BLE, UART, and USB three-way chip for versatile data transmission Supports master mode, slave mode, and master-slave integrated mode Configurable Bluetooth communication and parameters in slave and master-slave modes Supports BLE 4.2 for enhanced connectivity Serial port supports AT command configuration and MODEM communication signals, with a maximum baud rate of 1Mbps; enables online debugging or data monitoring among USB, serial port, and Bluetooth interfaces CH9143 is a BLE/UART/USB three-way chip that enables data transmission among Bluetooth, USB interfaces and serial interfaces. The serial port supports AT command configuration and MODEM communication signals, with a maximum baud rate of 1Mbps. At the same time, it can realize online debugging or data monitoring among the computer's USB interface, serial port and Bluetooth. Color: As Shown Material: PC Package Contents: 1*module kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.