CN209729493U - A kind of SCM Based modular portable music percussion pad - Google Patents
A kind of SCM Based modular portable music percussion pad Download PDFInfo
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- CN209729493U CN209729493U CN201920071349.2U CN201920071349U CN209729493U CN 209729493 U CN209729493 U CN 209729493U CN 201920071349 U CN201920071349 U CN 201920071349U CN 209729493 U CN209729493 U CN 209729493U
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- portable music
- scm based
- percussion pad
- host computer
- modular portable
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- Electrophonic Musical Instruments (AREA)
Abstract
The utility model discloses a kind of SCM Based modular portable music percussion pads, including shell, slave computer, host computer, PCB circuit board, driving integrated chip, LED light and silica gel conduction key；The slave computer, host computer is set in shell, the PCB circuit board is set to the upper surface of shell, the LED light is welded in PCB circuit board and is controlled by driving integrated chip, the silica gel conduction key is arranged in arrays to be correspondingly overlying in LED light, the present apparatus reduces the cost of manufacture of existing commercialized music percussion pad, and it can guarantee the quality of music making in the case where cost reduces, and small size processor is integrated by modularization, the large-scale end PC computer, which need not be connected, can be used, music is made whenever and wherever possible, it is convenient to use, portability improves.
Description
Technical field
The utility model relates to percussion instruments, and in particular to a kind of SCM Based modular portable music percussion pad.
Background technique
It is getting faster now with development in science and technology, music making technology is also advanced by leaps and bounds, and MIDI controller is also more and more fiery
Heat, the music making people used are even more innumerable.MIDI controller exactly one kind carries out information exchange by MIDI agreement
Equipment, currently on the market most burning hot MIDI controller be Novation house flag under produced product.The controller principle
On do not generate any source of sound and sounding device, be a kind of for controlling other professional music softwares for editing the key for musical instrument that occurs
Disk, it can be understood as the relationship in computer of keyboard and mouse.It can be used to control music work station, more popular at present is
Ableton Live.Playing principle is that the present apparatus can play audio fragment, a segment is formulated to each key, then according to setting
The sequence counted is performed.Its good-looking appearance and gorgeous lighting effects have attracted countless beans vermicelli to attempt.Mainstream at present
The price of controller is more expensive, Shou Zhong little, is not easy to promote；And it needs to be played by connecting the end computer PC, reduce
Portability and flexibility in use.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of SCM Based modular portable
Music percussion pad, the present apparatus use microcontroller processing single chip and system, and host computer and slave computer are integrated in a module
In, achieve the effect that make whenever and wherever possible and perform music.
The utility model is achieved through the following technical solutions:
A kind of SCM Based modular portable music percussion pad, including shell, slave computer, host computer, PCB circuit
Plate, driving integrated chip, LED light and silica gel conduction key；The slave computer, host computer are set in shell, and host computer is under
Position machine is connected, and slave computer is connected with PCB circuit board, and the driving integrated chip is set in PCB circuit board, the PCB circuit
Plate is set to the upper surface of shell, and the LED light is welded in PCB circuit board and is controlled by driving integrated chip, the silica gel
Conductive key is arranged in arrays to be correspondingly overlying in LED light.
In the above-mentioned technical solutions, the shell is spliced and combined by acrylic board, specifically includes 1 piece by 2 pieces of Asias gram
Upper plate, 1 piece of bottom plate and the 4 blocks of side plates that power overlaps to form, the shell are the square box body in section, and tray interior is for pacifying
Slave computer and host computer are filled, the surface of upper plate is for installing PCB circuit board, LED light and silica gel conduction key.
In the above-mentioned technical solutions, the slave computer is DreamNano ATmega32u4 single-chip microcontroller.
In the above-mentioned technical solutions, the host computer is raspberry pie 3B.
In the above-mentioned technical solutions, the input and output of the slave computer flank the USB outlet of the host computer,
In the above-mentioned technical solutions, the power supply outlet side external power supply of the host computer.
In the above-mentioned technical solutions, the host computer is by bluetooth connection Baffle Box of Bluetooth, or passes through USB line connecting sound equipment.
In the above-mentioned technical solutions, the driving integrated chip is HT16K33.
In the above-mentioned technical solutions, the switching diode of the LED light is 1N4148.
In the above-mentioned technical solutions, the silica gel conduction key is the matrix arrangement in 8 × 8.
The advantages of the utility model and have the beneficial effect that the present apparatus reduces the production of existing commercialized music percussion pad
Cost, and can guarantee the quality of music making in the case where cost reduces, and small size processing is integrated by modularization
Device, it is not necessary to which the connection large size end PC computer can be used, and make music whenever and wherever possible, be easy to use, portability improves.
Detailed description of the invention
Fig. 1 is the utility model overlooking structure diagram.
Fig. 2 is the utility model present invention looks up structural representation.
Fig. 3 is the utility model side structure schematic view.
Fig. 4 is MIDI key circuit figure.
Fig. 5 is matrix keyboard parallel circuit figure.
Fig. 6 is LED control circuit figure.
Wherein: 1 is upper plate, and 2 be bottom plate, and 3 be side plate, and 4 be silica gel conduction key.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached
Figure obtains other relevant drawings.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, combined with specific embodiments below into one
Step illustrates the technical solution of the utility model.
Embodiment 1
A kind of structure of SCM Based modular portable music percussion pad:
As shown in Figure 1-Figure 3, the music percussion pad includes that shell, slave computer, host computer, PCB circuit board, driving are integrated
Chip, LED light and silica gel conduction key (4)；The slave computer, host computer are set in shell, the PCB circuit board setting
In the upper surface of shell, the LED light is welded in PCB circuit board and is controlled by driving integrated chip, and the silica gel conduction is pressed
Key is arranged in arrays to be correspondingly overlying in LED light.
The shell is spliced and combined by acrylic board, specifically includes 1 piece of upper plate overlapped to form by 2 pieces of acrylics
(1), 1 piece of bottom plate (2) and 4 pieces of side plates (3), the shell are the square box body in section, and tray interior is for installing bottom
Machine and host computer, the surface of upper plate is for installing PCB circuit board, LED light and silica gel conduction key.
The slave computer is DreamNano ATmega32u4 single-chip microcontroller.
The input and output of the slave computer flank the USB outlet of the host computer.
The host computer is raspberry pie 3B.
The power supply outlet side external power supply of the host computer.
The host computer is by bluetooth connection Baffle Box of Bluetooth, or passes through USB line connecting sound equipment.
The driving integrated chip is HT16K33.
The switching diode of the LED light is 1N4148.
The silica gel conduction key is the matrix arrangement in 8 × 8.
In order to embody the upper percussion pad product such as Ableton Live relative to market, this product drama is at low cost
Advantage, following costs of manufacture for listing percussion pad in above-described embodiment:
1. acrylic shell is a set of (50 yuan)；
2.Arduino Leonardo；(26 yuan)
7,3.m3x10 screw；
6,4.m3 nut；
5. nylon column 4 (2 yuan)
4,6.m3x16 screw；
7. 4 pieces of key pcb plate；(68 yuan)
8.ht16k33 28SOPled key drives IC 4；(10 yuan)
9. 0805 47k resistance x12,10k resistance x8；(6 yuan)
10. 0603 10uf capacitor x20；(4.5 yuan)
11.in4148 switching diode 50 (4.8 yuan)；
Each 321 of the led trillium color 12. 3mm shines；(10 yuan)
13. connecting line 4；
14. silica gel conduction key 64；(130 yuan)
Embodiment 2
A kind of function of SCM Based modular portable music percussion pad:
When specific implementation, the power input output line of DreamNano is inserted on the USB interface of raspberry pie 3B, raspberry is used
It sends power supply line to be powered to whole device, opens music editing software and then thus realize the key assignment key mapping of the device
The function of the device musical performance.
In practical application, DreamNano can be Arduino Leonardo(1)Equal series monolithics slave computer, raspberry pie
3B(2)It can be other minimum embedded systems.Above-mentioned upper and lower computer can be piled up and be stacked, and outer casing bottom can also be placed on
Elsewhere, space is saved.
By tapping the silica gel conduction key of the present apparatus, the circuit level on PCB can be made to change, circuit exports signal
Into the slave computer of above-mentioned apparatus, slave computer is read by the address of each key of I2C bus marco, feedback information to above-mentioned dress
In the host computer set, host computer is judged by writing program, controls music editing software to make Bluetooth audio device issue different sounds
Music sound.In addition, the host computer can also read feedback information to slave computer according to different key mappings, IC chip is controlled
HT16K33 makes LED matrix issue light of different shapes.
Note 1:Arduino Leonardo: being a convenient flexible, hand in convenience open source electronics Prototyping Platform.Comprising hard
Part (the Arduino plates of various models) and software (Arduino IDE).It is opened by an European development teams in winter in 2005
Hair.It is implemented in open source simple I/O interface plate, and has the Processing/ using similar Java, C language
Writing develops environment.Mainly include two parts: hardware components can be used to do the Arduino circuit board of circuit connection；Separately
One is Arduino IDE, in addition, being equipped with micro interface, can have SCL/ directly by the most equipment of USB connection
SDA interface.
Note 2: raspberry pie 3B: being a microcomputer motherboards based on ARM, using SD/MicroSD card as memory hard disk, card
There are 4 USB interfaces and 10/100 Ethernet interface around piece mainboard, the TV output that colleague possesses video analog signal connects
Mouthful and HDMI HD video output interface, one is all incorporated into upper-part only on the mainboard more slightly larger than credit card, has institute
There is the basic function of PC, system is based on Linux.
Embodiment 3
The working principle of circuit in a kind of SCM Based modular portable music percussion pad:
(1) MIDI key circuit
1. key circuit
As shown in figure 4, being connected by 1N4148 cache switching diodes control circuit, the trigger of 4 × 4 matrixes is assigned
16 different channels, silica gel conduction key are pressed, and the circuit conducting on trigger circuit plate, circuit level generates variation, defeated
It is out binary-coded character, is transferred to single-chip microcontroller by asynchronous paths, binary-coded character is converted MIDI Message by single-chip microcontroller,
It is transmitted to host computer, the software for triggering host computer is read, and specific sound instruction is transmitted in sound equipment, is made a sound.
2. matrix keyboard parallel circuit
The circuit distinguishes 4 × 4 different matrixes by selecting A0, A1, A2 whether to be connected, and assigns address.
(2) LED control circuit
Core chips is Holtek HT16K33 memory map function and 16 × 8LED controller driver chip.Using
SOP28 encapsulation, what four control chips controlled 16 LED light in each matrix address respectively cut-offs state.
The circuit is mainly made of three parts: HT16K33 chip, 3mm LED light emitting diode, 1N4148.
(1) HT16K33: the operating voltage of the chip is 4.5-5.5V, therefore using 5V direct current as circuit portion branch
The input divided.Can directly power under conventional environment for single-chip microcontroller, because circuit thus be by single-chip microcontroller pin powered come into
Row work.Its software configuration characteristic causes it to be very suitable to control multiple LED applications, onboard with other by two-way I2C bus
It is compatible, at most controllable 16*8 LED.
3mm LED scatter-type light emitting diode: pressure drop is about 2.2V-3V or so, is independently controlled by circuit by HT16K33
System.
1N4148: the parameter of the HF switch diode is the mean forward current of 75V reverse withstand voltage and 150mA, is suitble to
Do circuit rectifies, junction capacity 4pF, reverse recovery time 4nS, and it is cheap, control the address choice of the circuit.
Circuit part: as shown, input voltage Vcc works normally HT16K33, GND falls down to the ground connection.HT16K33's
16 outputs are separately connected 16 light emitting diodes, and every branch controls the luminous scatter diodes of a 3mm；1N4148
Judge the connection situation of three interfaces on the left side, to feed back the address information of HT16K33, SCL/SDA pin is connected with single-chip microcontroller.
1) experimental plate is exported for key, output, this experiment porch can be realized by pressing contact silica gel conduction key
Input 5V supply voltage.After pressing the button, computer complier test window is communicated, and keeps output MIDI Message.
After pressing the button again, stops one specific MIDI Message of output, as a result substantially conform to the requirement of MIDI percussion pad.
Wherein delay time, there are 2-3s.
2) for LED export experimental plate, by change silica gel conduction key-press status, by next time can constant, press again
It can extinguish.Program can be write under normal operating conditions and carries out dynamic change, this experiment inputs 5V supply voltage, exports stable
3V voltage.
SCM Based portable module music percussion pad, gross weight do not surpass 500 grams, single-chip microcontroller and minimum system raspberry pie
It communicates, by designing circuit, reaching control LED light state and exporting midi signal to master system, raspberry is utilized
The microsize and high-performance processor of group can be well realized and use MIDI musical instruments-music percussion pad whenever and wherever possible
Optimization aim, solve the immovability of music making and performance on definite meaning and improve the freedom degree of equipment, accord with
The design concept of " portable " and " integrated " is closed, there is good economic value and realizability.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear",
The orientation or position of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " clockwise ", " counterclockwise "
Setting relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Illustrative description has been done to the utility model above, it should explanation, in the core for not departing from the utility model
In the case where the heart, it is any it is simple deformation, modification or other skilled in the art can not spend creative work etc.
The protection scope of the utility model is each fallen with replacement.
Claims (10)
1. a kind of SCM Based modular portable music percussion pad, it is characterised in that: including shell, slave computer, host computer,
PCB circuit board, driving integrated chip, LED light and silica gel conduction key；The slave computer, host computer are set in shell, described
PCB circuit board is set to the upper surface of shell, and the LED light is welded in PCB circuit board and is controlled by driving integrated chip, institute
State that silica gel conduction key is arranged in arrays to be correspondingly overlying in LED light.
2. a kind of SCM Based modular portable music percussion pad according to claim 1, it is characterised in that: described
Shell is spliced and combined by acrylic board, specifically includes 1 piece of upper plate overlapped to form by 2 pieces of acrylics, 1 piece of bottom plate and 4 pieces
Side plate, the shell are the square box body in section, and tray interior is used for installing slave computer and host computer, the surface of upper plate
In installation PCB circuit board, LED light and silica gel conduction key.
3. a kind of SCM Based modular portable music percussion pad according to claim 1, it is characterised in that: described
Slave computer is DreamNano ATmega32u4 single-chip microcontroller.
4. a kind of SCM Based modular portable music percussion pad according to claim 1, it is characterised in that: described
Host computer is raspberry pie 3B.
5. a kind of SCM Based modular portable music percussion pad according to claim 1, it is characterised in that: described
The input and output of slave computer flank the USB outlet of the host computer.
6. a kind of SCM Based modular portable music percussion pad according to claim 1, it is characterised in that: described
The power supply outlet side external power supply of host computer.
7. a kind of SCM Based modular portable music percussion pad according to claim 1, it is characterised in that: described
Host computer is by bluetooth connection Baffle Box of Bluetooth, or passes through USB line connecting sound equipment.
8. a kind of SCM Based modular portable music percussion pad according to claim 1, it is characterised in that: described
Driving integrated chip is HT16K33.
9. a kind of SCM Based modular portable music percussion pad according to claim 1, it is characterised in that: described
The switching diode of LED light is 1N4148.
10. a kind of SCM Based modular portable music percussion pad according to claim 1, it is characterised in that: institute
Stating silica gel conduction key is the matrix arrangement in 8 × 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920071349.2U CN209729493U (en) | 2019-01-16 | 2019-01-16 | A kind of SCM Based modular portable music percussion pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920071349.2U CN209729493U (en) | 2019-01-16 | 2019-01-16 | A kind of SCM Based modular portable music percussion pad |
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| Publication Number | Publication Date |
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| CN209729493U true CN209729493U (en) | 2019-12-03 |
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| CN201920071349.2U Expired - Fee Related CN209729493U (en) | 2019-01-16 | 2019-01-16 | A kind of SCM Based modular portable music percussion pad |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686350A (en) * | 2019-01-16 | 2019-04-26 | 天津大学 | A kind of SCM Based modular portable music percussion pad |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686350A (en) * | 2019-01-16 | 2019-04-26 | 天津大学 | A kind of SCM Based modular portable music percussion pad |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20191203 Termination date: 20210116 |