20220728 Use the bluetooth on the computer and the bluetooth module HC-05 of Huicheng Technology to pair the bluetooth serial port transmission

20220728 Use the bluetooth on the computer and the bluetooth module HC-05 of Huicheng Technology to pair the bluetooth serial port transmission
2022/7/28 11:27

Computer: DELL Vostro 3888, WIN10 system
5. How to connect the Bluetooth module to the computer (effective in slave mode)
The following is an example of pairing with a computer with Bluetooth (WIN10 system):
1. First power on the bluetooth mode, then the LED flashes, click "Start"--"Settings"--"Devices"--"Bluetooth and other devices"--"Add Bluetooth or other devices" in the computer".

 

 

 

 

 

 

2. The system will search for Bluetooth devices, the default device name is "HC05" (you can modify the name by yourself), double-click or right-click to select "Add Bluetooth Device", and enter the pairing password (the default is "1234").

3. Click "Next". If the password is correct, the computer will establish a connection with the Bluetooth module. If the Bluetooth serial device has not been installed before, the system will automatically install the driver and generate a virtual serial port.

4. Open "This Computer" → "Management" → "Device Manager" → Ports (COM and LPT)
You can see 3 serial ports.
Silicon Labs CP210x USB to UART Bridge(COM3): This is USB to Serial
Standard Serial on Bluetooth Link (COM26): Bluetooth Serial
Standard Serial on Bluetooth Link (COM27): ThisCan not be used, Huicheng's FAE does not know what is the reason for this serial port.

Serial port debugging assistant, select the appropriate COM port, I can only choose COM26 here, which is the serial port operated by the computer after connection.
For example, here is COM26. When this port is opened, the LED of the Bluetooth module will change from fast flashing to double flashing.
At this time, you only need to use the Bluetooth module as a serial port with a fixed baud rate of the computer, but it is wireless.