This small board makes communication between a computer's USB port and UART devices a piece of cake! It uses the CP2102 chip, a single-chip USB-to-UART bridge, which eliminates the need for external components like resistors. It has a 576-byte receive buffer and a 640-byte transmit buffer for data transmission. It is compatible with many operating systems, including Windows (from Windows 2000 to Windows 11), Mac OS-X/OS-9, Linux 2.40 or higher and Android. This version of the module includes a USB-A connection and comes with pin headers and a jumper wire. We also stock a USB-C and Micro-USB version. Features * Supports Mac, Linux, Android, WinCE, Windows 7/8/8.1/10/11 * Voltage output support: 5V or 3.3V * Integrated USB protection device: SP0503 * 3 LEDs: TXD LED, RXD LED, POWER LED * Pins accessible on pin headers: TXD, RXD, RTS, CTS * Other pins are accessible on drilled holes (separate pin headers are provided) Specifications CP2102 Specs * Single-Chip USB to UART Data Transfer * No external resistors required, no external crystal required * On-chip power-on reset circuit and voltage regulator * Integrated 1024-byte EEPROM * USB Function Controller * USB Specification 2.0 compliant; full-speed (12 Mbps) * USB suspend states supported via SUSPEND pins * UART * All handshaking and modem interface signals * Data formats supported: * Data bits: 5, 6, 7, and 8 * Stop bits: 1, 1.5, and 2 * Parity: odd, even, no parity * Baud rates: 300 bps to 1 Mbits * 576 Byte receive buffer; 640 byte transmit buffer * Hardware or X-On/X-Off handshaking supported * Event character support * Virtual COM Port Device Drivers * Windows 8/7/Vista/Server 2003/XP/2000 * MAC OS-X/OS-9 * Linux 2.40 or higher * USBXpress Direct Driver Support * Windows 7/Vista/Server 2003/XP/2000 * Windows CE * Temperature Range * –40 to +85 °C Resources * Product Wiki * Driver File Pinout MCU * VCCIO: 3.3V or 5V output (the module is powered from USB, the jumper should be shorted to 3.3V or 5V) * GND: connects to GND * TXD: connects to MCU.RX (signal direction: MCU.RX << CP2102 << PC.TX) * RXD: connects to MCU.TX (signal direction: MCU.TX >> CP2102 >> PC.RX) * RTS: connects to MCU.CTS (signal direction: MCU.CTS << CP2102 << PC.RTS) * CTS: connects to MCU.RTS (signal direction: MCU.RTS >> CP2102 >> PC.CTS) Package Contents * 1x CP2102 USB UART Board (USB-A) * 2x 4-pin male pinheader & 4-pin female pinheader * 1x 6-pin custom connector jumper wire https://elecena.pl/product/27751651/cp2102-usb-uart-board-usb-a 2025-01-24 https://elecena.pl/product/27751651/cp2102-usb-uart-board-usb-a 2025-02-14 https://elecena.pl/product/27751651/cp2102-usb-uart-board-usb-a 2025-08-06 https://elecena.pl/product/27751651/cp2102-usb-uart-board-usb-a 2025-11-28 https://elecena.pl/product/27751651/cp2102-usb-uart-board-usb-a 2025-11-29