CN203433778U

CN203433778U - LED lattice screen display system based on bluetooth

Info

Publication number: CN203433778U
Application number: CN201320509010.9U
Authority: CN
Inventors: 卢超
Original assignee: Shaanxi University of Technology
Current assignee: Shaanxi University of Technology
Priority date: 2013-08-21
Filing date: 2013-08-21
Publication date: 2014-02-12
Anticipated expiration: 2023-08-21

Abstract

The utility model discloses an LED lattice screen display system based on bluetooth. The system comprises a microprocessor, a storage module, a button module, a work stock module, a bluetooth module, a USB interface, a drive circuit, and an LED lattice screen. The storage module, the button module, the work stock module, the bluetooth module, and the USB interface are connected with the microprocessor. The microprocessor is connected with the LED lattice screen through the drive circuit. The microprocessor can communicate with a PC machine through the USB interface, and can also communicate with the PC machine through the bluetooth module in a wireless manner. The microprocessor communicates with mobile phones through the bluetooth module. The system uses the bluetooth technology in wireless communication, and mobile phones can directly control the LED lattice screen and updates display contents. The system is suitable to be used in all applications of conventional LED display screens, and interfaces of the system is friendly, operation is simple, cost is low, and the system has very good popularization value and application prospect.

Description

LED dot matrix screen display system based on bluetooth

Technical field

The utility model relates to a kind of LED dot matrix screen display system, is a kind of LED dot matrix screen display system based on bluetooth specifically.

Background technology

LED shows to have the features such as picture brightness is high, contrast is large, bright in luster, has been widely used in public place, traffic main artery that flow of the people is many.In actual applications, particularly, in a large amount of displaying contents of needs real-time update, utilize single-chip microcomputer to connect host computer, revise displaying contents in software, its process is loaded down with trivial details, is not easy to user and uses.In recent years rapidly, bluetooth has obtained application more and more widely as a kind of support equipment in short haul connection in wireless data transmission technology development, and it replaces traditional wire cable to connect, and transplantability is more widely applicable, and security is higher, and range of application is wide.

For excellent, the shortcoming with upper type, design a kind of content update convenient, can expand, the some matrix LED words display screen of low price, adopt blue-teeth data transfer function to carry out the renewal of LED displaying contents, remove the cost of professional upper computer software and control card from, operate also simplyr, this is being designed with important actual promotional value and Research Significance.

Summary of the invention

The technical problems to be solved in the utility model is: a kind of LED dot matrix screen display system based on bluetooth is provided, can upgrades real-time and easily displaying contents.

To achieve these goals, the technical solution adopted in the utility model is: the LED dot matrix screen display system based on bluetooth, comprise microprocessor, memory module, key-press module, character base module, bluetooth module, USB interface, driving circuit and LED dot matrix screen, described memory module, key-press module, character base module, bluetooth module, USB interface is all connected with microprocessor, described microprocessor is connected with LED dot matrix screen by driving circuit, described microprocessor can be communicated by letter with PC by USB interface, also can be by bluetooth module and PC radio communication, described microprocessor is communicated by letter with mobile phone wireless by bluetooth module.

As preferably, memory module is I ²the EEPROM of C bus.

As preferably, character base module is standard Chinese character word-base chip.

As preferably, bluetooth module is serial ports bluetooth module.

Compared with prior art, the utility model has the advantage of: utilize Bluetooth technology radio communication, available handsets is directly controlled LED dot matrix screen and is upgraded displaying contents, be applicable to the application scenario of all traditional LED display, its friendly interface, easy and simple to handle, cheap, there is good promotional value and application prospect.

accompanying drawing explanation:

Fig. 1 is the structural representation of the LED dot matrix screen display system based on bluetooth described in the utility model;

Fig. 2 is bluetooth module connecting circuit described in the utility model;

Fig. 3 is character base module connecting circuit described in the utility model.

embodiment:

Below in conjunction with drawings and Examples, the utility model is further illustrated.The present embodiment is only the description to the utility model embodiment, scope of the present utility model is not had to any restriction.

The utility model comprises microprocessor, memory module, key-press module, character base module, bluetooth module, USB interface, driving circuit and LED dot matrix screen, described memory module, key-press module, character base module, bluetooth module, USB interface are all connected with microprocessor, described microprocessor is connected with LED dot matrix screen by driving circuit, described microprocessor can be communicated by letter with PC by USB interface, also can be by bluetooth module and PC radio communication, described microprocessor is communicated by letter with mobile phone wireless by bluetooth module.Memory module is I ²the EEPROM of C bus.Character base module is standard Chinese character word-base chip.Bluetooth module is serial ports bluetooth module.

Preferably, described microprocessor is selected STC12C5A60S2 single-chip microcomputer, and described bluetooth module is selected BLK-MD-BC04-B bluetooth module, and acp chip is BlueCore4-Ext chip, and described memory module is selected I ²the EEPROM storage chip AT24C512 of C bus, described character base module selection standard Hanzi font library chip GT23H32S4W.

LED dot matrix screen display system can be used for showing numeral, English alphabet and Chinese character.During use, open after the power switch and control system switch of LED dot matrix screen, control panel pilot lamp is bright, and display screen should show the content that preserved last time.The flicker of bluetooth module pilot lamp, represents that bluetooth module waiting facilities is attached thereto pairing.Be now that available handsets or upper computer software match with it.The step that mobile phone connects is: opening Bluetooth of mobile phone, open software " bluetooth serial ports assistant ", click " connection ", find the blue-tooth device of " BOLUTEK " by name and be attached thereto, is that available handsets is controlled LED dot matrix screen after the successful connection of input pairing code.The form that sends instruction is " the content >+ENTER+ZT1SX1FMBC that < need to show ", wherein ENTER is carriage return, ZT is font (can be ZT1 (15*16)/ZT2 (32*32)/default (acquiescence ZT1)), SX is move mode: can be set to SX1, move up and down fast; SX2, moves up and down slow; ZY1, moves left and right soon, and ZY2 moves left and right slow.FM is for showing radix-minus-one complement (defaulting to normal demonstration), and BC is for preserving displaying contents (default to and do not preserve).

Described bluetooth module connecting circuit is as shown in Figure 2: TXD is connected with P3.1 with the P3.0 of STC12C5A60S2 single-chip microcomputer respectively with RXD, bus mode is serial mode, after connection, only transmission content need to be write to SBUF and will complete transmission task, while receiving data, equally only need from SBUF, read out data.

Described character base module connecting circuit is as shown in Figure 3: GT23H32S4W is a Chinese character memory chip that includes 11 * 12 dot matrix, 15 * 16 point, 24 * 24 dot matrix, 32X32 dot matrix, supports GB2312 GB Chinese character and SCII character.Utilize the method that handbook provides to calculate the address of this character pattern in chip, can read continuously character lattice information from this address.Wherein CS, SI, SO, SCLK are connected with P1.4, P1.5, P1.6, the P1.7 mouth of single-chip microcomputer respectively, and bus mode is SPI serial bus interface.

Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, the in the situation that General Principle as defined herein can be within not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be limited to these embodiment shown in this article, but will accord with principle disclosed herein and features of novelty the widest consistent scope.

Claims

1. the LED dot matrix screen display system based on bluetooth, comprise microprocessor, memory module, key-press module, character base module, bluetooth module, USB interface, driving circuit and LED dot matrix screen, described memory module, key-press module, character base module, bluetooth module, USB interface are all connected with microprocessor, described microprocessor is connected with LED dot matrix screen by driving circuit, described microprocessor can be communicated by letter with PC by USB interface, also can be by bluetooth module and PC radio communication, described microprocessor is communicated by letter with mobile phone wireless by bluetooth module.

2. the LED dot matrix screen display system based on bluetooth according to claim 1, is characterized in that: described memory module is I ²the EEPROM of C bus.

3. the LED dot matrix screen display system based on bluetooth according to claim 1, is characterized in that: described character base module is standard Chinese character word-base chip.

4. the LED dot matrix screen display system based on bluetooth according to claim 1, is characterized in that: described bluetooth module is serial ports bluetooth module.