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CH340G USB to Serial Converter

CH340G USB to Serial Converter

Regular price Rs. 78
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  • The CH340G converter has built in USB to TTL Transfer chip.
  • It produces a dual 3.3V and 5V Power output and can work with 3.3v and 5 V target device.
  • This converter module is perfect for projects based on USB to TTL conversions.
  • The CH340G converter is designed specifically for STC download and supports all series of STC.
  • Supports the common MODE of contact signal

CH340G USB to Serial Converter

This is CH340G USB To TTL(Serial) Converter, USB to TTL / USB-TTL /STC microcontroller programmer / PL2303 in nine upgrades plate with a transparent cover Compatible with ARDUINO, RASPBERRY PI, AVR, PIC, 8051, etc. This USB–TTL converter is based on CH340G USB to Serial TTL converter chip. The module can be used for 3.3V logic level signals and has the option to switch from 5V to 3.3V logic level using a 2 pin shunt supplied with the module. The CH340 USB to serial adaptor makes use of the CH340 USB to serial IC to provide a low-cost alternative to our popular FTDI-based module. Although much cheaper this module doesn’t lack in features or usability. 

Note: Once you have installed the drivers the module will appear as a normal serial COM port on your computer making it compatible with most terminal programs and development environments such as the Arduino IDE.

The module includes a small switch that allows the voltage available at the VC (Supply output) pin to be switched between 3.3 and 5V. Data pins include TX and RX. These digital pins are at 5V TTL levels allowing them to be directly interfaced with most 5V microcontrollers.

What does the CH340G USB to Serial TTL converter support?

  • The USB to serial converter supports WINDOWS 98 / ME / 2000 / XP / Server 2003 / VISTA /Server 2008 / Win7 / Win8 32 Bit / 64.
  • For the purpose of communication, the USB serial converter supports USB1.1 or USB2.0/USB3.0.
  • It also supports RS232, RS485, and RS422 interfaces.
  • The CH340G USB to Serial converter also supports common MODE contact signal and IRDA SIR infrared communication.


  • Programming 
  • USB to UART Converter
  • Debugging
  • Serial Monitor

Package Includes:

  • 1 x CH340G USB to serial TTL converter


Model  CH340G
Converter Type USB to serial TTL converter
Operating System WINDOWS 98 / ME / 2000 / XP / Server 2003 / VISTA /Server 2008 / Win7 / Win8 32 Bit / 64.
Dimensions 4 x 2 x 0.5cms
Weight 10 grams

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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1. How to use a CH340G USB to Serial Converter?

  • The CH340G USB to Serial device works with  5.0V and 3.3V logic level devices (jumper selectable) and exposes the RX and TX lines. Works with Arduino Pro Mini and ESP8266 devices, but requires manually toggling the reset line. If you feel like it, it's relatively easy to solder wires directly to the chip leads, exposing flow control lines such as RTS, CTS, DSR, and DTR.

2. What are the applications of CH340G USB to Serial Converter?

  • Uses of USB to TTL Converter:
    • Can be used in Programming 
    • Used for USB to UART Converter
    • Debugging
    • Serial Monitor
    • Used to update your device
    • Used for various diagnostic
    • Can be used for gas LPG ECU interface adjustments