CP2102 USB to TTL/RS232 Serial Converter Cable

The CP2102 USB to TTL/RS232 Serial Converter Cable integrates the Silicon Labs CP2102 USB-to-UART bridge IC inside the cable’s USB connector housing, making the cable itself the converter rather than requiring a separate module on the bench. The USB end plugs into any laptop or desktop USB-A port, and the other end terminates in four individual colour-coded header wires that connect to the target device’s UART pins. The cable enumerates as a virtual COM port after CP2102 driver installation, appearing to the operating system as a standard serial port — accessible from Arduino IDE, PuTTY, minicom, or any serial terminal application.

The USB to TTL Serial Converter Cable colour coding follows a widely used convention: Red carries 5V power from the USB bus for powering small target devices directly, Black is ground, White is RXD from the USB port’s perspective — meaning this wire receives data transmitted from the target device’s TX pin — and Green is TXD from the USB port’s perspective, meaning this wire sends data into the target device’s RX pin. The most common wiring mistake is connecting TX-to-TX and RX-to-RX, which produces no communication — White always goes to the target TX and Green always goes to the target RX.

The cp2102 usb ttl serial convertor cable 90cm length reaches from a seated laptop to a development board at the far end of a standard bench without extension. The Dupont-style pins at the header end fit breadboard rows and standard 0.1 inch pitch pin headers on development boards directly. The cp2102 usb to ttl rs232 serial converter cable suits embedded UART debugging, GPS module configuration, and Bluetooth AT command setup builds. Available on StemVolt. CP2102 cable working on serial communication and build UART interface.

Related Product:

• Checkout CP2102 USB to TTL UART Serial Converter Module

Features:

• CP2102 USB to TTL/RS232 Serial Converter Cable for USB to UART Communications.
• Colour-coded 4-wire header — Red, Black, White, Green with labelled functions.
• Virtual COM port enumeration on Windows, macOS, and Linux.
• Reach covers standard bench distance between laptop and target board.
• Dupont header pins connect to breadboard and 0.1 inch pitch PCB headers directly.

Technical Specifications:

Applications:

• CP2102 USB to TTL Serial Converter Cable programs ESP-01 and ESP-07 module firmware directly
• USB to TTL Serial Converter Cable reads GPS module NMEA sentence output on serial terminal
• Configures HC-05 Bluetooth module AT commands from laptop and build serial terminal
• CP2102 usb ttl serial convertor cable programs Arduino bootloader onto bare ATmega328P chip
• USB to RS232 serial cable debugs industrial sensor UART output from embedded controller builds

Package Include:

• 1 x CP2102 USB to TTL/RS232 Serial Converter Cable