CP2102 USB to TTL UART Serial Converter Module (Red Version with Cable & Packaging) – STC Programmer Downloader

Description

Product Overview

The CP2102 USB to TTL UART Serial Converter Module (Red Version) is a complete, ready-to-use programming and communication solution designed to bridge the gap between a computer’s USB port and a microcontroller’s serial interface. Based on the high-performance Silicon Labs CP2102 bridge controller, this module creates a virtual COM port on your computer, allowing you to program, debug, and communicate with embedded systems that lack native USB connectivity.

What sets this kit apart is its complete package – the module comes pre-soldered with header pins and includes a high-quality USB cable and packaged packaging, making it a particularly convenient choice for users who want a hassle-free, “out of the box” experience without needing to source cables separately. The red PCB version offers clearly labeled 5V, 3.3V, TXD, RXD, DTR, and GND pins, and the kit often includes jumper wires for immediate prototyping.

This module is specifically designed to be an STC Microcontroller Programmer Downloader, making it widely used for flashing code onto STC series microcontrollers as well as a universal serial adapter for Arduino Pro Mini, ESP8266, ESP32, STM32, and other UART devices. With support for baud rates up to 1.5 Mbps and broad driver compatibility across Windows, macOS, and Linux, this CP2102-based converter is a trusted choice for electronics hobbyists, educators, and professionals.

Key Features

• Genuine CP2102 Chipset: Based on the high-performance Silicon Labs CP2102 USB 2.0 to UART bridge controller, known for excellent stability and broad compatibility

• Complete Kit with Cable & Accessories: Includes the red module, USB-A to USB cable, and often jumper wires – ready to use right out of the box

• 6-Pin Interface with Auto-Reset: Standard 6-pin 2.54mm pitch pinout (3V3, 5V, TXD, RXD, DTR, GND) featuring DTR line for automatic reset of Arduino-compatible boards during upload

• Dual Voltage Output: Provides both 3.3V (up to 50-100mA) and 5V (up to 500mA) power outputs to supply your target device

• STC Microcontroller Programmer: Specifically designed to support full range of STC single-chip microcomputers for program download and flashing

• High-Speed Communication: Supports baud rates from 300 bps up to 1.5 Mbps, suitable for fast data transmission and programming

• Integrated Self-Recovery Fuse: Onboard resettable fuse protects your computer’s USB port and the module from short circuits and overcurrent conditions

• Visual Status LEDs: Three onboard LEDs provide clear status indication: POWER (red), TXD (green), and RXD (blue) for real-time activity monitoring

• Compact Form Factor: Small PCB footprint (approx. 45mm × 14mm) allows easy integration into projects and enclosures

• Cross-Platform Driver Support: Works with official Silicon Labs VCP drivers on Windows, macOS, and Linux

Technical Specifications