The 7Semi CH340C USB-C to Serial TTL Converter Breakout is a cutting-edge solution designed to seamlessly connect your devices. Equipped with a USB C type connector, this mini breakout board ensures convenient and reliable connectivity for your various applications.
Powered by the latest CH340C chip, this converter delivers exceptional performance and compatibility. Its comprehensive pinout, including DTR, RX, TX, VCC, CTS, and GND, makes it compatible with a wide range of devices, allowing for smooth communication and data transfer.
Whether you are working with GPS modules, microcontrollers, or other electronic components, the 7Semi CH340C USB-C to Serial TTL Converter Breakout provides the flexibility and versatility you need. Experience enhanced productivity and seamless integration with this advanced converter, empowering you to take your projects to new heights.
LEDsThere are two LEDs TX (Blue) and RX (Red) on the board and are connected to and correctly aligned to the Pins: RX and TX. This is a quick and easy way to observe the serial traffic.
USB to Serial Adapter Pins Overview

Pin Label
Input/Output
Description

DTR
Output
Data Terminal Ready, Active Low

RX
Input
Serial Receive

TX
Output
Serial Transmit

VCC
Supply Output
Power supply3.3V (Default)or 5V

CTS
Input
Clear To Send, Active Low

GND
Supply Output
Ground (0V) supply

Resources
Datasheet CH340

AUSB to Serial ConverterBreakout is a device that enables communication between a computer and a serial device. It is designed to convert the USB signal to serial signals and vice versa, allowing devices that do not have a native USB interface to connect to a computer via USB. The breakout board typically includes a USB connector, a microcontroller, and a serial interface. This device is commonly used in industrial automation, embedded systems, and other applications where serial communication is necessary. The converter breakout can be very useful for programmers and engineers who need to interface with legacy equipment that still uses serial communication. It is an affordable and reliable way to modernize the communication between a computer and a serial device.

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