CN209086881U - A kind of touch calibration trigger device - Google Patents
A kind of touch calibration trigger device Download PDFInfo
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- CN209086881U CN209086881U CN201821460881.5U CN201821460881U CN209086881U CN 209086881 U CN209086881 U CN 209086881U CN 201821460881 U CN201821460881 U CN 201821460881U CN 209086881 U CN209086881 U CN 209086881U
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- microswitch
- parallel
- trigger device
- resistor
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Abstract
The utility model discloses a kind of touches to calibrate trigger device, include: microswitch sw2(1) and pull-up resistor (2), the filter capacitor (5) of 10nf, current-limiting resistance (3) and protection MCU(4), wherein, route 1, route 2, route 3, route 4 passes through microswitch sw2(1) connection, route 3 is in parallel with route 4, route 3 is equipped on filter capacitor (5) and route 3, capacitor (5) is in parallel with ground line (6), microswitch sw2(1 on route) it is in parallel with route 3, microswitch sw2(1) with connect between the power supply 3.3v pull-up resistor (2), on circuit 4 with the tie point of route 3 and protection MCU(4) between connect the current-limiting resistance (3).
Description
Technical field
The utility model relates to a kind of touches to calibrate trigger device.
Background technique
Currently, touch screen needs to calibrate in use, but work as touch point and move swiftly not on time, is difficult to click through calibration journey
Sequence starting calibration, if calibration icon possibly can not start calibration procedure in corner.
Utility model content
The purpose of the invention of the present invention is to provide a kind of touches to calibrate trigger device.
It is as follows that the utility model solves the technical solution that above-mentioned technical problem is taken:
A kind of touch calibration trigger device, comprising: microswitch sw2(1) and pull-up resistor (2), the filter capacitor of 10nf
(5), current-limiting resistance (3) and protection MCU(4), wherein route 1, route 2, route 3, route 4 pass through microswitch sw2(1) even
It connects, route 3 is in parallel with route 4, and route 3 is equipped on filter capacitor (5) and route 3, and capacitor (5) is in parallel with ground line (6), line
The microswitch sw2(1 of road), microswitch sw2(1 in parallel with route 3) with the pull-up resistor of connecting between power supply 3.3v
(2), on circuit 4 with the tie point of route 3 and protection MCU(4) between connect the current-limiting resistance (3).
When wherein, under microswitch sw2(1) does not connect, MCU(4 is protected) by pull-up resistor drawing to high level, SW2 connects down
When, protect MCU(4) by SW2 drawing to low level, MCU enters touch calibration procedure.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages can pass through
Structure specifically indicated in the written description, claims, and drawings is achieved and obtained.
Detailed description of the invention
The utility model is described in detail with reference to the accompanying drawing, so that the above-mentioned advantage of the utility model is more
It is clear.
Fig. 1 is the structural schematic diagram that the utility model touches calibration trigger device；
Fig. 2 is the structural schematic diagram that the utility model touches calibration trigger device.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.
As illustrated in fig. 1 and 2, trigger device is calibrated in a kind of touch, comprising: microswitch sw2(1) and pull-up resistor (2),
Filter capacitor (5), current-limiting resistance (3) and the protection MCU(4 of 10nf), wherein route 1, route 2, route 3, route 4 pass through micro-
Dynamic switch sw2(1) connection, route 3 is in parallel with route 4, route 3 equipped on filter capacitor (5) and route 3, capacitor (5) with connect
Ground wire (6) is in parallel, the microswitch sw2(1 on route), microswitch sw2(1 in parallel with route 3) and power supply 3.3v between go here and there
Join the pull-up resistor (2), on circuit 4 with the tie point of route 3 and protection MCU(4) between connect the current-limiting resistance (3).
When wherein, under microswitch sw2(1) does not connect, MCU(4 is protected) by pull-up resistor drawing to high level, SW2 connects down
When, protect MCU(4) by SW2 drawing to low level, MCU enters touch calibration procedure.
When wherein, under microswitch sw2(1) does not connect, MCU(4 is protected) by pull-up resistor drawing to high level, SW2 connects down
When, protect MCU(4) by SW2 drawing to low level, MCU enters touch calibration procedure.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (1)
1. trigger device is calibrated in a kind of touch characterized by comprising microswitch sw2(1) and pull-up resistor (2), 10nf's
Filter capacitor (5), current-limiting resistance (3) and protection MCU(4), wherein route 1, route 2, route 3, route 4 pass through microswitch
Sw2(1 it) connects, route 3 is in parallel with route 4, and route 3 is equipped on filter capacitor (5) and route 3, capacitor (5) and ground line
(6) microswitch sw2(1 in parallel, on route), microswitch sw2(1 in parallel with route 3) with institute of connecting between power supply 3.3v
State pull-up resistor (2), on circuit 4 with the tie point of route 3 and protection MCU(4) between connect the current-limiting resistance (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821460881.5U CN209086881U (en) | 2018-09-07 | 2018-09-07 | A kind of touch calibration trigger device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821460881.5U CN209086881U (en) | 2018-09-07 | 2018-09-07 | A kind of touch calibration trigger device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209086881U true CN209086881U (en) | 2019-07-09 |
Family
ID=67115960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821460881.5U Active CN209086881U (en) | 2018-09-07 | 2018-09-07 | A kind of touch calibration trigger device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209086881U (en) |
-
2018
- 2018-09-07 CN CN201821460881.5U patent/CN209086881U/en active Active
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