Description of product


The LC231X module is a low cost USB to UART bridge using FTDI’s FT231X to transfer data at up to 3M Baud. Ideal for programming Arduino Pro, ESP modules etc.. It also provides the pinout which follows the industry standard FTDI TTL cable interface. The module provides the UART interface with full modem handshaking control too. The LC231X IO interface also provides the option to output 5V power to external hardware. The interface IO levels may be set to either set to 3V3 or 5V by an on-board jumper with no soldering / de-soldering required. In 5V mode, outputs are rail to rail for maximum reliability.

The LC231X module provides 2 interface options. One is a 1X6 pin right angle socket header which follows the industry standard FTDI TTL cable interface for basic UART signals(RXD, TXD, RTS, CTS, Power and GND). The other is the full UART plus modem handshake control signals, mapped to two rows of 1x7 pin headers. Note the user cannot fit all connectors at the same time. The two header rows are spaced 0.5″ apart along the sides of the board, which allows the module to plug into a solderless breadboard. Each module is supplied with one right angle socket and two 7pin headers included. The user can select which ones to fit. Furthermore there are TX and RX LEDs to indicate data transmission on the UART signals.


The LC231X module utilises the FT231X from FTDI. For a full list of the FT231X’s features refer to the FT231X datasheet. In addition, the LC231X has the following features:

 Small PCB size as 15.24mm X 28.19mm

 Configurable IO voltage interface

 USB 2.0 full speed

 Provides a full modem control interface

 Low supply current :10mA

 Supported baud rates: 300 bps to 3 Mbps

 Power output to external logic 5V/3V3

 Provides two I/O header options: - One 1X6 pin right angle socket header for standard FTDI TTL cable interface, - Or two rows of 1x7 pin headers for full modem handshake control and GPIO functions.

 -40oC to +85oC operational temperature range

 Full RoHS compliance