- Reduced price
Product description: USB-UART converter CH343 - USB mini plug - Waveshare 21440
The converter is based on the CH343 chip . It enables communication between USB and UART interfaces. It is used to exchange data between a computer and a microcontroller. It ensures stable information transfer and is compatible with many operating systems. It is powered with the voltage of 5 V or 3.3 V (selection with a jumper). The version is equipped with a mini USB connector.
Converter USB-UART CH343 - USB mini plug - Waveshare 21440 .
Converter pins .
The pins of the module
- VCC - output voltage 5 V or 3.3 V (jumper selection)
- GND - ground
- TXD - UART transmitter pin (connected to MCU.RDX)
- RDX - UART receiver pin (connected to MCU.TXD)
- RTS # - Request to Send signal of UART interface (connects to MCU.CTS)
- CTS # - Clear to Send signal of UART interface (connects to MCU.RTS)
Features of the USB-UART converter
- Based on CH343 chip: Supports higher data rate (up to 6Mbps).
- Compatible with operating systems: Mac, Linux, Android, Windows 7/8 / 8.1 / 10/11.
- Built-in resettable fuse, transient voltage choke. The module has overcurrent, anti-overvoltage and antistatic protections, improving shock resistance. Provides stable and secure communication.
- Built-in 3.3V and 5V TTL level switch to select TTL communication level.
- Support for 3.3V / 5V output (the module is powered by USB, and the jumper on the board should be properly shorted to 3.3V or 5V).
USB-UART converter CH343 - Waveshare 21440 .
Detailed dimensions of the module .
Waveshare 21440 specification
- Developer: Waveshare
- Manufacturer's model number: 21440
- Product type: USB-UART converter
- Control system: CH343
- Data transfer rate: 50 bps to 6 Mbps
- USB: mini type
- Built-in diodes indicating: PWR power supply, and work in RXD and TXD modes
Kit contents
- USB-UART CH343 converter - USB mini plug - Waveshare 21440: 1 pc.
- 6-pin cable: 1 pc.
