
The Story
7Semi CH340C USB to TTL Converter Nano Breakout
The 7Semi CH340C USB to TTL Converter Nano Breakout is a compact and versatile USB to TTL Converter module designed to bridge the communication gap between USB-equipped computers and microcontrollers or serial devices that use TTL-level signals. Many development boards and embedded systems lack native USB interfaces, making programming and serial communication difficult—this converter solves that by providing seamless USB to Serial TTL connectivity for data transfer, firmware uploading, and debugging.
Featuring the reliable CH340C USB-to-serial chip, this breakout board offers stable performance and broad compatibility with popular operating systems. With easy plug-and-play USB-C connectivity and clearly labeled TTL pins, it’s perfect for students, hobbyists, and professionals working with Arduino, ESP32, STM32, Raspberry Pi, and other microcontrollers. Whether you’re programming, logging data, or communicating with UART peripherals, this module simplifies and speeds up your workflow with dependable USB-to-serial communication.
Features:
- USB-C compatibility for easy plug-and-play use with modern laptops and devices
- Powered by the reliable CH340C USB-to-Serial chip for stable operation
- Standard RX, TX, VCC, and GND pinout for flexible connections
- Built-in TX (Blue) and RX (Red) LEDs for real-time data transmission monitoring
Applications:
- Microcontroller development – program, debug, and communicate with boards easily
- GPS integration – connect and configure GPS modules for location-based projects
- Sensor communication – interface with sensors to read and analyze data
- Legacy device support – enable USB connectivity for older serial-based equipment

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
7Semi CH340C USB to TTL Converter Nano Breakout
The 7Semi CH340C USB to TTL Converter Nano Breakout is a compact and versatile USB to TTL Converter module designed to bridge the communication gap between USB-equipped computers and microcontrollers or serial devices that use TTL-level signals. Many development boards and embedded systems lack native USB interfaces, making programming and serial communication difficult—this converter solves that by providing seamless USB to Serial TTL connectivity for data transfer, firmware uploading, and debugging.
Featuring the reliable CH340C USB-to-serial chip, this breakout board offers stable performance and broad compatibility with popular operating systems. With easy plug-and-play USB-C connectivity and clearly labeled TTL pins, it’s perfect for students, hobbyists, and professionals working with Arduino, ESP32, STM32, Raspberry Pi, and other microcontrollers. Whether you’re programming, logging data, or communicating with UART peripherals, this module simplifies and speeds up your workflow with dependable USB-to-serial communication.
Features:
- USB-C compatibility for easy plug-and-play use with modern laptops and devices
- Powered by the reliable CH340C USB-to-Serial chip for stable operation
- Standard RX, TX, VCC, and GND pinout for flexible connections
- Built-in TX (Blue) and RX (Red) LEDs for real-time data transmission monitoring
Applications:
- Microcontroller development – program, debug, and communicate with boards easily
- GPS integration – connect and configure GPS modules for location-based projects
- Sensor communication – interface with sensors to read and analyze data
- Legacy device support – enable USB connectivity for older serial-based equipment
























