Waveshare USB-A to UART High-Speed ​​Bandwidth Transmission Module Connectors, USB-A

Functionality
1. Adopt 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)
2. Support Mac, Linux, Android, Windows 7/8/8.1/10/11
3. On-board resettable fuse and transient voltage suppressor, anti-overload and anti-overvolt, anti-surge, anti-static, shock enhancement, stable and safe communication performance
4. On-board IO protection circuits, anti-surge, anti-static, stable and safe communication performance
5. Onboard 3.3V and 5V TTL level pins for TTL communication level selection
6. Support 3.3V/5V Output (The module is powered by USB and the on-board jumper should be shorted to 3.3V or 5V accordingly)
7. Adopt double-sided black dipping gold process, which is durable and has beautiful appearance
Specifications
1. Host interface: USB
2. Device interface: UART
3. Communication range: 50bps ~ 6Mbps
4. USB device interface: USB type A
5. Protection: Resettable fuse, ESD protection
6. UART interface connector: 6-pin right angle pinhead
7. Protection: IO protection diode
Description of the indicator
1. PWR: Power indicator, turn on when voltage is detected by USB interface
2. RXD: receiving indicator, light up when data is sent from the device interface
3. TXD: Send indicator, light when data is sent from USB
Definition of nitpickers
1. VCC: 5V or 3.3V output for external device (configured by Jumper)
2. GND: earth
3. TXD: connect to MCU.RXD
4. RXD: connect to mcu.txd
5. RT: connects to MCU.CTS
6. CTS: Connects to MCU.RTS