Converter USB-UART CH343 - USB type micro - Waveshare 21441

Index: WSR-21711
The module is based on the CH343 chip . It allows communication between USB and UART interfaces. The device is used for data exchange between a computer and a microcontroller. It provides a stable information transfer process and is also compatible with many operating systems. The converter is powered with the voltage of 5 V or 3.3 V (selection with a jumper). The version is equipped with a micro USB connector.
Converter USB-UART CH343 - USB type micro - Waveshare 21441
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Manufacturer: Waveshare

Product description: USB-UART converter CH343 - USB micro plug - Waveshare 21441

The module is based on the CH343 chip . It allows communication between USB and UART interfaces. The device is used for data exchange between a computer and a microcontroller. It provides a stable information transfer process and is also compatible with many operating systems. The converter is powered with the voltage of 5 V or 3.3 V (selection with a jumper). The version is equipped with a micro USB connector.

Converter USB-UART CH343 - USB type A plug - Waveshare 21442

Converter USB-UART CH343 - USB micro type plug - Waveshare 21441 .


Converter pins

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 anti-static 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 21442

USB-UART converter CH343 - Waveshare 21441 .


Detailed dimensions of the module

Detailed dimensions of the module .

Waveshare 21441 specification

  • Developer: Waveshare
  • Manufacturer's model number: 21441
  • Product type: USB-UART converter
  • Control system: CH343
  • Data transfer rate: 50 bps to 6 Mbps
  • USB: micro
  • Built-in diodes indicating: PWR power supply, and work in RXD and TXD modes

Kit contents

  • Converter USB-UART CH343 - USB micro plug - Waveshare 21441: 1 pc.
  • 6-pin cable: 1 pc.

Converter - chip CH343
Converter - Socket microUSB B
Converter - Interface UART
Package width 7 cm
Package height 10 cm
Package depth 1 cm
Package weight 0.0106 kg

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