The USB to TTL CP2102 module is a reliable and compact serial interface converter designed to connect microcontrollers, Arduino boards, and other TTL-based devices to a PC via USB. Using the CP2102 chip, it supports fast and stable data transmission, making it ideal for programming, debugging, and serial communication. The module is compatible with multiple operating systems, including Windows, Linux, and macOS, providing a versatile solution for hobbyists and professionals alike.
Technical Specifications
Core Specifications
Chipset: CP2102 USB to UART bridge
Interface: USB 2.0 to TTL serial (TX, RX)
Logic levels: 3.3 V or 5 V (selectable)
Baud rate: Up to 1 Mbps
Driver support: Windows, Linux, macOS
Electrical & Physical
Power supply: 5 V DC from USB port
Compact PCB size approximately 25 mm × 15 mm × 7 mm
Pinout: VCC, GND, TXD, RXD, RTS, CTS (depends on module variant)
LED indicators for power and data transmission
Environmental
Operating temperature range: –40 °C to +85 °C
Designed for indoor electronics and programming applications
Why Choose the CP2102 USB to TTL Module
Provides seamless USB-to-serial communication for TTL devices
Stable and fast data transfer with minimal latency
Supports multiple logic levels (3.3 V / 5 V) for flexible integration
Critical Uses
Programming Arduino, ESP8266, ESP32, and other microcontrollers
Serial debugging and logging of embedded devices
Communication with sensors, GPS modules, and other TTL peripherals
Firmware updates for small electronic devices
Pro Tips
Install the correct CP2102 driver for your operating system before use
Match the module’s logic level with your target device (3.3 V or 5 V)
Use short, quality USB cables for stable data transmission
Package Includes
1 × USB to TTL CP2102 Module