CN202994283U - Electronic scale - Google Patents
Electronic scale Download PDFInfo
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- CN202994283U CN202994283U CN 201320000361 CN201320000361U CN202994283U CN 202994283 U CN202994283 U CN 202994283U CN 201320000361 CN201320000361 CN 201320000361 CN 201320000361 U CN201320000361 U CN 201320000361U CN 202994283 U CN202994283 U CN 202994283U
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- chip microcomputer
- pin
- keyswitch
- dot matrix
- battery
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Abstract
The utility model discloses an electronic scale which comprises a weighing sensor, an operation amplification chip, a 3.6V battery, button switches and resistors. The weighing sensor is respectively connected with the operation amplification chip, the battery and the resistors. The electronic scale further comprises a single-chip microcomputer with an analog-to-digital converter, and a 16*15 dual-color surface mounted LED dot matrix circuit. The single-chip microcomputer is respectively connected with the LED dot matrix circuit, the battery, the operation amplification chip, the button switches and the resistors. Analog signals obtained by the sensor are converted by the single-chip microcomputer into digital signals to control the 16*15 dual-color surface mounted LED dot matrix circuit to display a weighing value of the sensor. The weighing value is rich and bright in terms of display effects, and the display effects can be edited, modified, stored and re-displayed. The electronic scale is simple in structure, high in precision, low in price and good in visual effect, and an application scope of the electronic scale can be expanded.
Description
Technical field
The utility model relates to a kind of electronic scales, particularly relates to a kind of electronic scales of LOAD CELLS and 16x15 dual base color LED dot matrix circuit.
Background technology
The electronic scales of prior art, the value of weighing are to show with LCDs or LED charactron, and its display effect is dull, can not show and enrich dazzling effect, and display effect can not edit, revise.
Summary of the invention
The purpose of this utility model is, a kind of electronic scales is provided, this electronic scales obtains by LOAD CELLS the simulating signal of weighing, and it weighs simulating signal after operational amplifier amplifies, and the analog to digital converter by single-chip microcomputer inside changes it value of weighing of digital signal into.Described single-chip microcomputer is controlled its value of weighing of 16x15 dual base color paster LED dot matrix Circuit display with the value of weighing of digital signal, the display effect of this value of weighing is enriched dazzling, and display effect can also be edited, revises, stores, be reset, and this electronic balance structure is simple, precision is high, price is low, good visual effect.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of electronic scales, comprise, LOAD CELLS, operation amplifier chip, the battery of 3.6V, keyswitch, resistance, described LOAD CELLS is connected with described operation amplifier chip, described battery, resistance respectively, wherein, described electronic scales also comprises, with single-chip microcomputer, the 16x15 dual base color paster LED dot matrix circuit of analog to digital converter, described single-chip microcomputer is connected with described LED dot matrix circuit, described battery, described operation amplifier chip, keyswitch, resistance respectively; The analog-signal transitions that described single-chip microcomputer is used for described sensor is obtained is digital signal, controls described its value of weighing of LED dot matrix Circuit display.
Preferably, the model of described operation amplifier chip is LM358, and this operation amplifier chip is used for amplifying the simulating signal that described LOAD CELLS is obtained.
Preferably, described keyswitch is 4, and an end pin of described keyswitch is connected with described single-chip microcomputer, and the other end pin of described keyswitch is connected with described battery jointly, and described keyswitch is used for operating described electronic scales.
The beneficial effects of the utility model:
A kind of electronic scales, this electronic scales obtains by LOAD CELLS the simulating signal of weighing, and it weighs simulating signal after operational amplifier amplifies, and the analog to digital converter by single-chip microcomputer inside changes it value of weighing of digital signal into.Described single-chip microcomputer is controlled its value of weighing of 16x15 dual base color paster LED dot matrix Circuit display with the value of weighing of digital signal, the display effect of this value of weighing is enriched dazzling, and display effect can also be edited, revises, stores, be reset, and this electronic balance structure is simple, precision is high, price is low, good visual effect, can enlarge range of application.
Description of drawings
Fig. 1 is the circuit theory schematic diagram of a kind of electronic scales of the utility model.
Embodiment
In order to further illustrate principle of the present utility model and structure, now by reference to the accompanying drawings preferred embodiment of the present utility model is elaborated, yet described embodiment can not be used for limiting scope of patent protection of the present utility model only for furnishing an explanation and the use of explaining.
a kind of electronic scales as shown in Figure 1, comprise, LOAD CELLS 4, model is the operation amplifier chip 5 of LM358, voltage is the battery 3 of 3.6V, keyswitch K1, keyswitch K2, keyswitch K3, keyswitch K4, resistance R 1, variable resistor R2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, described LOAD CELLS 4 respectively with described operation amplifier chip 5, described battery 3, resistance R 2 connects, wherein, described electronic scales also comprises, single-chip microcomputer 1 with analog to digital converter, the red green dual base color paster LED dot matrix circuit 2 of 16x15, described single-chip microcomputer 1 respectively with described LED dot matrix circuit 2, described battery 3, described operation amplifier chip 5, keyswitch K1, keyswitch K2, keyswitch K3, keyswitch K4, resistance R 4, resistance R 6 connects, the analog-signal transitions of weighing that described single-chip microcomputer 1 is used for described LOAD CELLS 4 is obtained is the digital signal of weighing, and utilizes the described LED dot matrix of this Digital Signals of weighing circuit 2 to show its value of weighing.
The red green dual base color paster LED dot matrix circuit 2 of described 16x15, expression is the red green dual base color paster LED dot matrix that 16 row are taken advantage of 15 row, this LED dot matrix has 16x15x2=480 LED, that is to say in the red green dual base color paster LED dot matrix circuit 2 of described 16x15,240 red LED and 240 green LED are arranged.
The 56th pin to the 49 pins of described single-chip microcomputer 1 drive tie point X1 to X8 with the row of described LED dot matrix circuit 2 and are connected, and the 25th pin to the 32 pins of described single-chip microcomputer 1 drive tie point X9 to X16 with the row of described LED dot matrix circuit 2 and are connected; The 7th pin to the 1 pin of described single-chip microcomputer 1 drives tie point Y1 to Y7 with the red LED of described LED dot matrix circuit 2 row and is connected, the 64th pin to the 57 pins of described single-chip microcomputer 1 drive tie point Y8 to Y15 with the red LED of described LED dot matrix circuit 2 row and are connected, and the 22nd pin to the 8 pins of described single-chip microcomputer 1 drive tie point yy1 to yy15 with the green LED of described LED dot matrix circuit 2 row and are connected.
The 33rd pin of described single-chip microcomputer 1 is connected with the positive pole of described battery 3, and the 34th pin of described single-chip microcomputer 1 is connected with the negative pole of described battery 3; The 23rd pin of described single-chip microcomputer 1 is connected with an end pin of the 1st pin of described operation amplifier chip 5, resistance R 4, and the 42nd pin of described single-chip microcomputer 1 is connected with an end pin of the 7th pin of described operation amplifier chip 5, resistance R 6; The other end pin of this resistance R 6 is connected with the 6th pin of described operation amplifier chip 5, the 6th pin of described operation amplifier chip 5 also is connected with the 2nd pin of described operation amplifier chip 5 by resistance R 5, and the 2nd pin of this operation amplifier chip 5 also is connected with the 1st pin of this operation amplifier chip 5 by resistance R 4; The 23rd pin of described single-chip microcomputer 1, the 42nd pin can be under the supports of software, be arranged to the analog to digital conversion input pin, that is to say, the simulating signal of weighing on the 23rd pin of described single-chip microcomputer 1, the 42nd pin can change it into digital signal by the analog to digital converter of single-chip microcomputer 1 inside.
the 45th pin of described single-chip microcomputer 1, the 46th pin, the 47th pin, the 48th pin respectively with keyswitch K1, K2, K3, the end pin of K4 connects, keyswitch K1, K2, K3, the other end pin of K4 is connected with the negative pole of described battery 3 jointly, the negative pole of described battery 3 also respectively with the pin 4D of described LOAD CELLS 4, the 4th pin of described operation amplifier chip 5, one end pin of resistance R 3 connects, the other end pin of this resistance R 3 by variable resistor R2 respectively with the pin 4C of described LOAD CELLS 4, one end pin of resistance R 1 connects, the other end pin of this resistance R 1 is connected with the positive pole of described battery 3, the pin 4C of described LOAD CELLS 4 also is connected with the 5th pin of described operation amplifier chip 5, the positive pole of described battery 3 also is connected with the pin 4A of described LOAD CELLS 4, the 8th pin of described operation amplifier chip 5 respectively, and the 3rd pin of this operation amplifier chip 5 is connected with the pin 4B of described LOAD CELLS 4.
Preferably, the model of described operation amplifier chip 5 is LM358, and this operation amplifier chip 5 is used for amplifying the simulating signal that described LOAD CELLS 4 is obtained.
Preferably, described keyswitch is 4, they are keyswitch K1, K2, K3, K4, the end pin of described keyswitch K1, K2, K3, K4 is connected with the 45th pin, the 46th pin, the 47th pin, the 48th pin of described single-chip microcomputer 1 respectively, the other end pin of described keyswitch K1, K2, K3, K4 is connected with the negative pole of described battery 3 jointly, and described keyswitch K1, K2, K3, K4 are used for operating described electronic scales.
Described embodiment advantage and beneficial effect are, the electronic scales of this embodiment, obtain by LOAD CELLS the simulating signal of weighing, it weighs simulating signal after the operation amplifier chip that model is LM358 amplifies, and the analog to digital converter by single-chip microcomputer inside changes it value of weighing of digital signal into.Described single-chip microcomputer utilizes the value of weighing of digital signal to control red green its value of weighing of dual base color paster LED dot matrix Circuit display of 16x15, the display effect of this value of weighing is enriched dazzling, and display effect can also be edited, revises, stores, be reset, and this electronic balance structure is simple, precision is high, price is low, good visual effect, can enlarge range of application.
The just embodiment of this utility model described above; the various fleshes and bloods that illustrate not utility model are construed as limiting; the person of an ordinary skill in the technical field after having read instructions can to before described embodiment make an amendment or be out of shape, all should be considered as belonging to protection domain of the present utility model.
Claims (3)
1. electronic scales, comprise, LOAD CELLS, operation amplifier chip, the battery of 3.6V, keyswitch, resistance, described LOAD CELLS is connected with described operation amplifier chip, described battery, resistance respectively, it is characterized in that: described electronic scales also comprises, with single-chip microcomputer, the 16x15 dual base color paster LED dot matrix circuit of analog to digital converter, described single-chip microcomputer is connected with described LED dot matrix circuit, described battery, described operation amplifier chip, keyswitch, resistance respectively; The analog-signal transitions that described single-chip microcomputer is used for described sensor is obtained is digital signal, controls described its value of weighing of LED dot matrix Circuit display.
2. a kind of electronic scales according to claim 1, it is characterized in that: the model of described operation amplifier chip is LM358, this operation amplifier chip is used for amplifying the simulating signal that described LOAD CELLS is obtained.
3. a kind of electronic scales according to claim 1 and 2, it is characterized in that: described keyswitch is 4, one end pin of described keyswitch is connected with described single-chip microcomputer, and the other end pin of described keyswitch is connected with described battery jointly, and described keyswitch is used for operating described electronic scales.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320000361 CN202994283U (en) | 2013-01-02 | 2013-01-02 | Electronic scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320000361 CN202994283U (en) | 2013-01-02 | 2013-01-02 | Electronic scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994283U true CN202994283U (en) | 2013-06-12 |
Family
ID=48565455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320000361 Expired - Fee Related CN202994283U (en) | 2013-01-02 | 2013-01-02 | Electronic scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202994283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063283A (en) * | 2013-01-02 | 2013-04-24 | 管存忠 | Electronic scale |
-
2013
- 2013-01-02 CN CN 201320000361 patent/CN202994283U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063283A (en) * | 2013-01-02 | 2013-04-24 | 管存忠 | Electronic scale |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20140102 |