#bluetooth solution

BLE bluetooth module is a very popular wireless communication module, which is widely used in various smart devices. The main applications include: positioning tags, asset tracking, sports and fitness sensors, medical sensors, smart watches, remote controls, toys, etc. Briefly introduce some common BLE  bluetooth module applications.

BLE Bluetooth module: refers to the module supporting Bluetooth protocol 4.0 or higher, also known as BLE module (Bluetooh Low Energy Module), the biggest feature is the reduction of cost and power consumption, the application of higher real-time requirements, but the data rate Relatively low products, such as: remote control (mouse, keyboard), data transmission of sensing devices (heartbeat, sphygmomanometer, temperature sensor). A new feature added to Bluetooth low energy technology is the "broadcast" feature compared to traditional Bluetooth technology. With this feature, the slave can tell it that it needs to send data to the master.

Bluetooth module application field

1. Bluetooth light control solution

The Bluetooth light control solution is based on BLM World Limited  Bluetooth module HY-254101, which realizes the color control of the intelligent Bluetooth LED lights. We will provide: 1) product-level solutions; 2) hardware design support; 3) software design support; 4) APP design (including iOS and Android, third-party cooperation); 5) cloud platform support (third-party cooperation) .

Bluetooth light control scheme description: Bluetooth module on the mobile phone and the blue light on the lantern are paired, and the APP command is used to control the Bluetooth of the lantern to realize different functions. For example, the color and brightness can be adjusted through the swatch and the sound.

2.BLE Bluetooth Smart Lock Solution

The intelligent access control lock is based on the original access control system, adding a low-power Bluetooth transparent transmission module to realize the docking of the mobile phone Bluetooth protocol. The smart phone calls the Bluetooth service through the APP, sends an instruction, the smart access lock receives the Bluetooth command, and then controls the switch of the smart access lock.

Bluetooth Smart Lock Solution Description: The smart lock has a built-in BLE Bluetooth module HY-40R204. The mobile phone reads the smart lock Bluetooth information through the APP, tries to pair, and sends an unlock request to the server. The server sends an unlock command to the mobile phone, and the mobile phone receives the command. , then send the command to the smart lock through Bluetooth to unlock.

3. Bluetooth MAC address scanning printing solution

The MAC address scanning and printing solution is a complete solution including a Bluetooth MAC address reading device, a MAC address reading software, a MAC address management software, a two-dimensional code generation software, and a two-dimensional code printing driver.

Bluetooth MAC address scanning and printing solution description: Take the low-power Bluetooth module (such as BLE Bluetooth 4.2 module HY-40R204 ) as the host role, scan the peripheral devices, filter according to the broadcast name, and filter out the strongest peripheral signals. After obtaining the MAC address, the data is sent to the label printer through the serial port, and the label printer prints the two-dimensional code that meets the requirements.

The Bluetooth MAC address is printed in the form of a two-dimensional code, which is convenient for the Bluetooth product to read the Bluetooth MAC address, which can effectively improve work efficiency.

4. Bluetooth Mesh networking solution

The Bluetooth Mesh network is a new network topology for Bluetooth Low Energy (also known as Bluetooth LE) for establishing many-to-many (many) device communication. It allows you to create large networks based on multiple devices. The network can contain dozens, hundreds or even thousands of Bluetooth Mesh devices. These devices can exchange information with each other. Undoubtedly, such an application form is building automation. Wireless sensor networks, asset tracking and other solutions provide the ideal choice. With Bluetooth Mesh, smart homes have emerged with many new application possibilities.

Bluetooth Mesh networking solution description: BLE Bluetooth module of Bluetooth Mesh networking - HY-40R204. With Bluetooth Mesh, all the functions in the smart home system can be controlled simultaneously, easily and efficiently with just one control device. The powerful architecture of Bluetooth Mesh can also be extended to meet the needs of offices, factories, industrial environments and even cities, connecting millions of nodes without failure.

5. Bluetooth Beacon indoor positioning solution

Beacon is a broadcast protocol based on the low-power Bluetooth protocol, and it is also a low-power Bluetooth slave device with this protocol. The Beacon device is usually placed in a fixed position in the room and broadcasts a data packet to the surroundings at regular intervals. As an independent Bluetooth host, it will receive the data packets broadcast by Beacon at intervals when it is scanned. It can be used in supermarket products. Promotions are used to push promotional information or coupons to customers who walk into it, or to perform complex data calculations by receiving received signal strength indicator values (RSSI), MAC address resolution, etc., and then indoor positioning of customers.

Bluetooth Beacon indoor positioning solution description: Indoor positioning and Beacon technology, the Beacon node is placed in the appropriate position, and with the rich APP application, it can conveniently provide indoor location service for users.