This allows any pin to be accessed easily while the adapter is plugged into a solderless breadboard, as shown in the left picture below.Īlternatively, a 1×6 header can be soldered to the end of the board, as shown in the right picture below. "Ring indicator" control input (active low)Īll of the adapter’s pins are available in two rows spaced 0.5″ apart along the sides of the board. "Data carrier detect" control input (active low) "Data terminal ready" control output (active low) (often used with DSR) "Data set ready" control input (active low) (often used with DTR) “Ready to send” control output (often used with CTS) “Clear to send” control input (often used with RTS) Supported baud rates: 300 bps to 2 MbpsĪsynchronous serial data transmit (idle high).Logic voltage level: 3.45 V (5 V tolerant).Dimensions: 0.6″ × 0.95″ including connector.This product requires a USB A to Micro-B cable (not included) to connect to a computer.įor a similar adapter with a USB Mini-B connector, please see the Pololu USB-to-Serial Adapter.
USB TO SERIAL CONNECTOR DRIVERS
Drivers are available from Silicon Labs for Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10, Linux, and Mac OS X. The CP2104 is a full-speed USB 2.0 device and allows baud rates of up to 2 Mbps.
USB TO SERIAL CONNECTOR SOFTWARE
The adapter looks like a standard virtual serial port (COM port) to the computer’s operating system, which means it can be used with any software designed to work with a serial port (even a legacy RS-232 port). The green LED on the SUSPEND line indicates an active USB connection when lit. This board uses 3.45 V signal levels by default, but the signal pins can tolerate higher voltages, allowing the adapter to be used with 5 V systems that see 3.45 V as a logic high.
It offers several options for accessing the data, control, and GPIO pins on the CP2104, all of which are made available on a 0.1″ spacing. The tiny unit measures only 0.6″ × 0.95″ including its Micro-USB connector. This USB-to-serial adapter is a breakout board for the Silicon Labs CP2104 USB-to-UART bridge, and it is a great solution for connecting microcontroller projects and other logic-level serial devices to a personal computer. OverviewĬP2104 USB-to-serial adapter carrier, bottom view with dimensions. Its lower-priced successor, the CP2102N USB-to-Serial Adapter Carrier can be used as a drop-in replacement in most applications, and it offers a few improvements including support for higher baud rates (up to 3 Mbps) and a re-programmable configuration ROM. Note: This product is not recommended for new designs (NRND) based on Silicon Labs designating the CP2104 as NRND.