CN208110290U - One kind being based on STM32 multifunctional intellectual reminiscences clock alarming circuit - Google Patents
One kind being based on STM32 multifunctional intellectual reminiscences clock alarming circuit Download PDFInfo
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- CN208110290U CN208110290U CN201820386850.3U CN201820386850U CN208110290U CN 208110290 U CN208110290 U CN 208110290U CN 201820386850 U CN201820386850 U CN 201820386850U CN 208110290 U CN208110290 U CN 208110290U
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- triode
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- resistance
- multifunctional intellectual
- alarming circuit
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Abstract
The utility model belongs to hardware circuit design field, discloses one kind based on STM32 multifunctional intellectual reminiscences clock alarming circuit, is provided with first resistor, second resistance, triode, buzzer, ground terminal；Described first resistor one end connects power supply, and the other end connects the base stage of second resistance and triode, and the emitter of the triode and the other end of second resistance connect ground terminal jointly, and the volume collector of the triode connects buzzer.The utility model compensates for the disadvantage of single-chip microcontroller pin driving capability difference, realizes driving of the single-chip microcontroller to buzzer using triode, and entire circuit design is simple, reliable performance, is swift in response and stability is strong.
Description
Technical field
The utility model belongs to hardware circuit design field, is reminded more particularly, to one kind based on STM32 multifunctional intellectual
Device clock alarming circuit.
Background technique
Currently, the prior art commonly used in the trade is such：
Currently, comparing spininess to the situation of taking medicine of old man for the terminal of prompting.Terminal is reminded to need using single-chip microcontroller, city
The most common single-chip microcontroller has that 8,16 and 32,8 and 16 single-chip microcontrollers are cheaper than 32 in price on face, but handles number
It is slow according to speed.If handling mass data, 8 or 16 single-chip microcontrollers are easy stuck, this is for electronic product
Fatal disadvantage.ARM be based on 32 single-chip microcontrollers develop, its advantage is that it is small in size, low in energy consumption, cheap, have excellent performance,
And a large amount of register has been internally integrated it.But single-chip microcontroller can not be realized by itself to bee due to the limitation of self-condition
The driving of ring device, it is therefore desirable to load peripheral circuit and realize driving.
In conclusion problem of the existing technology is：
Single-chip microcontroller can not realize the driving to buzzer, it is therefore desirable to load due to the limitation of self-condition by itself
Peripheral circuit realizes driving.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of based on STM32 multifunctional intellectual reminiscences
Clock alarming circuit.
STM32 multifunctional intellectual reminiscences clock alarming circuit is based on the utility model is realized in this way a kind of, first
Resistance one end connects single-chip microcontroller by printed line, and the other end is separately connected the base stage of second resistance and triode by printed line；Three poles
The emitter of pipe connect ground terminal with the second resistance other end jointly；The second resistance other end is easy to the end connecting with first resistor
Point；The collector of triode connects buzzer；The other end of buzzer and the DC power anode of 3.3V connect.
Further, the first resistor resistance value is 1k Ω.
Further, the second resistance resistance value is 10k Ω.
Further, the triode is NPN type.The clock alarming circuit model S8550, the single-chip microcontroller of connection are
STM32。
The advantages of the utility model and good effect are：
1) circuit compensates for the disadvantage of single-chip microcontroller pin driving capability difference.2) realize single-chip microcontroller to buzzing using triode
Driving is realized in the driving of device without loading peripheral circuit.3) entire circuit design is simple, reliable performance, is swift in response and surely
It is qualitative strong.
Detailed description of the invention
Fig. 1 is the structural representation provided by the utility model based on STM32 multifunctional intellectual reminiscences clock alarming circuit
Figure；
In figure：1, first resistor；2, second resistance；3, triode；4, buzzer；5, ground terminal.
Fig. 2 is the peripheral circuit provided by the utility model based on STM32 multifunctional intellectual reminiscences clock alarming circuit
Structural schematic diagram；
In figure：6, single-chip microcontroller (STM32 chip)；7, it is based on STM32 multifunctional intellectual reminiscences clock alarming circuit board.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain that this is practical new
Type is not used to limit the utility model.
The structure of the utility model is explained in detail with reference to the accompanying drawing.
As shown in Figures 1 and 2, provided by the embodiment of the utility model to be mentioned based on STM32 multifunctional intellectual reminiscences quarter-bell
Awake circuit is provided with first resistor 1, second resistance 2, triode 3, buzzer 4, ground terminal 5, single-chip microcontroller (STM32 chip) 6；The
One resistance 1, second resistance 2, triode 3, buzzer 4, ground terminal 5, single-chip microcontroller (STM32 chip) 6 are integrated in based on STM32
Multifunctional intellectual reminiscences clock alarming circuit board 7；
Described 1 one end of first resistor connects STM32 chip 6, and the other end connects the base stage of second resistance 2 and triode 3, institute
It states the emitter of triode 3 and the other end of second resistance 2 connect ground terminal jointly, the collector of the triode 3 connects bee
Ring device 5.
As the preferred embodiment of the utility model, 1 resistance value of first resistor is 1k Ω.
As the preferred embodiment of the utility model, 2 resistance value of second resistance is 10k Ω.
As the preferred embodiment of the utility model, the triode 3 uses NPN type.
As the preferred embodiment of the utility model, the clock alarming circuit model S8550, the single-chip microcontroller of connection is
STM32 chip 6.
The working principle and the course of work of the utility model be：
This is based on that STM32 multifunctional intellectual reminiscences clock alarming circuit is practical is divided into two circuits, wherein by STM32 core
Piece 6 arrives first resistor 1, then arrives the base stage of triode 3, finally reaches ground terminal 5, this access is input channel；Another access is
The power supply of 3.3V finally reaches ground terminal 5 to buzzer 4, then by the collector of 4 connecting triode 3 of buzzer, this circuit is work
Make circuit.STM32 chip 6 makes the base current of triode 3 work within allowed band by first resistor 1, to ensure three
Pole pipe and the reliability and stability of circuit work prevent from malfunctioning using 2 filtered noise signal of second resistance, when triode 3 is saturated
Afterwards, buzzer 4 is connected, realizes driving of the single-chip microcontroller to buzzer 4.
The above is only the preferred embodiment of the utility model, not imposes any restrictions to the utility model, all
According to any simple modification to the above embodiments of the utility model technical spirit, change and equivalent structural changes, still
Belong in the protection scope of technical solutions of the utility model.
Claims (4)
1. one kind is based on STM32 multifunctional intellectual reminiscences clock alarming circuit, which is characterized in that described to be based on the more function of STM32
First resistor one end of energy intelligent prompter clock alarming circuit connects single-chip microcontroller by printed line, and the other end is connected respectively by printed line
Connect the base stage of second resistance and triode；The emitter of triode connect ground terminal with the second resistance other end jointly；Second electricity
The endpoint that the resistance other end is easy to connect with first resistor；The collector of triode connects buzzer；The other end of buzzer and straight
Flow positive pole connection.
2. being based on STM32 multifunctional intellectual reminiscences clock alarming circuit as described in claim 1, which is characterized in that described the
One resistance is 1k Ω.
3. being based on STM32 multifunctional intellectual reminiscences clock alarming circuit as described in claim 1, which is characterized in that described the
Two resistances are 10k Ω.
4. being based on STM32 multifunctional intellectual reminiscences clock alarming circuit as described in claim 1, which is characterized in that described three
Pole pipe is NPN type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820386850.3U CN208110290U (en) | 2018-03-21 | 2018-03-21 | One kind being based on STM32 multifunctional intellectual reminiscences clock alarming circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820386850.3U CN208110290U (en) | 2018-03-21 | 2018-03-21 | One kind being based on STM32 multifunctional intellectual reminiscences clock alarming circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208110290U true CN208110290U (en) | 2018-11-16 |
Family
ID=64122053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820386850.3U Expired - Fee Related CN208110290U (en) | 2018-03-21 | 2018-03-21 | One kind being based on STM32 multifunctional intellectual reminiscences clock alarming circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208110290U (en) |
-
2018
- 2018-03-21 CN CN201820386850.3U patent/CN208110290U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181116 Termination date: 20190321 |