USB To UART Communication Module Stable Transmission | Multi-Device Applicable | Multi-System Compatible Features At A Glance Adopts new version CH343G chip

Compared with CH340G, it supports higher data rate (up to 6Mbps) and more serial port IO levels (5V / 3

3V / 2

5V / 1

8V) Supports Mac, Linux, Android, Windows 7/8/8

1/10/11 Onboard resettable Fuse and Transient Voltage Suppressor, anti-overcurrent and anti-overvoltage, anti-surge, anti-static, improve shock resistance, stable and safe communication performance Onboard IO protection circuits, anti-surge, anti-static, stable and safe communication performance Onboard 3

3V and 5V TTL level switch pins for selecting TTL communication level Support 3

3V/5V output (the module is powered by USB, and the onboard jumper should be shorted to 3

3V or 5V accordingly) Adopts double-sided black immersion gold process, which is durable and has a good look Specifications HOST INTERFACE USB DEVICE INTERFACE UART COMMUNICATION RANGE 50bps ~ 6Mbps USB DEVICE INTERFACE connector: mini-USB, micro-USB, USB Type-A, USB Type-C; protection: resettable Fuse, ESD protection UART INTERFACE connector: 6pin right-angle pinheader; protection: IO protection diode Multiple Protection Circuit, Safe And Stable Onboard Resettable Fuse And Transient Voltage Suppressor, Prevent Overcurrent And Overvoltage, Improve Shock Resistance; Onboard IO Protection Circuit, Anti Surge, Anti-Static, Stable And Safe Communication Performance Multiple Systems Support Compatible With Popular Systems Like Win7/8/8

1/10/11, Mac, Linux, Android

Interface Introduction INDICATOR DESCRIPTION PWR Power indicator, turn on when the voltage is detected from USB interface RXD Receiving indicator, turn on when data is sent back from the device interface TXD Sending indicator, turn on when data is sent from USB Pinouts Definition VCC 5V or 3

3V output for external device (configured by jumper) GND Ground TXD Connects to MCU

RXD RXD Connects to MCU

TXD RTS# Connects to MCU