Description
Product Overview
The CP2102 USB to TTL Serial Converter is a compact, high-performance communication adapter designed to bridge the gap between your computer’s USB port and your microcontroller or embedded systems. This pink-colored 4-pin module provides a simple, reliable solution for programming, debugging, and serial communication with devices such as Arduino boards, STM32, ESP8266, ESP32, and Raspberry Pi .
At its core is the Silicon Labs CP2102 chip, an industrial-grade USB-to-UART bridge controller known for its excellent stability, high performance, and broad driver support across Windows, macOS, and Linux operating systems . The module supports both 3.3V and 5V logic levels, making it versatile for a wide range of microcontroller projects .
The compact design (approximately 24mm × 15mm) occupies minimal space, while the onboard 500mA self-recovery fuse protects your computer’s USB port and the module itself from accidental short circuits . Built-in TX/RX status LEDs provide real-time visual feedback of data transmission activity, simplifying debugging and troubleshooting .
This 4-pin version features a standard pinout with power supply outputs (5V and 3.3V), transmit (TXD), receive (RXD), and ground (GND). The module is fully compatible with Windows 10 (and newer versions like Windows 11), as well as macOS and Linux systems .
Key Features
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Industrial-grade CP2102 Chipset: Powered by Silicon Labs CP2102 USB-to-UART bridge controller, offering high stability and reliable data transfer
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Dual Voltage Compatibility: Supports both 3.3V and 5V logic levels, making it suitable for a wide range of microcontroller projects
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Compact and Portable Size: Ultra-small PCB design (approx. 24mm × 15mm) fits easily in your toolkit
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500mA Self-Recovery Fuse: Onboard resettable fuse protects your computer and module from short circuits; recovers automatically after fault clearance
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Built-in TX/RX Status LEDs: Visual indicators for data transmission and reception – transmit data lights up when sending; receive data lights up when receiving
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High-Speed Communication: Supports baud rates from 300 bps up to 1 Mbps, suitable for fast firmware uploads and real-time data logging
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Wide Operating System Support: Compatible with Windows (7, 8, 10, 11), macOS, and Linux
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Plug-and-Play Installation: Simple driver installation process with Silicon Labs VCP drivers
Technical Specifications
| Parameter | Operating Value |
|---|---|
| Chipset | Silicon Labs CP2102 |
| Operating Voltage | 5V (via USB bus) |
| Voltage Outputs | 5V (up to 500mA) / 3.3V (up to 100mA) |
| Logic Level | 3.3V (TXD/RXD) |
| Maximum Baud Rate | Up to 1 Mbps (typical 300–115200) |
| Protection | 500mA Self-Recovery Fuse |
| Connector Type | 4-pin header (2.54mm pitch) |
| Indicator LEDs | Power, TX, RX |
| Dimensions | Approx. 24mm × 15mm |
| Supported OS | Windows 7/8/10/11, macOS, Linux |
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