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2022-09-23 17:22:28
CH9140
CH9140 is a Bluetooth to serial port chip, the chip supports Bluetooth master-slave integrated mode or slave mode, and supports Bluetooth BLE4.2. The serial port baud rate is up to 1Mbps, supports MODEM contact signal, and the Bluetooth master-slave mode can be automatically connected or bound.
The virtual serial port driver on the computer side is provided, so that the Bluetooth interface can directly use the serial port debugging tool and is compatible with serial port applications. It can communicate with the serial port interface without secondary development.
Features
Provide computer-side Bluetooth virtual serial port driver
Compatible with existing serial port software and tools, no need for secondary development
Support Windows/Linux/Android/iOS and other systems Bluetooth host connection
Support bluetooth master-slave integrated mode and slave mode
Bluetooth master-slave mode can automatically connect or bind
Support hardware configuration parameters
Transmission distance 100 meters
Transmission power adjustable in 8 gears
Power-down sleep current 0.3uA
Support 3.3V and 2.5V working voltage
Asynchronous serial port maximum communication baud rate 1Mbps
Serial port supports MODEM contact signals RTS, DTR, DCD, RI, DSR, CTS
The serial port supports odd, even, no parity, blank 0, flag 1 and other parity methods
Support to obtain chip power supply voltage parameters
32K clock source optional external crystal oscillator