CN205376015U - Electronic chest card - Google Patents
Electronic chest card Download PDFInfo
- Publication number
- CN205376015U CN205376015U CN201521110129.4U CN201521110129U CN205376015U CN 205376015 U CN205376015 U CN 205376015U CN 201521110129 U CN201521110129 U CN 201521110129U CN 205376015 U CN205376015 U CN 205376015U
- Authority
- CN
- China
- Prior art keywords
- display
- chip microcomputer
- screen
- content
- computer end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
Provided is an electronic chest card, by the triplex: the singlechip, screen display, PC host computer end, the singlechip is connected to PC host computer end, the screen display is connected to the singlechip, STC89C52 is chooseed for use to the singlechip, and screen display driver selects 74HC138, the 1632LED dot matrix is chooseed for use to the display screen. The utility model discloses an electronic chest card, the control flow is comparatively simple, can show predetermined chinese character, english, numeral and pattern, can realize that the circulation shows, can realize showing shifting up, moving down, moving to left and moving to right of content, can realize that the PC terminal pair shows the control of content. (B, )
Description
Technical field
This utility model relates to a kind of chest card, particularly relates to a kind of electronic breast card.
Background technology
The application in our life and work of the LED dot matrix electronic display has highly important meaning.It can show the information such as the numeral of change, word, graph image.The such as brightness of its advantage is high, power consumption is little, running voltage is low, volume is little, life-span length, resistance to impact and stability is so as in widespread attention and develop rapidly.Traditional LED display is controlled the restriction in disposal ability, and memory capacity is very limited, and motility is not high, and can not upgrade in time the display content in electrical screen.
Fast development along with the extensively universal of microcomputer and serial port communication technology, the data-handling capacity that computer is powerful can be given full play to, utilize Windows Messenger module that process data are real-time transmitted to singlechip microcontroller, while reducing hardware development cost, too increase the motility of software.And this utility model is made that based on the Chinese character of PC, numeral and graphic LED design of LED.Energy supply control module, display module, driving module, ISP module are individually designed and built connection, finally controls module again through single-chip microcomputer STC89C52 and combine, common coordinated operation, it is achieved function.
Utility model content
The purpose of this utility model is in that to provide one can circulate preset in display single-chip microcomputer and the electronic breast card that control flow is relatively simple.
The purpose of this utility model is achieved through the following technical solutions:
A kind of electronic breast card, is made up of three parts: single-chip microcomputer, and screen shows, PC upper computer end；Described PC upper computer end connects single-chip microcomputer, and described single-chip microcomputer connects screen and shows；STC89C52 selected by described single-chip microcomputer, and screen display drives and selects 74HC138；Described display screen selects 16*32LED dot matrix.
Described PC upper computer end is connected with single-chip microcomputer by serial port protocol, and single-chip microcomputer accepts the instruction that upper computer end sends, and sends instruction according to instruction to screen display driver, makes the information that display screen display requires.
Each I/O port of described single-chip microcomputer and the annexation of hardware circuit: P2.4 mouth connects the A0 mouth of 74HC138, P2.3 mouth connects the A1 mouth of 74HC138, and P2.2 mouth connects the A2 mouth of 74HC138；P2.1 mouth connects, P2.0 mouth meets OE1；P3.0 mouth connects RXD, the P3.1 mouth of ISP download circuit module and meets the TXD of ISP download circuit module；P3.3 mouth controls the RCK end of 74HC595；P3.4 mouth controls the CLK end of 74HC595；P3.5 connects key circuit module button 4, P3.6 and connects key circuit module button 3, P3.7 and connect key circuit module button 2.
The idiographic flow of its work is: after system electrification, and LED display starts the cycle over reserved content in display single-chip microcomputer, is first Chinese character content, next to that digital content and English content, is finally pattern content, circulates display in order；Pressing reset key during circulation display, display content restarts circulation display；During circulation display, by upper shifting button, all display contents are circulated display by the lower to upper part of LED display；By moving down button, all display contents are by the top lower portion circulation display of LED display；By moving to left button, all display contents are circulated display to the left by the right side of LED display；By moving to right button, all display contents are circulated display to the right by the left side of LED display；After system is connected with PC, need the content of display in the input of PC end, LED display will reveal whether need the content of display.
The beneficial effects of the utility model: a kind of electronic breast card of the present utility model, control flow is relatively simple, it is possible to show predetermined Chinese character, English, numeral and pattern；It is capable of circulation display；It is capable of the upper shifting of display content, moves down, move to left and move to right；It is capable of the control to display content of the PC end.
Accompanying drawing explanation
Fig. 1 is middle body design structure diagram；
Fig. 2 is slave computer control flow chart；
Fig. 3 is host computer design structure diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Embodiment 1
As it can be seen, a kind of electronic breast card, being made up of three parts: single-chip microcomputer, screen shows, PC upper computer end；Described PC upper computer end connects single-chip microcomputer, and described single-chip microcomputer connects screen and shows；STC89C52 selected by described single-chip microcomputer, and screen display drives and selects 74HC138；Described display screen selects 16*32LED dot matrix.
Embodiment 2
Described PC upper computer end is connected with single-chip microcomputer by serial port protocol, and single-chip microcomputer accepts the instruction that upper computer end sends, and sends instruction according to instruction to screen display driver, makes the information that display screen display requires.
Embodiment 3
Each I/O port of described single-chip microcomputer and the annexation of hardware circuit: P2.4 mouth connects the A0 mouth of 74HC138, P2.3 mouth connects the A1 mouth of 74HC138, and P2.2 mouth connects the A2 mouth of 74HC138；P2.1 mouth connects, P2.0 mouth meets OE1；P3.0 mouth connects RXD, the P3.1 mouth of ISP download circuit module and meets the TXD of ISP download circuit module；P3.3 mouth controls the RCK end of 74HC595；P3.4 mouth controls the CLK end of 74HC595；P3.5 connects key circuit module button 4, P3.6 and connects key circuit module button 3, P3.7 and connect key circuit module button 2.
Embodiment 4
The idiographic flow of its work is: after system electrification, and LED display starts the cycle over reserved content in display single-chip microcomputer, is first Chinese character content, next to that digital content and English content, is finally pattern content, circulates display in order；Pressing reset key during circulation display, display content restarts circulation display；During circulation display, by upper shifting button, all display contents are circulated display by the lower to upper part of LED display；By moving down button, all display contents are by the top lower portion circulation display of LED display；By moving to left button, all display contents are circulated display to the left by the right side of LED display；By moving to right button, all display contents are circulated display to the right by the left side of LED display；After system is connected with PC, need the content of display in the input of PC end, LED display will reveal whether need the content of display.
Claims (2)
1. an electronic breast card, it is characterised in that: being made up of three parts: single-chip microcomputer, screen shows, PC upper computer end；Described PC upper computer end connects single-chip microcomputer, and described single-chip microcomputer connects screen and shows；STC89C52 selected by described single-chip microcomputer, and screen display drives and selects 74HC138；Described display screen selects 16*32LED dot matrix.
2. a kind of electronic breast card according to claim 1, it is characterized in that: described PC upper computer end is connected with single-chip microcomputer by serial port protocol, single-chip microcomputer accepts the instruction that upper computer end sends, and sends instruction according to instruction to screen display driver, makes the information that display screen display requires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521110129.4U CN205376015U (en) | 2015-12-29 | 2015-12-29 | Electronic chest card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521110129.4U CN205376015U (en) | 2015-12-29 | 2015-12-29 | Electronic chest card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205376015U true CN205376015U (en) | 2016-07-06 |
Family
ID=56257447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521110129.4U Expired - Fee Related CN205376015U (en) | 2015-12-29 | 2015-12-29 | Electronic chest card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205376015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448203A (en) * | 2015-12-29 | 2016-03-30 | 哈尔滨恒誉名翔科技有限公司 | Electronic name card |
-
2015
- 2015-12-29 CN CN201521110129.4U patent/CN205376015U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448203A (en) * | 2015-12-29 | 2016-03-30 | 哈尔滨恒誉名翔科技有限公司 | Electronic name card |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20211229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |