CH340T USB to TTL Serial Module

CH340T USB to TTL Serial Module
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  • Product Code:SQ2696
  • Availability: 1000
  • $0.89
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  • Ex Tax:$0.89
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Tags: CH340T, USB to TTL, serial module, UART adapter, CH340, USB serial

The CH340T-USB is a compact USB-to-TTL serial converter module built around the WCH CH340T chip. It provides a simple and reliable bridge between a computer’s USB port and UART-based devices such as Arduino boards, Raspberry Pi, ESP32, and other microcontrollers. The module supports both 3.3V and 5V output levels, selectable via onboard configuration, and offers a communication baud rate range from 50bps to 2Mbps with a hardware full-duplex serial interface and built-in transceiver buffer. It exposes six pins including TX, RX, VCC, GND, and control signals, and its small footprint of approximately 30 × 16mm allows easy integration into breadboards and finished projects.
Driver support covers Windows XP, 7, 10, macOS, and Linux, with straightforward installation and no complex configuration required. This USB serial adapter is widely used for firmware uploads, serial debugging, modem and GPS connections, barcode scanner interfacing, and upgrading routers or DVD players. With the ability to convert to RS232, RS485, or RS422 standards by adding external level-shifting devices, this TTL serial module is a practical tool for developers, engineers, and electronics hobbyists.

USB to UART board Application

  1. Firmware upload and serial debugging for Arduino and ESP32
  2. Connecting serial modems, GPS receivers, and barcode scanners
  3. Upgrading routers, DVD players, and set-top boxes
  4. Raspberry Pi and microcontroller UART communication
  5. Converting USB to RS232, RS485, or RS422 with external level shifters
  6. General-purpose serial data logging and test benches

USB to UART board Specifications

  1. Model: CH340T-USB
  2. Chip: WCH CH340T
  3. Interface: USB to TTL serial (UART)
  4. Output Voltage: 3.3V and 5V (selectable)
  5. Baud Rate: 50bps to 2Mbps
  6. Serial Mode: Hardware full-duplex with built-in transceiver buffer
  7. Pin Count: 6 (TX, RX, VCC, GND, and control signals)
  8. Dimensions: Approximately 30 × 16mm
  9. Driver Support: Windows XP/7/10, macOS, Linux
  10. Conversion Capability: RS232, RS485, RS422 (with external level-shifting devices)
  11. USB Standard: USB 2.0 full-speed (12Mbps)
  12. Operating Temperature: Not specified in the available source
Interfaces
Interface Type USB To TTL
Electrical Parameters
Output Voltage 3.3V - 5V
Board Parameters
Main Chip CH340T
Pin Count 5 Pin
Physical Parameters
Size 25mm x 16mm

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