The main function of this product is to replace the traditional serial communication cable and convert the wired serial connection into a wireless Bluetooth connection, thereby realizing wireless serial communication. This product can be connected to various devices with standard RS232 serial ports through the DB9 interface, and can perform wireless serial communication with various Bluetooth master devices such as desktop computers, notebook computers, smart phones, and tablet computers that support Bluetooth communication.
It can be directly connected to the widely used female serial port device, and can also be connected to the male serial port device through the matching DB9 adapter.
Built-in lithium battery and charging circuit, can be used in places without external power supply, and can also be used with external power supply.
The serial port has a byte of data passing through, whether it is sent or received, the serial port data indicator will flash once. If there is continuous data transmission, it will be on for a long time.
It supports the power supply of the ninth pin of the DB9 serial port, as long as the ninth pin is connected to a 3V-6V power supply, and the fifth pin is grounded, it can work normally.
Bluetooth dual-mode, supports two Bluetooth standards, Classic Bluetooth and Bluetooth Low Energy.
It can be connected to the computer through the traditional Bluetooth SPP protocol (Serial Port Profile), and can also be connected to the mobile phone through the Bluetooth BLE protocol, but it cannot be connected to the computer and the mobile phone at the same time.
Connect to the serial port of the computer, send AT commands from the computer to the adapter, and query or set the parameters of various adapters.
Specifications
Bluetooth protocol: Bluetooth V2.1(SPP) + Bluetooth V4.0(BLE)
Transmit power: 3dBm
Receive sensitivity: -90dBm
Optional serial port baud rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
Bluetooth BLE serial communication characteristic value: 0000ffe1-0000-1000-8000-00805f9b34fb
Typical communication distance: 30 meters
Working temperature -10℃-55℃
Typical operating current: 22mA
Dimensions and weight: 78x34x16mm, 38g