Description
The CH340G USB to RS232 TTL Converter Module is a compact and powerful tool for interfacing microcontrollers with your PC via USB.
Perfect for programming boards like the Arduino Pro Mini or for adding serial connectivity to embedded projects.
This versatile module supports both 3.3V and 5V logic levels and works with a wide range of Windows operating systems and USB standards, making it an essential part of any maker or developer’s toolkit.
- Product: USB to RS232 TTL CH340G Converter
- Chipset: CH340G
- Outputs: Selectable 3.3V / 5V TTL Logic
- Interfaces: RX / TX / GND / VCC / DTR
- USB Compatibility: USB 1.1 / 2.0 / 3.0
- Driver Support: Windows 98, ME, 2000, XP, Vista, 7, 8, Server 2003/2008 (32/64-bit)
- Socket Pitch: Standard 2.54mm header compatible
- Communication Support: RS232, RS485, RS422, MODE signal, IRDA SIR infrared
- Application: USB-to-serial bridge for microcontrollers
Key Features:
- CH340G USB-to-serial chip – stable and widely supported
- Supports both 3.3V and 5V logic levels
- TX and RX pins for serial communication
- Compatible with standard 2.54mm pitch sockets
- Works with Arduino Pro Mini, ESP8266, STM32, and more
- Includes DTR pin for auto-reset during programming
- Supports USB1.1/2.0/3.0 interfaces
- IRDA SIR and RS232/RS485/RS422 simulation support
- Compact size, easy to integrate into breadboards or custom enclosures
What’s Included:
- 1x USB to RS232 TTL CH340G Converter Module
Great For:
- Programming Arduino Pro Mini or similar boards
- Adding USB serial communication to microcontroller projects
- Flashing firmware on routers or ESP modules
- Serial communication debugging and monitoring
- IR or RS232/485/422 interfacing on embedded systems
- DIY keyboards, IoT projects, and serial terminal access
Usage Tips:
- Ensure correct voltage (3.3V or 5V) is selected before use
- Use a standard micro USB cable for connection to your PC
- Drivers for CH340G can be downloaded online if not pre-installed
- Monitor serial data via Arduino IDE, PuTTY, or similar software
- Use DTR for auto-reset when flashing Arduino boards
