: https://wiki.wit-motion.com/english/doku.php?id=communication_module WhatsApp:+86 13652339539 E-mail：support@wit-motion.com Web：https://wiki.wit-motion.
https://wiki.wit-motion.com/english 3.2 Check port number Right click my computer\management\Device manager\Port （ COM&LPT ） . You can see the generated port number, the port number is COM3. Change port number Sometimes we will insert multiple USB serial ports into the computer. Sometimes we want the serial port number to be assigned in the way we expected, so we need to manually adjust the serial port number. For example, change the serial port 16 above to a serial port.
https://wiki.wit-motion.com/english Click on Port Settings, then click on "Advanced Settings". Change the COM port and click OK. WhatsApp:+86 13652339539 E-mail：support@wit-motion.com Web：https://wiki.wit-motion.
https://wiki.wit-motion.com/english 4 Connect Description 5 Function test Product functionality can be verified by USB to TTL self-loop test and USB to 232 self-loop test. Methods as below: 5.1 USB-TTL Connect the TXD and RXD of the module to the DuPont line. Dial the corresponding DIP WhatsApp:+86 13652339539 E-mail：support@wit-motion.com Web：https://wiki.wit-motion.
https://wiki.wit-motion.com/english switch according to the instructions in the function selection, then insert the module into the computer and use the serial debugging assistant to send data to see if there is corresponding data to return. If you can receive the data sent, the module is functional. 5.
https://wiki.wit-motion.com/english 深圳维特智能科技有限公司 WitMotion ShenZhen Co., Ltd 3-in-1 Serial Conerter Contact: Mr. Kyle Tsang E-mail : support@wit-motion.com Skype: live:kyle_8394 WhatsApp: +86 136 523 39539 Amazon in USA: www.amazon.com/witmotion Amazon in Canada: www.amazon.ca/witmotion Amazon in Japan: www.amazon.co.jp/witmotion Official Direct Store: www.aliexpress.
