Description

CP2102 USB 2.0 to TTL UART Serial Converter Module (5 Pin)

The CP2102 USB 2.0 to TTL UART Serial Converter Module (5 Pin) is a highly reliable and easy-to-use adapter designed for connecting USB-enabled devices to microcontrollers, development boards, and embedded systems. Based on the Silicon Labs CP2102 chipset, this module provides seamless USB-to-serial communication, making it an essential tool for developers, engineers, students, and hobbyists working with electronics and programming.

Whether you are uploading code to an Arduino Pro Mini, debugging an ESP8266 or ESP32 Wi-Fi module, or interfacing with other microcontrollers such as STM32 or ARM-based systems, the CP2102 module offers fast, stable, and error-free communication. With its 5-pin breakout design and compact form factor, it’s perfect for both DIY electronics projects and professional embedded applications.

Key Features of CP2102 USB to TTL Converter

• Chipset: Silicon Labs CP2102 for reliable USB-to-serial communication.

• 5-Pin Breakout: Includes VCC, GND, TXD, RXD, and DTR for easy integration.

• USB 2.0 Interface: Ensures fast and stable data transfer.

• Wide Voltage Support: Compatible with 3.3V and 5V logic levels.

• Plug and Play: No external power required; powered directly via USB.

• Operating System Support: Compatible with Windows, Linux, and Mac OS.

• Compact and Lightweight: Portable design suitable for fieldwork and classroom use.

• Driver Support: Readily available drivers from Silicon Labs ensure easy installation.

Technical Specifications

• Chipset: Silicon Labs CP2102

• Interface: USB 2.0 to UART TTL

• Voltage Compatibility: 3.3V and 5V logic levels

• Baud Rate: 300 bps to 1 Mbps

• Pins: VCC, GND, TXD, RXD, DTR

• Connector Type: USB Type-A (standard USB plug)

• Dimensions: Compact PCB design

• Supported OS: Windows XP/7/8/10/11, Mac OS, Linux

Why Choose the CP2102 USB to TTL UART Module?

The CP2102 serial converter is one of the most popular and reliable USB-to-UART adapters on the market. Unlike cheaper, unstable alternatives, it provides high stability, wide OS support, and robust driver availability.

Key advantages include:

1. Seamless integration with Arduino, ESP8266, ESP32, STM32, and other MCUs.

2. DTR pin support, allowing auto-reset functionality when uploading code to development boards.

3. High baud rate range, ensuring compatibility with different devices.

4. Trusted Silicon Labs chipset, known for reliability and performance.

Applications of CP2102 USB to TTL Converter

This versatile module can be used in various applications, including:

• Arduino Development: Uploading sketches to boards without native USB.

• ESP8266/ESP32 Programming: Flashing firmware and debugging.

• Microcontroller Communication: Interfacing with STM32, PIC, and ARM MCUs.

• Serial Debugging: Monitoring and troubleshooting embedded systems via serial port.

• DIY Electronics Projects: Easy integration with custom circuits and IoT projects.

• Education and Training: Teaching serial communication and embedded programming.

How to Use the CP2102 with Arduino or ESP8266

1. Install the Silicon Labs CP2102 driver (available for Windows, Mac, and Linux).

2. Connect the module to your computer via USB.

3. Use jumper wires to connect TXD → RXD, RXD → TXD, GND → GND, and VCC (3.3V or 5V) to your target board.

4. For Arduino Pro Mini or ESP8266, connect the DTR pin to enable auto-reset.

5. Open the Arduino IDE or serial terminal and select the correct COM port.

6. Upload your code or start serial communication immediately.

This straightforward process makes the CP2102 one of the easiest USB-to-serial converters to use.

Package Includes

• 1 × CP2102 USB 2.0 to TTL UART Serial Converter Module (5 Pin)

Conclusion

The CP2102 USB to TTL Serial Converter Module is an essential tool for anyone working with microcontrollers, IoT devices, and embedded systems. Its high reliability, simple 5-pin design, and wide compatibility make it perfect for both beginners and professionals.

Whether you are flashing ESP8266 firmware, debugging Arduino projects, or teaching serial communication, the CP2102 delivers excellent performance at an affordable price. Its stability, compact size, and cross-platform driver support make it a must-have accessory in any electronics toolkit.

By choosing the CP2102 USB 2.0 to TTL UART Module, you are ensuring reliable, fast, and hassle-free communication between your computer and embedded devices.

Data Sheet