CN203573260U - 2.4G wireless mouse for achieving multiple keys through IO - Google Patents
2.4G wireless mouse for achieving multiple keys through IO Download PDFInfo
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- CN203573260U CN203573260U CN201320534553.6U CN201320534553U CN203573260U CN 203573260 U CN203573260 U CN 203573260U CN 201320534553 U CN201320534553 U CN 201320534553U CN 203573260 U CN203573260 U CN 203573260U
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- button
- wireless mouse
- interface
- keys
- mcu
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Abstract
The utility model discloses a 2.4G wireless mouse for achieving multiple keys through an IO. The 2.4G wireless mouse comprises an MCU, an RF chip, the keys and a basic circuit module, the RF chip is connected with the MCU, one ends of the keys are connected together and are connected with an IO interface of the MCU, the other ends of the keys are in ground connection after being respectively connected with a resistor in series, the ends, connected with the IO interface, of the keys are connected with the resistor in series and are connected with a direct-current power supply, and the ends, connected with the IO interface, of the keys are connected with a capacitor in series and are in ground connection. The 2.4G wireless mouse for achieving the keys through the IO has the advantages that the keys are controlled through the IO, and the use ratio of resources is high; the circuit structure is simple, the keys can be expanded, and the wireless mouse with the keys is achieved.
Description
Technical field
The utility model relates to a kind of wireless mouse, is specifically related to a kind of 2.4G wireless mouse that uses 1 IO to realize all buttons.
Background technology
Along with popularizing of computer, as the indispensable input equipment of computer---mouse, become apparatus too busy to get away in people's routine office work.What now people used is all generally wire mouse, with data line, connects mouse, although can plug and play, under many circumstances still can be very inconvenient, operate very dumb.
Along with the development of wireless technology, wireless mouse becomes more people's selection gradually, as Chinese invention patent CN1310378 (application number is 01100419.3) discloses a kind of wireless mouse system, its structure mainly comprises a wireless mouse and a received block, received block can be inserted in the USB interface of host computer, wireless mouse to coordinate again, can complete rapidly the linking while using.
As shown in Figure 1, existing wireless mouse is all that each button of mouse (left button, right button and middle key are directly connected on the I/O mouth of MCU) is many to taking of I/O mouth resource like this, if the function development of mouse in the future, need to there is more button, the for example mouse with full keyboard function of a lot of patent imaginations, I/O mouth resource can cannot meet.
Therefore study one and can effectively utilize I/O mouth resource, use the wireless mouse of the existing multiple buttons of an I/O cause for gossip to seem very necessary.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of wireless mouse, can use the existing multiple keypress functions of an I/O cause for gossip.
In order to solve above technical matters, the utility model provides a kind of 2.4G wireless mouse that uses 1 IO to realize multiple buttons, comprise a MCU, a RF chip, multiple buttons and tandem circuit module, described RF chip is connected with described MCU, one end of described each button all links together and is connected with an IO interface of described MCU, the other end of described each button connect with a resistance respectively after ground connection, after the resistance of one end series connection that described each button is connected with IO interface, be connected with direct supply, ground connection after the electric capacity of one end series connection that described each button is connected with IO interface.
Preferably, 1 IO of use of the present utility model realizes the 2.4G wireless mouse of multiple buttons, and described multiple buttons comprise: left button, middle key and right button.
Further, 1 IO of use of the present utility model realizes the 2.4G wireless mouse of multiple buttons, after the resistance that one end resistance of series connection that described each button is connected with IO interface is 10k Ω, is connected with the direct supply of 3 volts.
Further, 1 IO of use of the present utility model realizes the 2.4G wireless mouse of multiple buttons, described left button, middle key and right button are connected respectively after the resistance of a 10k Ω, 4.7k Ω and 2k Ω and described Capacitance parallel connection, one end of described parallel circuit is connected with an IO interface of described MCU, other end ground connection.
Preferably, 1 IO of use of the present utility model realizes the 2.4G wireless mouse of multiple buttons, and one end that described each button links together is connected with an IO interface of described MCU through an AD modular converter.
1 IO of use of the present utility model realizes the 2.4G wireless mouse of multiple buttons, has the following advantages:
1, adopt the control of the multiple buttons of IO Interface realization, resource utilization is high;
2, circuit structure is simple, and button can be expanded, and realizes the wireless mouse of many buttons.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the control circuit schematic diagram of the multiple IO interface of existing use button;
Fig. 2 is the circuit diagram that 1 IO of use of the present utility model realizes the 2.4G wireless mouse of multiple buttons.
Embodiment
Embodiment mono-
As shown in Figure 2, 1 IO of use of the present utility model realizes the 2.4G wireless mouse of multiple buttons, comprise a MCU, a RF chip, multiple buttons (are three buttons shown in figure: left button, middle key and right button) and tandem circuit module, described RF chip is connected with described MCU, for push button signalling is sent to outside by wireless mode, one end of described each button all links together and is connected with an IO interface of described MCU, the other end of described each button connect with a resistance respectively after ground connection (left button as shown in FIG., middle key and the right button 10k Ω that connects respectively, the resistance of 4.7k Ω and 2k Ω), after the resistance of the 10k Ω of one end series connection that described each button is connected with IO interface, be connected with the direct supply of 3 volts, ground connection after the electric capacity of one end series connection that described each button is connected with IO interface.
According to circuit shown in figure, the voltage of each button is as shown in the table:
Preferably, 1 IO of use of the present utility model realizes the 2.4G wireless mouse of multiple buttons, and one end that described each button links together is connected with an IO interface of described MCU through an AD modular converter.According to the theoretical value shown in upper table, give each button regulation a suitable interval, make AD change the voltage of coming and occur that certain error also can detect.Because A/D conversion need to be put the time, thus when calculating mean value, sampling need to consider the overall time of A/D conversion, the timer the inside scanning button of 1ms, 8ms enters once to upgrade button, so precision can be averaged for 8 times and obtain by sampling.The like, when mouse has more button, we still can realize with same circuit mode increase button, as long as choose corresponding resistance value, just can realize.
1 IO of use of the present utility model realizes the 2.4G wireless mouse of multiple buttons, has the following advantages:
1, adopt the control of the multiple buttons of IO Interface realization, resource utilization is high;
2, circuit structure is simple, and button can be expanded, and realizes the wireless mouse of more buttons.
The above is preferred embodiment of the present utility model, is not limited to the utility model, to one skilled in the art, can have various modifications and variations.All in spirit and scope of the present utility model, any modification of making and be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a 2.4G wireless mouse that uses 1 IO to realize multiple buttons, it is characterized in that, comprise a MCU, RF chip, multiple button and a tandem circuit module, described RF chip is connected with described MCU, one end of described each button all links together and is connected with an IO interface of described MCU, the other end of described each button connect with a resistance respectively after ground connection, after the resistance of one end series connection that described each button is connected with IO interface, be connected ground connection after the electric capacity of one end series connection that described each button is connected with IO interface with direct supply.
2. 1 IO of use as claimed in claim 1 realizes the 2.4G wireless mouse of multiple buttons, it is characterized in that, described multiple buttons comprise: left button, middle key and right button.
3. 1 IO of use as claimed in claim 2 realizes the 2.4G wireless mouse of multiple buttons, it is characterized in that, after the resistance that one end resistance of series connection that described each button is connected with IO interface is 10k Ω, is connected with the direct supply of 3 volts.
4. 1 IO of use as claimed in claim 3 realizes the 2.4G wireless mouse of multiple buttons, it is characterized in that, described left button, middle key and right button are connected respectively after the resistance of a 10k Ω, 4.7k Ω and 2k Ω and described Capacitance parallel connection, one end of described parallel circuit is connected with an IO interface of described MCU, other end ground connection.
5. 1 IO of use as claimed in claim 1 realizes the 2.4G wireless mouse of multiple buttons, it is characterized in that, one end that described each button links together is connected with an IO interface of described MCU through an AD modular converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534553.6U CN203573260U (en) | 2013-08-23 | 2013-08-23 | 2.4G wireless mouse for achieving multiple keys through IO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534553.6U CN203573260U (en) | 2013-08-23 | 2013-08-23 | 2.4G wireless mouse for achieving multiple keys through IO |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203573260U true CN203573260U (en) | 2014-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320534553.6U Expired - Lifetime CN203573260U (en) | 2013-08-23 | 2013-08-23 | 2.4G wireless mouse for achieving multiple keys through IO |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203573260U (en) |
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2013
- 2013-08-23 CN CN201320534553.6U patent/CN203573260U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160918 Address after: Building A, No. 18 Wuxi Taihu international cancer science and Technology Park in Jiangsu province Wuxi City Road 214135 Zhenze Patentee after: NST TECHNOLOGY LIMITED Co.,Ltd. Address before: Xinghu street Suzhou Industrial Park in Jiangsu province 215123 No. 328 building 221 unit C-7 audree Patentee before: LinkSens Technology Inc. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |
|
| CX01 | Expiry of patent term |