CN207704640U - A kind of Bluetooth communication system based on Arduino - Google Patents

Abstract

The utility model discloses a bluetooth communication system based on Arduino, comprising a processor based on Arduino, the processor includes a temperature acquisition unit, a data transmission unit and a terminal display unit; The unit is connected, and the bluetooth transmission unit is connected with the terminal display unit. The utility model is based on the bluetooth communication system of Arduino, can utilize the design of bluetooth to transmit data wirelessly in real time and accurately, not only can save cost in a large range, but also improve production efficiency and work flexibility.

Description

A Bluetooth communication system based on Arduino

technical field

The utility model relates to the technical field of wireless communication, in particular to an Arduino-based bluetooth communication system.

Background technique

With the development of communication technology, whether it is in the Internet of Things or the Internet, the traditional wired transmission technology has become increasingly unable to meet the needs of enterprises and individuals. Today's communication technology is developing in the direction of "wireless" and "high speed". Wireless transmission has been favored by individuals and businesses for its unique advantages. In mobile terminals, wireless transmission technologies mainly include WIFI, NFC and so on. WIFI is a technology that can wirelessly communicate with terminals such as handheld devices and personal computers. WIFI is a wireless network communication technology standard, held by the Wi-Fi Alliance. NFC is Near Field Communication, that is, near-field wireless communication technology, which can perform short-range wireless communication between consumer electronics products, mobile terminals, PCs and smart tools (communication distance is generally within 10 cm). NFC provides a simple, Touch-enabled solutions for easy exchange of information, access to content and services. However, in the wireless data collection and transmission, the above-mentioned wireless transmission method still has the problems of insufficient operation and high cost.

Utility model content

The purpose of this utility model is to propose a kind of bluetooth communication system based on Arduino, to overcome the above-mentioned deficiency that exists in the prior art.

For realizing above-mentioned technical purpose, technical scheme of the present utility model is realized like this:

A kind of bluetooth communication system based on Arduino, comprises the processor based on Arduino, and described processor comprises temperature collection unit, data transmission unit and terminal display unit; Described data transmission unit is bluetooth transmission unit, and described temperature collection unit and bluetooth The transmission unit is connected, and the bluetooth transmission unit is connected with the terminal display unit.

Further, the bluetooth transmission unit includes a bluetooth detection module, a bluetooth connection module and a data transmission module connected in sequence; the bluetooth detection module is bidirectionally interconnected with the terminal display unit, and the data transmission module is connected with the terminal display unit.

Further, the terminal display unit is connected with a human-computer interaction unit.

Further, the human-computer interaction unit adopts a mobile phone display screen.

Beneficial effects of the utility model: the utility model is based on the bluetooth communication system of Arduino, which can use the bluetooth wireless transmission data design in real time and accurately, not only can save costs in a large range, but also improve production efficiency and work flexibility.

Description of drawings

Fig. 1 is a schematic structural diagram of the bluetooth communication system of the present invention.

Fig. 2 is a schematic structural diagram of the data transmission unit of the present invention.

As shown in the figure:

1-Temperature acquisition unit; 2-Data transmission unit; 3-Terminal display unit; 4-Processor; 5-Human-computer interaction unit; 6-Bluetooth detection module; 7-Bluetooth connection module; 8-Data transmission module.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, terms such as "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a It is a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Arduino is divided into two parts: Arduino hardware device and Android terminal software. The hardware device is based on the Arduino hardware platform, completes the design and implementation of the hardware platform and completes the program design of the hardware platform. The Android terminal software uses Android as a development platform and java as a development language to realize application development. Arduino is a simple i/o interface board based on open source USB interface (including 12-channel digital GPIO, 4-channel PWM output, 6-8 channel 10bitADC input channel), and has an IDE integrated development environment similar to java language, which can Quickly develop using the Arduino language.

Based on above-mentioned principle as shown in Figure 1, a kind of bluetooth communication system based on Arduino described according to the embodiment of the present utility model, comprises the processor 4 based on Arduino, and described processor 4 comprises temperature acquisition unit 1, data transmission unit 2 and a terminal display unit 3; the data transmission unit 2 is a Bluetooth transmission unit, the temperature acquisition unit 1 is connected to the Bluetooth transmission unit, and the Bluetooth transmission unit is connected to the terminal display unit 3.

In this embodiment, the processor 4 adopts the ARM chip of Massimo Banzi, the Arduino IDE development environment, and the human-computer interaction unit 5 adopts the mobile phone display screen.

Specifically, the temperature collection unit 1 is used to collect and store current indoor temperature data. This system selects DS18B20 digital temperature sensor to measure the ambient temperature quantitatively. The Arduino Xbee sensor expansion board communicates with the Arduino UNO main control board through the serial interface (Tx and Rx pins). The module is easy to use, consumes low power, and provides transfer of critical data between devices. The sensor expansion board does not require any configuration to establish RF communication. The module's default configuration supports a wide range of data system applications, and simple AT commands can also be used for advanced configuration. The specific technical specifications include expansion of 14 I/O ports, 6 AD Inputs, 1 digital port for external power supply port, and xbee/Bluetooth Bee Bluetooth wireless data transmission interface.

As shown in Figure 2, the Bluetooth transmission unit includes a Bluetooth detection module 6, a Bluetooth connection module 7 and a data transmission module 8 connected in sequence; the Bluetooth detection module 6 is bidirectionally interconnected with the terminal display unit 3, and the data transmission module 8 and the terminal display unit 3 connected; where: the bluetooth detection module 6 is used to search for paired bluetooth devices and determine whether they have been connected with the bluetooth devices. After the data acquisition terminal is started, search for the paired Bluetooth device to determine whether it has been connected to the Bluetooth device. After the device is started, use the Serial.begin(9600) method to open the serial communication, and set the serial port transmission rate to 9600. DallasTemperature: : The isValid() method is used to determine whether it has been connected to other Bluetooth devices. Among them, the bluetooth serial port module adopts DF-BluetoothV3 bluetooth module, which has two power input ports, wide voltage power supply (3.5V ~ 8V) and 3.3V power supply. In the module, the STATE and LINK indicators are used to display the working status and connection status of the module. The DIP switch can set the module status, LED OFF can turn off the LINK light to enter the power saving mode, AT Mode can make the module enter the AT command mode, the baud rate and the master-slave mode can be modified through the AT command, and the two modules are respectively set as After the master module and the slave module, the two modules can be freely paired for data transmission, which is suitable for data communication between two single-chip microcomputers;

Bluetooth connection module 7 is used to detect whether there is a paired bluetooth device by bluetooth detection module 6, if there is, then connect by bluetooth connection module 7; Continue to search for Bluetooth devices;

The data transmission module 8 is used to transmit the temperature data to the mobile phone terminal through the bluetooth chip. If the bluetooth device has been detected by the bluetooth detection module 6 and connected by the bluetooth connection module, then the data transmission module 8 will pass the temperature collected by the temperature detector to the mobile phone through the bluetooth chip, and pass the Dallas Temperature:: getTemperature () method Read the temperature data collected by the temperature detector in the register, and the Serial.print() method will convert the read data into ASCII codes and send them out through the serial port.

The terminal display unit 3 is used to receive the data transmitted by the data transmission unit via bluetooth, and display it on the interface of the mobile phone. The unit will receive and display temperature data by calling interface functions, including searching, pairing, and turning on Bluetooth devices. The BluetoothAdapter represents the local device's Bluetooth adapter and performs basic Bluetooth tasks such as initiating device discovery, querying a list of connected (paired) devices, instantiating a Bluetooth device with a known MAC address, and creating a BluetoothServerSocket to listen for incoming messages from other devices. Connection request; BluetoothDevice can establish a connection with a paired device or query related information, such as device name, device address, connection status, etc.

The user realizes operations such as turning on, turning off, and connecting the Bluetooth through the human-computer interaction unit 5, thereby completing the task of receiving temperature data.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (4)

1. a kind of Bluetooth communication system based on Arduino, it is characterised in that：Include the processor based on Arduino, the place It includes temperature collecting cell, data transmission unit and terminal diaplay unit to manage device；The data transmission unit is Bluetooth transmission list Member, the temperature collecting cell are connect with Bluetooth transmission unit, and the Bluetooth transmission unit is connect with terminal diaplay unit.

2. Bluetooth communication system according to claim 1, it is characterised in that：The Bluetooth transmission unit includes being sequentially connected Bluetooth detection module, bluetooth connection module and data transmission module；Bluetooth detection module and the two-way interconnection of terminal diaplay unit, Data transmission module is connected with terminal diaplay unit.

3. Bluetooth communication system according to claim 1, it is characterised in that：The terminal diaplay unit is connected with man-machine friendship Mutual unit.

4. Bluetooth communication system according to claim 3, it is characterised in that：The man-machine interaction unit is shown using mobile phone Screen.