BLE2U
2
Figure 2 Block diagram of serial communication between BLE host and USB host or UART device through
CH9143
Figure 3 Block diagram of serial communication between USB hosts through CH9143 in BLE master-slave
mode
2. Features
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Data transmission between BLE, USB, and UART.
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BLE supports slave mode, master mode and master-slave mode.
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Provides PC-side USB and BLE virtual serial port driver.
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Compatible with existing serial port software and tools, with no secondary development required.
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Supports BLE host connection in Windows/Linux/Android/iOS and other systems.
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2 serial port driver modes: Vendor driver mode and installation-free USB-CDC driver mode.
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100m BLE transmission distance.
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Adjustable 8 positions of BLE TX power.
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Supports 3.3V and 2.5V operating voltages.
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Supports BLE transmission configuration and serial AT command configuration.
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Asynchronous serial port default baud rate is 115200bps.
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Serial port supports MODEM signals: RTS, DTR, DCD, RI, DSR and CTS.
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Serial port supports 5/6/7/8 data bits and 1/2 stop bits.
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Serial port supports odd, even, no parity, space 0 and mark 1.
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Full-speed USB device interface, compatible with USB V2.0.
