With this USB-to-serial adapter, you can easily connect a TTL serial device to a PC by acting as a virtual serial port. The board is a micro-USB carrier for the Silicon Labs CP2104 USB-to-UART Bridge that provides access to all its control signal pins and GPIO pins.
>This USB-to-serial adapter is a breakout board for the Silicon Labs CP2104 USB-to-UART bridge and is ideal for connecting microcontroller projects and other logic-level serial devices to a PC. The tiny unit measures only 0.6″ × 0.95″ including Micro-USB connection. It offers several options for accessing the CP2104's data, control and GPIO pins, all provided at 0.1″ intervals.
This board uses standard 3.45V signal levels, but the signal pins can tolerate higher voltages, so the adapter can be used with 5V systems that consider 3.45V to be logically high. The green LED on the SUSPEND line indicates an active USB connection when it is lit.
The adapter looks like a standard virtual serial port (COM port) to the computer's operating system, i.e. it can be used with any software designed to work with a serial port (even an older RS-232 port). The CP2104 is a full-speed USB 2.0 device that allows baud rates of up to 2 Mbps. Drivers are available from Silicon Labs for Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10, Linux and Mac OS X.
nbsp; Dimensions: 0.6″ × 0.95″ including connectors
nbsp; USB standard: USB 2.0 (full speed)
nbsp; connection: USB Micro-B
nbsp; logic voltage level: 3.45 V (5 V tolerant)
nbsp; supported baud rates: 300 bit/s to 2 Mbit/s
nbsp; supply current: 25 mA