CN208255876U - A kind of novel music calculator system - Google Patents
A kind of novel music calculator system Download PDFInfo
- Publication number
- CN208255876U CN208255876U CN201820346054.7U CN201820346054U CN208255876U CN 208255876 U CN208255876 U CN 208255876U CN 201820346054 U CN201820346054 U CN 201820346054U CN 208255876 U CN208255876 U CN 208255876U
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- loudspeaker
- music
- display screen
- output end
- key
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Abstract
A kind of novel music calculator system of the utility model, on the basis of meeting the basic function of calculator, it can also perform music, and the switch of control key control loudspeaker can be passed through, volume is adjustable, and can with peripheral earphone, sound equipment or other audio frequency apparatuses, solve the problems, such as music calculator function is not complete, loudspeaker uncontrolled performance when disturb others.The system includes master controller, power supply module, switch, key module, loudspeaker module, display screen and audio interface, power supply module is the power supply of 5V battery, the output end of power supply module is connect with the power input of master controller, driving circuit and display screen, the signal input part of master controller is connect with the signal output end of the signal output end of switch and key module respectively, and the signal output end of master controller is connect with the signal input part of the signal input part of loudspeaker module, the signal input part of display screen and audio interface respectively.
Description
Technical field
The utility model relates to music calculator technical fields, are in particular a kind of novel music calculator systems.
Background technique
Calculator is the indispensable schooling apparatus of students, and some retailers or storekeeper also be unable to do without calculator, to avoid making
Accounting at property loss, when being settled accounts；A kind of music calculator comes into being recently, with calculator playing music,
The hobby new as one kind of minority group, music calculator help to develop intelligence, the imagination of child, enrich child
Music knowledge make more hobbies, and the mating capability of hand brain can be promoted, specialize in some songs in person in the recent period
It is played with calculator, aprowl obtains the favorable comment of spectators, therefore have also discovered what music calculator can improve and improve
Place；Music calculator is mostly calculator body, and the volume of loudspeaker is unadjustable, in more quiet occasion oneself
Hobby is not easy to be satisfied, and is easy to disturb by making noise to others, while needing to be unable to reach requirement again when outer signal to noise ratio is larger；So more specially
The more intelligent music calculator of industry should be studied.
A kind of novel music calculator system of the utility model can be on the basis of meeting the basic function of calculator
It performs music, preset song is selected by key, and can adjust by the switch of control key control loudspeaker, volume
Section, and can solve that music calculator function is not complete, loudspeaker is uncontrolled with peripheral earphone, sound equipment or other audio frequency apparatuses
The problem of system is disturbed others when playing.
Summary of the invention
A kind of novel music calculator system of the utility model can be on the basis of meeting the basic function of calculator
It performs music, preset song is selected by key, and can adjust by the switch of control key control loudspeaker, volume
Section, and can solve that music calculator function is not complete, loudspeaker is uncontrolled with peripheral earphone, sound equipment or other audio frequency apparatuses
The problem of system is disturbed others when playing.
To achieve the above object, the utility model provides a kind of novel music calculator system, which includes master control
Device, power supply module, switch, key module, loudspeaker module, display screen and audio interface processed, based on the master controller
Unit is managed, identifies each signal input and control signal output；Switch is the switch of the music function of control music calculator；It is described
Loudspeaker module include control key, driving circuit, volume control circuit and loudspeaker, control key control loudspeaker whether work
Make, the input terminal of the circuit output end of control key and driving circuit connects, the output end of driving circuit and volume control circuit
Input terminal connection, the output end of volume control circuit are connect with loudspeaker signal input terminal；Key module be provided with altogether 29 by
Key；Display screen is for showing calculating formula and result；Audio interface is used for external audio frequency external speaker；
The power supply module is the power supply of 5V battery, the output end of power supply module and master controller, driving circuit and display
The power input of screen connects；
The signal input part of the master controller is exported with the signal output end of switch and the signal of key module respectively
End connection, the signal output end of master controller respectively with the signal input part of loudspeaker module, display screen signal input part and
The signal input part of audio interface connects.
As advanced optimizing for the utility model, a kind of novel music calculator system of the utility model, the master
Controller is STM32 series STM32F103ZET6 single-chip microcontroller.
As advanced optimizing for the utility model, a kind of novel music calculator system of the utility model, described is aobvious
Display screen is LCD1602 display screen.
As advanced optimizing for the utility model, a kind of novel music calculator system of the utility model, the sound
Amount adjusts in circuit and is provided with WHT118 slide rheostat.
As advanced optimizing for the utility model, a kind of novel music calculator system of the utility model, the sound
Frequency interface is the audio jack of the 3.5mm of 3F07.
A kind of novel music calculator system of the utility model has the beneficial effect that
1. a kind of novel music calculator system of the utility model, on the basis of meeting the basic function of calculator, may be used also
To perform music, preset song is selected by key, and can adjust by the switch of control key control loudspeaker, volume
Section, and can solve that music calculator function is not complete, loudspeaker is uncontrolled with peripheral earphone, sound equipment or other audio frequency apparatuses
The problem of system is disturbed others when playing.
2. on the basis of the utility model can satisfy the basic function of calculator, can also perform music, realizes and calculate
The function diversification of device, improves the interest of calculator.
3. the utility model selects preset song by key, the professional of music calculator is enhanced, it is with higher
Convenience.
4. the utility model by control key control loudspeaker switch, volume is adjustable, and can with peripheral earphone,
Sound equipment or other audio frequency apparatuses, enhance the practicability of music calculator.
5. the utility model is to have the people of the hobby to provide convenience, so that music calculator is more humane.
Detailed description of the invention
The utility model is described in more detail with specific implementation method with reference to the accompanying drawing.
Fig. 1 is the hardware structural diagram of the utility model；
Fig. 2 is the circuit diagram of the master controller of the utility model；
Fig. 3 is the circuit diagram of the switch of the utility model；
Fig. 4 is the circuit diagram of the key module figure one of the utility model；
Fig. 5 is the circuit diagram of the key module figure two of the utility model；
Fig. 6 is the circuit diagram of the key module figure three of the utility model；
Fig. 7 is the circuit diagram of the key module figure four of the utility model；
Fig. 8 is the circuit diagram of the display screen of the utility model；
Fig. 9 is the circuit diagram of the loudspeaker module of the utility model；
Figure 10 is the circuit diagram of the audio interface of the utility model.
Specific embodiment
Illustrate present embodiment, a kind of novel music meter of the utility model below with reference to Fig. 1,2,3,4,5,6,7,8,9,10
Device system is calculated, on the basis of meeting the basic function of calculator, can also perform music, preset song is selected by key, and
And can be by the switch of control key control loudspeaker, volume is adjustable, and can be with peripheral earphone, sound equipment or other audios
Equipment, solve the problems, such as music calculator function is not complete, loudspeaker uncontrolled performance when disturb others.
To achieve the above object, the utility model provides a kind of novel music calculator system, which includes master control
Device, power supply module, switch, key module, loudspeaker module, display screen and audio interface processed, based on the master controller
Unit is managed, identifies each signal input and control signal output；Switch is the switch of the music function of control music calculator；It is described
Loudspeaker module include control key, driving circuit, volume control circuit and loudspeaker, control key control loudspeaker whether work
Make, the input terminal of the circuit output end of control key and driving circuit connects, the output end of driving circuit and volume control circuit
Input terminal connection, the output end of volume control circuit are connect with loudspeaker signal input terminal；Key module be provided with altogether 29 by
Key, 29 keys be respectively the indispensable number 0-9 of calculator, 00 ,+,-, * ,/,=, %, AC, CE, boy student/female
Life, time, X2,1/X,M+,M-,MS,MC,±；Display screen is for showing calculating formula and result；Audio interface is used for external audio frequency
External speaker；
The power supply module is the power supply of 5V battery, the output end of power supply module and master controller, driving circuit and display
The power input of screen connects；
The signal input part of the master controller is exported with the signal output end of switch and the signal of key module respectively
End connection, the signal output end of master controller respectively with the signal input part of loudspeaker module, display screen signal input part and
The signal input part of audio interface connects；Working principle: 5V battery be STM32F103ZET6 single-chip microcontroller, driving circuit and
The power supply of LCD1602 display screen, 29 keys of calculator be respectively number 0-9,00 ,+,-, * ,/,=, %, AC, CE, male
Life/schoolgirl, time, X2, 1/X, M+, M-, MS, MC, ±, when calculator carry out digital operation when, input number, symbol and
When equal sign, the signal output end of each key is connect with the signal input part of STM32F103ZET6 single-chip microcontroller, STM32F103ZET6
The signal input part of single-chip microcontroller identifies pressing and bouncing for each key by the jump of level, and resulting arithmetic expression is passed through PF3
Pin controls the RS pin of LCD1602 display screen, and RS is that register selects, selection data register, low level 0 when high level 1
When selection instruction register；PF4 pin controls the RW pin of LCD1602 display screen, and RW is reading writing signal line, when high level 1 into
Row read operation, when low level 0, carry out write operation, when LCD1602 display screen receives the information of STM32F103ZET6 single-chip microcontroller
The pin sets 0 when the pin sets the control display of 1, LCD1602 display screen；PF5 pin controls the E pin of LCD1602 display screen, E
End is enable end, and when high level 1 reads information, and when negative jump executes instruction, and the end E becomes 1 after being initialized as 0；
STM32F103ZET6 single-chip microcontroller passes through the D0-D7 of PF6-PF13 pin control LCD1602 display screen to transmit data, finally
STM32F103ZET6 single-chip microcontroller controls LCD1602 display screen by above-mentioned pin and shows arithmetic expression and answer；
The identification of STM32F103ZET6 single-chip microcontroller resets key, and control LCD1602 display screen shows that zeros data, control principle are same as above；It will
It closes the switch, the signal output end of the signal input part connection switch of STM32F103ZET6 single-chip microcontroller, STM32F103ZET6 is mono-
Piece machine examination measures the signal intensity of switch, and the state to close the switch, and the control key pressing that will control loudspeaker, loudspeaker
Circuit connect, speaker operation presses any key in 29 keys at this time, and the identification of STM32F103ZET6 single-chip microcontroller is pressed
Key is pressed, and by PE14 pin is exported different waveform and controlled loudspeaker and issue corresponding keypad tone, can playing music,
The volume of loudspeaker is adjusted by the resistance value of variable resistance and is realized, the change in resistance of variable resistance makes the electric current of circuit big
It is small to change, due to loudspeaker volume with it is current related, therefore can direct regulation and control loudspeaker volume, resistance high current
Small volume is small, and resistance low current gives great volume greatly, presses control key again if being not desired to speaker operation, so that the circuit of loudspeaker
Disconnection, if audio interface is connected earphone or sound equipment, STM32F103ZET6 single-chip microcontroller is default by the output of PF15 pin
Waveform corresponding with the key pressed control external speaker issue keypad tone, natural shape when key is intensive, keying frequency is high
At music, also adjusting sound volume, volume adjusting method are adjusted by the resistance value of variable resistance and are realized external equipment, variable resistance
Change in resistance makes the size of current of circuit change, current related due to volume and circuit, therefore can direct regulation and control
The volume of external speaker, resistance high current small volume is small, and resistance low current gives great volume greatly；It is realized by program and presses lower switch three
Second, realize the function of playing preset musical, by lower switch three seconds, the second of 29 keys filled 29 head for being defined as predefined music score
Song, STM32F103ZET6 single-chip microcontroller control LCD1602 display screen show the song of each key with corresponding representative, control principle
Ibid control principle of the STM32F103ZET6 single-chip microcontroller to LCD1602 display screen, the signal output end connection of key module
The signal input part of STM32F103ZET6 single-chip microcontroller presses the corresponding key of the music to be played, STM32F103ZET6 monolithic
Machine examination measures signal intensity, which song when identifying, STM32F103ZET6 single-chip microcontroller control LCD1602 display screen shows this
The music calculator of music plays music score, and control principle is same as above STM32F103ZET6 single-chip microcontroller to LCD1602 display screen
Control principle then corresponds to the music score that display screen is shown and is played, and the working principle of loudspeaker and audio interface is same as above, bullet
The control key for finishing mute speaker is played, switch is disconnected.
As advanced optimizing for the utility model, a kind of novel music calculator system of the utility model, the master
Controller is STM32 series STM32F103ZET6 single-chip microcontroller, the PD8 pin connection switch of STM32F103ZET6 single-chip microcontroller
The signal output end of signal output end, PE7-PE15, PD9-PD15, PC6-PC15 and PF0-PF2 pin and key module connects
It connects, PF3-PF13 pin connects the signal input part of LCD1602 display screen, the signal input part of PF14 connection loudspeaker, PF15
Connect the signal input part of audio interface.
As advanced optimizing for the utility model, a kind of novel music calculator system of the utility model, described is aobvious
Display screen is LCD1602 display screen, the signal input part of LCD1602 display screen and the PF3-PF13 of STM32F103ZET6 single-chip microcontroller
Pin connection.
As advanced optimizing for the utility model, a kind of novel music calculator system of the utility model, the sound
Amount adjusts in circuit and is provided with WHT118 slide rheostat.
As advanced optimizing for the utility model, a kind of novel music calculator system of the utility model, the sound
Frequency interface is the audio jack of the 3.5mm of 3F07, signal input part and the STM32F103ZET6 single-chip microcontroller of audio interface
The connection of PF15 pin.
The working principle of the utility model is:
5V battery is that STM32F103ZET6 single-chip microcontroller, driving circuit and LCD1602 display screen are powered, 29 of calculator
Key be respectively number 0-9,00 ,+,-, * ,/,=, %, AC, CE, boy student/schoolgirl, time, X2、1/X、M+、M-、MS、
MC, ±, when calculator carries out digital operation, input number, symbol and when equal sign, the signal output end of each key with
The signal input part of STM32F103ZET6 single-chip microcontroller connects, and the signal input part of STM32F103ZET6 single-chip microcontroller passes through level
Jump identifies pressing and bouncing for each key, and resulting arithmetic expression is drawn by the RS that PF3 pin controls LCD1602 display screen
Foot, RS are register selection, selection instruction register when selection data register, low level 0 when high level 1；PF4 pin control
The RW pin of LCD1602 display screen processed, RW are reading writing signal line, and when high level 1 carries out read operation, and when low level 0 carries out writing behaviour
Make, when LCD1602 display screen receives the information of STM32F103ZET6 single-chip microcontroller, the pin sets the control of 1, LCD1602 display screen
The pin sets 0 when display；PF5 pin controls the E pin of LCD1602 display screen, and the end E is enable end, and letter is read when high level 1
Breath executes instruction when bearing jump, and the end E becomes 1 after being initialized as 0；STM32F103ZET6 single-chip microcontroller passes through the control of PF6-PF13 pin
The D0-D7 of LCD1602 display screen processed is controlled to transmit data, final STM32F103ZET6 single-chip microcontroller by above-mentioned pin
LCD1602 display screen shows arithmetic expression and answer；The identification of STM32F103ZET6 single-chip microcontroller resets key, and control LCD1602 is aobvious
Display screen shows that zeros data, control principle are same as above；
It will close the switch, the signal output end of the signal input part connection switch of STM32F103ZET6 single-chip microcontroller,
STM32F103ZET6 single-chip microcontroller detects the signal intensity of switch, and the state to close the switch, and the control that will control loudspeaker
The circuit of key pressing processed, loudspeaker is connected, and speaker operation presses any key in 29 keys at this time,
STM32F103ZET6 single-chip microcontroller key range is pressed, and is exported different waveforms by PE14 pin and controlled loudspeaker sending
Corresponding keypad tone, can playing music, the volume of loudspeaker adjusted by the resistance value of variable resistance and realized, variable resistance
Change in resistance the size of current of circuit is changed, due to loudspeaker volume with it is current related, therefore can be direct
Regulate and control the volume of loudspeaker, resistance high current small volume is small, and resistance low current gives great volume greatly, if being not desired to speaker operation will control
Key is pressed again, so that the circuit of loudspeaker disconnects, if audio interface is connected earphone or sound equipment,
STM32F103ZET6 single-chip microcontroller exports preset outer put of waveform control corresponding with key that is being pressed by PF15 pin and sets
Preparation goes out keypad tone, self-assembling formation music when key is intensive, keying frequency is high, external equipment also adjusting sound volume, volume adjustment
Method is adjusted by the resistance value of variable resistance and is realized, the change in resistance of variable resistance makes the size of current of circuit change,
It is current related due to volume and circuit, thus can direct regulation and control external speaker volume, resistance high current small volume is small, electricity
Resistance low current gives great volume greatly；It is realized and is pressed lower switch three seconds by program, the function of playing preset musical is realized, by lower switch three
Second, the second of 29 keys fills 29 songs for being defined as predefined music score, and STM32F103ZET6 single-chip microcontroller controls LCD1602
Display screen shows the song of each key with corresponding representative, and control principle is same as above STM32F103ZET6 single-chip microcontroller and shows to LCD1602
The control principle of screen, the signal input part of the signal output end connection STM32F103ZET6 single-chip microcontroller of key module, pressing will bullet
The corresponding key of the music played, STM32F103ZET6 single-chip microcontroller detect signal intensity, which song when identifying,
STM32F103ZET6 single-chip microcontroller control LCD1602 display screen shows that the music calculator of the music plays music score, control principle
Ibid STM32F103ZET6 single-chip microcontroller then corresponds to the music score that display screen is shown and carries out bullet to the control principle of LCD1602 display screen
It plays, the working principle of loudspeaker and audio interface is same as above, and plays the control key for finishing mute speaker, is by switch disconnection
It can.
Certainly, above description is not limitation of the utility model, and the utility model is also not limited to the example above, this skill
The variations, modifications, additions or substitutions that the those of ordinary skill in art field is made in the essential scope of the utility model, also belong to
In the protection scope of the utility model.
Claims (5)
1. a kind of novel music calculator system, including master controller, power supply module, switch, key module, loudspeaker module,
Display screen and audio interface, it is characterised in that: the master controller is Main Processor Unit, identifies each signal input and control letter
Number output；Switch is the switch of the music function of control music calculator；The loudspeaker module includes control key, driving electricity
Whether road, volume control circuit and loudspeaker, control key control loudspeaker work, the circuit output end and driving circuit of control key
Input terminal connection, the input terminal of the output end of driving circuit and volume control circuit connects, the output end of volume control circuit
It is connect with loudspeaker signal input terminal；Key module is provided with 29 keys altogether；Display screen is for showing calculating formula and result；Sound
Frequency interface is used for external audio frequency external speaker；
The power supply module is the power supply of 5V battery, output end and master controller, driving circuit and the display screen of power supply module
Power input connection；
The signal input part of the master controller connects with the signal output end of switch and the signal output end of key module respectively
Connect, the signal output end of master controller respectively with the signal input part of loudspeaker module, the signal input part of display screen and audio
The signal input part of interface connects.
2. a kind of novel music calculator system according to claim 1, it is characterised in that: the master controller is
STM32 series STM32F103ZET6 single-chip microcontroller.
3. a kind of novel music calculator system according to claim 1, it is characterised in that: the display screen is
LCD1602 display screen.
4. a kind of novel music calculator system according to claim 1, it is characterised in that: the volume control circuit
In be provided with WHT118 slide rheostat.
5. a kind of novel music calculator system according to claim 1, it is characterised in that: the audio interface is
The audio jack of the 3.5mm of 3F07.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820346054.7U CN208255876U (en) | 2018-03-14 | 2018-03-14 | A kind of novel music calculator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820346054.7U CN208255876U (en) | 2018-03-14 | 2018-03-14 | A kind of novel music calculator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208255876U true CN208255876U (en) | 2018-12-18 |
Family
ID=64608407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820346054.7U Expired - Fee Related CN208255876U (en) | 2018-03-14 | 2018-03-14 | A kind of novel music calculator system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208255876U (en) |
-
2018
- 2018-03-14 CN CN201820346054.7U patent/CN208255876U/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: 20181218 Termination date: 20200314 |