How to use the Bluetooth module, Bluetooth module usage tutorial

Bluetooth module to achieve the function is inseparable from the program support, the Bluetooth module can only be regarded as a semi-finished product, at least your mobile phone must also have an APP program to operate. We have also done the program of Bluetooth remote control car, how to implement it according to the module, the pin packaging is different, and the functions of different modules are different, if you are just playing by yourself, at least you have to know more about Bluetooth.

The instructions for use are clearly written Bluetooth modules for surfing the Internet There are also wireless network card slots, you see if you have it on your notebook, most notebooks have it.

Before disassembling the internal components of your computer, read the safety instructions in the System Information Guide. 4 Disconnect the computer from the power outlet. 5 Wait 10 to 20 seconds, then disconnect all connected devices.

7 Flip the computer over, unscrew the set screws on the Bluetooth module cover, and remove the cover. b Disconnect the cable from the module. 9 Make sure the front of the Bluetooth module (silvery-white) is facing outwards and connect the cable to the module.

Yes, the four corners are plus or minus, and two serial lines. I've done this.,It's just a serial Bluetooth send.,It's not difficult to single-chip microcomputer.,The main thing is that there is not much information about the Android program about the Bluetooth book.,There are still a lot of them on the Internet.。

The following is a basic tutorial for using the Bluetooth module:1Hardware Connection:

Connect the TX port of the Bluetooth module to the RX port of the MCU, connect the RX port to the TX port of the MCU, connect the VCC terminal slag land port to the power supply, and connect the GND port to Software configuration: Create a new project in the MCU development environment and set the serial port parameters (such as baud rate, data bits, etc.) for communication with the Bluetooth module. Then, use the corresponding serial port transmission function to write the sending instruction and configure the Bluetooth module, such as setting the Bluetooth name, password, communication mode, etc.

Find the corresponding Bluetooth module, try to pair and connect. 4.Communication Test:

After the connection is successful, you can test the transmission and reception of data, such as sending a character to the Bluetooth module, and then receiving the corresponding character information on the mobile phone. In general, the tutorial on the use of Bluetooth is relatively simple, mainly through the serial port for configuration and communication, in order to transmit data with other devices (such as mobile phones, computers, etc.). It should be noted that when using the Bluetooth module, it is necessary to ensure that the communication parameters between the MCU and the Bluetooth module are consistent, otherwise data loss or abnormalities may occur.

It is hardware integrated into the circuit board of a mobile phone that can send and receive radio signals in specific bands of Bluetooth. Make electronic devices wirelessly connected.

Yes for Bluetooth devices.

, to make a Bluetooth connection and.

Data exchange. For example, with with.

Bluetooth function. mobile phone. Wireless Internet access is generally installed on a notebook with a wireless network card, and no Bluetooth module is required.

Who said it wasn't needed.

The Bluetooth module can be connected to mobile phones and other electronic devices that have Bluetooth.

It has nothing to do with Wi-Fi.

The name of the Bluetooth module is the name of the product model, and each company has a different way of naming it.

First of all, choose according to the distance. The Bluetooth transmission distance is 100 meters and 10 meters, respectively. It should be noted that the Bluetooth module of 10 meters generally has two installation methods: built-in and external.

100 meters is generally external, if the device is a plastic box, choose the built-in, if it is a metal box, the antenna should be external.

Today's manufacturers basically produce Bluetooth modules, and the modules below Bluetooth are basically no longer newly produced on the market. Above Bluetooth, it is generally nominal 100 meters, however, the connection of 100 meters may not be very stable, but it can be stable above 50 meters.

Secondly, it is necessary to consider power consumption, smart devices generally require low power consumption, so it is advisable to choose BLE modules.

Again, choose according to the characteristics of the transmission. Bluetooth technology enables the creation of products such as point-to-point connectivity, point-to-multipoint connectivity, and personal area networks. The Bluetooth encapsulation module can provide point-to-point and point-to-multipoint connection services;

Secondly, choose according to the content of the transfer. The Bluetooth module is capable of wirelessly transmitting data, voice messages, files, and other information. The file transmission module is mainly suitable for exhibitions, stations, hospitals, squares and other public places where the amount of information and materials can be released to the masses for free; Voice-embedded modules can transmit voice messages to each other.

Finally, the choice is based on the package form. There are three types of Bluetooth modules: in-line type, surface-mount type and serial port adapter. Today's smart devices pursue small size, generally using stamp surface sticker type, and the smaller the size, the better.

Finally, consider the master-slave relationship. The main module can actively search for and connect to other Bluetooth modules with the same or lower Bluetooth version level as itself; From the module is passive, waiting for someone else to search and connect, the Bluetooth version to be the same or higher than its own. The general smart devices on the market are selected from the module, and the main module is generally used in the mobile phone and other devices that can be used as the control center.

Finally, whether the built-in software is developed by the manufacturer itself.