CN215187487U - Intelligent sound box LED dynamic display device - Google Patents

Abstract

The utility model provides an intelligent sound box LED dynamic display device, which comprises a main control component, a plurality of LED control components, a plurality of LED indicating lamp groups, a power input circuit and a control signal input circuit, wherein the LED indicating lamp groups comprise R-type LED lamps, G-type LED lamps and B-type LED lamps which are connected in parallel; the main control assembly is connected with an external power supply through the power supply input circuit and receives a control signal through the control signal input circuit; the LED control assemblies are sequentially connected end to end, and the output end of the previous LED control assembly is connected with the input end of the next LED control assembly; the power input circuit is connected with the LED control assembly through the LED indicating lamp group. LED lamp beads of three primary colors are arranged in one group of LED indicating lamp groups, and after the main control assembly receives the control signals, the LED indicating lamp groups are correspondingly controlled by the LED control assemblies respectively, so that LED dynamic display of the intelligent sound box can be realized by a simple circuit structure.

Description

Intelligent sound box LED dynamic display device

Technical Field

The utility model relates to an intelligence audio amplifier technical field relates to an operating condition indicating device, especially relates to an intelligence audio amplifier LED dynamic display device.

Background

Compared with a common sound box, the intelligent sound box mainly embodies the man-machine interaction function, and a user can input a control instruction to the sound box in a voice mode. The smart speaker is a product of a speaker upgrade, as it were. On one hand, the intelligent sound box is a tool for household consumers to surf the internet by voice, and can play songs on demand, surf the internet for shopping or inquire weather forecast by means of a voice input function; on the other hand, the intelligent sound box is also an important device embedded into the intelligent home, and can control the intelligent home devices, such as opening a curtain, setting the temperature of a refrigerator, raising the temperature of a water heater in advance and the like.

The intelligent sound box has more functions and more corresponding working states, and specifically comprises a plurality of states such as network disconnection, voice input and normal music playing. In order to indicate the working state, a plurality of LED indicating lamp groups are usually arranged on the intelligent sound box, and different working states of the intelligent sound box are indicated through different light-emitting states of the LED indicating lamp groups.

The main control chip sends different control instructions to the LED indicating lamp groups according to the working state of the intelligent sound box, and controls different LED indicating lamp groups to send light rays with specific colors, or different LED indicating lamp groups emit light according to a specific sequence or frequency. In the prior art, the circuit structure for realizing LED dynamic display is complex, which is disadvantageous to production cost and product energy consumption.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide an intelligence audio amplifier LED dynamic display device, can realize LED dynamic display with simple circuit structure, be favorable to reduction in production cost and reduction intelligent audio amplifier energy consumption.

The utility model provides a technical scheme that technical problem adopted as follows:

an intelligent sound box LED dynamic display device comprises a main control assembly, a plurality of LED control assemblies, a plurality of LED indicator lamp groups, a power supply input circuit and a control signal input circuit, wherein one LED indicator lamp group comprises an R-type LED lamp, a G-type LED lamp and a B-type LED lamp which are connected in parallel;

the main control assembly is connected with an external power supply through the power supply input circuit and receives a control signal through the control signal input circuit;

the LED control assemblies are sequentially connected end to end, the input end of the first LED control assembly is connected with the output end of the main control assembly, the output end of the previous LED control assembly is connected with the input end of the next LED control assembly, and the output end of the last LED control assembly is in idle connection;

the LED control assembly corresponds to the LED indicating lamp group one by one, and the power input circuit is connected with the LED control assembly through the LED indicating lamp group.

Compared with the prior art, the technical scheme has the beneficial effects that: LED lamp beads of three primary colors are arranged in one group of LED indicating lamp groups, and after the main control assembly receives the control signals, the LED indicating lamp groups are correspondingly controlled by the LED control assemblies respectively, so that LED dynamic display of the intelligent sound box can be realized by a simple circuit structure.

Further, the LED indicating lamp groups are arranged in 15-25 groups, circles are enclosed among the LED indicating lamp groups, and correspondingly, 15-25 LED control assemblies are arranged.

The beneficial effect who adopts above-mentioned scheme is: the LED indicating lamp sets of 15-25 groups form a circle and are arranged around the intelligent sound box shell, so that the LED dynamic display effect is better.

Further, the main control assembly is an AIP8F1032 chip, the control signal input circuit is connected to the main control assembly through an RXD port and a TXD port, and the main control assembly is connected to the input terminal of the first LED control assembly through an MOSI port.

The beneficial effect who adopts above-mentioned scheme is: compared with the traditional control scheme, the AIP8F1032 chip is used as the main control assembly, the main control assembly is connected with the input end of the LED control assembly through the MOSI port on the main control assembly, and the control signal transmission function can be realized only by connecting one data line, so that the peripheral circuit is simplified.

Further, the LED control assembly is an SK6812 chip, the main control assembly is connected to the DI port of the first LED control assembly through an MOSI port, the DO port of the previous LED control assembly is connected to the DI port of the next LED control assembly, and the DO port of the last LED control assembly is connected to the air; the LED control assembly is grounded through a grounding end thereof.

The beneficial effect who adopts above-mentioned scheme is: and an SK6812 chip is adopted as an LED control component, so that full-color control is facilitated.

Further, a resistor R is arranged in series at the DI port of the LED control assembly.

The beneficial effect who adopts above-mentioned scheme is: through series resistance R, can reduce the electromagnetic interference of main control subassembly to LED control assembly.

Furthermore, in one group of the LED indicating lamp groups, anodes of the R-type LED lamp, the G-type LED lamp and the B-type LED lamp are connected with the power input circuit, and cathodes of the R-type LED lamp, the G-type LED lamp and the B-type LED lamp are connected with the LED control assembly; and the anodes of the R-type LED lamp, the G-type LED lamp and the B-type LED lamp are grounded with the power input circuit through a decoupling capacitor C.

The beneficial effect who adopts above-mentioned scheme is: a decoupling capacitor C is arranged in parallel at the power input end of each LED control assembly, and the working voltage input to the LED control assemblies can be stabilized.

Further, the power input circuit comprises a resistor R1, a resistor R2, a zener diode ZD1, a triode Q1, a capacitor C1, a capacitor C2 and a power input interface;

an external power supply is connected with a C electrode of a triode Q1 through a resistor R1, an E electrode of the triode Q1 is connected with the main control assembly and the LED indicator lamp sets through a power supply input interface, the external power supply and the resistor R1 are grounded through a capacitor C1, and an E electrode of the triode Q1 is grounded through a capacitor C2;

the external power supply is connected with the B pole of the triode Q1 through the resistor R2, the B pole of the triode Q1 is also connected with the negative pole of the zener diode ZD1, and the positive pole of the zener diode ZD1 is grounded.

The beneficial effect who adopts above-mentioned scheme is: the high and unstable input voltage can be adjusted to a stable output voltage with a suitable voltage for normal use of the device.

Further, the control signal input circuit comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a transistor Q2 and a transistor Q3;

the TXD port of the main control component is connected with the B pole of a triode Q2 through a resistor R3, the E pole of the triode Q2 is grounded, the C pole of the triode Q2 is connected with the B pole of a triode Q3 through a resistor R4, the B pole of the triode Q3 is connected with VCC through a resistor R5, the E pole of the triode Q3 is connected with VCC, the C pole of the triode Q3 is grounded through a resistor R6, and the RXD port of the main control component is connected between the C pole of the triode Q3 and the resistor R6.

The beneficial effect who adopts above-mentioned scheme is: the external logic level can be converted into the logic level of the main control assembly in the device, and the reception of the external command is realized.

Drawings

Fig. 1 is the utility model relates to a smart sound box LED dynamic display device's schematic diagram.

Fig. 2 is the circuit schematic diagram of the utility model relates to an intelligence audio amplifier LED dynamic display device.

Fig. 3 is a schematic circuit diagram of a power input circuit in an LED dynamic display device of an intelligent speaker.

Fig. 4 is a schematic circuit diagram of a control signal input circuit in an LED dynamic display device of an intelligent speaker.

In the figures, the list of components represented by the various reference numbers is as follows:

the LED lamp comprises a main control assembly 1, an LED control assembly 2, an LED indicating lamp group 3, a power input circuit 4 and a control signal input circuit 5.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or assembly referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. When an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

Compared with a common sound box, the intelligent sound box mainly embodies the man-machine interaction function, and a user can input a control instruction to the sound box in a voice mode. The smart speaker is a product of a speaker upgrade, as it were. The intelligent sound box has more functions and more corresponding working states, and specifically comprises a plurality of states such as network disconnection, voice input and normal music playing. In order to indicate the working state, a plurality of LED indicating lamp groups are usually arranged on the intelligent sound box, and different working states of the intelligent sound box are indicated through different light-emitting states of the LED indicating lamp groups. For example, when the network is disconnected, the plurality of LED indicator light sets can cooperate to emit red light to prompt the user of an abnormality. In the process, the main control chip sends different control instructions to the LED indicating lamp groups according to the working state of the intelligent sound box, and controls different LED indicating lamp groups to send light rays with specific colors, or different LED indicating lamp groups emit light according to a specific sequence or frequency. In the prior art, the circuit structure for realizing LED dynamic display is complex, which is disadvantageous to production cost and product energy consumption.

As shown in fig. 1 and 2, in order to solve the above problem, the utility model provides an intelligence audio amplifier LED dynamic display device, including main control assembly 1, a plurality of LED control assembly 2, a plurality of LED pilot lamp group 3, power input circuit 4 and control signal input circuit 5, it is a set of LED pilot lamp group is including each one of the R type LED lamp, G type LED lamp and the B type LED lamp that connect in parallel each other. An LED indicating lamp group is formed by the R type LED lamp, the G type LED lamp and the B type LED lamp, so that full-color display is convenient to realize.

The main control assembly is connected with an external power supply through the power supply input circuit and receives a control signal through the control signal input circuit; the LED control assemblies are sequentially connected end to end, the input end of the first LED control assembly is connected with the output end of the main control assembly, the output end of the previous LED control assembly is connected with the input end of the next LED control assembly, and the output end of the last LED control assembly is in idle connection; the LED control assembly corresponds to the LED indicating lamp groups one by one, and the power input circuit is connected with the LED control assembly through the LED indicating lamp groups.

The working process of the device is that the intelligent sound box sends corresponding control signals to the main control assembly according to the actual state of the intelligent sound box, and the main control assembly correspondingly controls the LED indicating lamp groups through the LED control assembly respectively according to different control signals, so that the R-type LED lamp, the G-type LED lamp and the B-type LED lamp in the middle emit light according to a specific rule. Based on the circuit structure, after the main control assembly receives the control signal, the LED control assemblies respectively and correspondingly control the LED indicating lamp groups, LED lamp beads with three primary colors are arranged in each LED indicating lamp group, and LED dynamic display of the intelligent sound box can be realized through the R type LED lamp, the G type LED lamp and the B type LED lamp which are connected in parallel.

Specifically, according to the difference of the volume of the intelligent sound box shell and the arrangement mode of the LED indicating lamps, 15-25 LED indicating lamp groups are arranged, a circle is enclosed among the LED indicating lamp groups, and correspondingly, 15-25 LED control assemblies are arranged. The LED dynamic display device is provided with 15-25 groups of LED indicating lamps, the LED indicating lamps are surrounded into a circle and are arranged around the intelligent sound box shell, and light is uniformly distributed around the intelligent sound box shell in work, so that the LED dynamic display effect is better.

Preferably, the main control assembly is an AIP8F1032 chip, the control signal input circuit is connected to the main control assembly through an RXD port and a TXD port, and the main control assembly is connected to the input terminal of the first LED control assembly through an MOSI port. Compared with the traditional control scheme, the AIP8F1032 chip is used as the main control assembly, the main control assembly is connected with the input end of the LED control assembly through the MOSI port on the main control assembly, and the control signal transmission function can be realized only by connecting one data line, so that the peripheral circuit is simplified.

Preferably, the LED control assembly is an SK6812 chip, the main control assembly is connected to the DI port of the first LED control assembly through an MOSI port, the DO port of the previous LED control assembly is connected to the DI port of the next LED control assembly, and the DO port of the last LED control assembly is connected to the air; the LED control assembly is grounded through a grounding end thereof. And an SK6812 chip is adopted as an LED control component, so that full-color control is facilitated.

As shown in fig. 2, the DI port of the LED control assembly is provided in series with a resistor R. Through series resistance R, can reduce the electromagnetic interference of main control subassembly to LED control assembly.

As shown in fig. 2, in a group of LED indicator light groups, the anodes of the R-type LED light, the G-type LED light, and the B-type LED light are connected to the power input circuit, and the cathodes of the R-type LED light, the G-type LED light, and the B-type LED light are connected to the LED control assembly; and the anodes of the R-type LED lamp, the G-type LED lamp and the B-type LED lamp are grounded through a decoupling capacitor C. A decoupling capacitor C is arranged in parallel at the power input end of each LED control assembly, and the working voltage input to the LED control assemblies can be stabilized.

As shown in fig. 3, the power input circuit includes a resistor R1, a resistor R2, a zener diode ZD1, a transistor Q1, a capacitor C1, a capacitor C2, and a power input interface; an external power supply is connected with a C electrode of a triode Q1 through a resistor R1, an E electrode of the triode Q1 is connected with the main control assembly and the LED indicator lamp sets through a power supply input interface, the external power supply and the resistor R1 are grounded through a capacitor C1, and an E electrode of the triode Q1 is grounded through a capacitor C2; the external power supply is connected with the B pole of the triode Q1 through the resistor R2, the B pole of the triode Q1 is also connected with the negative pole of the zener diode ZD1, and the positive pole of the zener diode ZD1 is grounded. By adopting the circuit structure, higher and unstable input voltage can be adjusted into stable output voltage with proper voltage, so that the device can be normally used.

As shown in fig. 4, the control signal input circuit includes a resistor R3, a resistor R4, a resistor R5, a resistor R6, a transistor Q2, and a transistor Q3; the TXD port of the main control component is connected with the B pole of a triode Q2 through a resistor R3, the E pole of the triode Q2 is grounded, the C pole of the triode Q2 is connected with the B pole of a triode Q3 through a resistor R4, the B pole of the triode Q3 is connected with VCC through a resistor R5, the E pole of the triode Q3 is connected with VCC, the C pole of the triode Q3 is grounded through a resistor R6, and the RXD port of the main control component is connected between the C pole of the triode Q3 and the resistor R6. By adopting the circuit structure, the external logic level can be converted into the logic level of the main control assembly in the device, and the reception of the external command is realized.

Combine fig. 1, fig. 2, fig. 3 and fig. 4 analysis, the utility model provides an intelligence audio amplifier LED dynamic display device includes main control assembly 1, a plurality of LED control assembly 2 and a plurality of and LED control assembly one-to-one's LED pilot lamp group 3. In operation, the power input circuit 4 supplies 5V of operating power to the other components. The main control assembly 1 receives control commands transmitted by other control circuits in the intelligent loudspeaker box through the RXD port and the TXD port, the main control assembly 1 sends control signals to the corresponding LED control assemblies 2 as required, each LED control assembly 2 controls the corresponding LED indicating lamp group, the brightness of the R-type LED lamp, the G-type LED lamp and the B-type LED lamp in the control lamp group is controlled, and LED full-color display is achieved. The main control assembly controls the brightness of the LED in each LED control assembly in real time, and dynamic pictures can be realized.

Compared with the prior art, the technical scheme has the following beneficial effects: firstly, in a traditional intelligent sound box control scheme, a main control assembly needs to be provided with two I/O ports which are respectively used as a data line and a clock line, and control commands or data are transmitted to a peripheral control unit through the two I/O ports; based on the technical scheme, only one data line is needed to be connected between the main control assembly and the LED control assembly, and data and a clock are transmitted through the data line in a composite mode, so that a peripheral circuit is simplified. And the LED control assemblies are connected end to end and are also connected through a data line, and commands or data sent by the main control assembly can be accurately transmitted to the next LED control assembly from one LED control assembly, so that the number of LED indicator lamp groups can be increased or reduced conveniently as required, the flexibility of the scheme during modification is improved, and the corresponding workload is reduced. Thirdly, the device can adjust the internal parameters of the power input port and can be suitable for a wider input voltage range.

Specifically, the main control component is an AIP8F1032 chip, and receives an external command sent by the intelligent sound box main control board by using a UART function inside the AIP8F1032 chip; the control signal is sent by utilizing the SPI function in the AIP8F1032 chip, and each LED control assembly is output and controlled, so that full-color dynamic display is realized. The main control assembly controls the LED indicating lamp set to make different display modes according to the received external command, and different working states of the intelligent sound box are reflected. The transmission frequency of the SPI can be set to be 8MHZ by the SPI function in the AIP8F1032 chip, so that the output time of each byte is 1uS, and the MOSI output signal of the SPI accords with the signal coding of an LED control assembly through software design, so that the LED brightness control is realized.

The LED control component is an SK6812 chip, a 24-bit control register is arranged in the SK6812 chip, 8-bit control R type LED lamps, 8-bit control G type LED lamps and 8-bit control B type LED lamps are arranged, 256 brightness levels can be set for each color, commands or data are input in a specific coding mode, and full-color control can be achieved.

Preferably, the power input end of each LED control assembly is connected in parallel with a decoupling capacitor C to stabilize the operating voltage input to the LED control assembly. The DI port of each LED control assembly is connected with a resistor R in series, and the change rate of DI of serial signals is reduced through the resistor R in series, so that electromagnetic interference generated by the LED control assemblies is reduced.

As shown in fig. 3, the power input circuit is composed of a resistor R1, a resistor R2, a zener diode ZD1, a transistor Q1, a capacitor C1 and a capacitor C2. An external power supply Vin is input from a resistor R1 and a resistor R2 through voltage stabilization and filtering of a capacitor C1, and the resistor R2 and a voltage stabilizing diode ZD1 are connected to form a loop. When the main circuit works, current is reduced through the resistor R1, voltage is added to the C electrode of the triode Q1, therefore, the two ends of the voltage stabilizing diode ZD1 have about 5.2V reference voltage, the output voltage of the output voltage under different load conditions is kept unchanged through the voltage regulating effect of the triode Q1, meanwhile, the capacitor C2 can absorb ripple waves generated by a circuit switch, and the stability of the output voltage is kept to a certain degree. The higher and unstable input voltage can be adjusted to a stable output voltage through the above process.

As shown in fig. 4, the control signal input circuit includes a resistor R3, a resistor R4, a resistor R5, a resistor R6, a transistor Q2, and a transistor Q3. The control signal input circuit inputs through a serial UART form, but the input logic level is different from the logic level of the main control assembly, and corresponding level conversion is needed. When the logic level of the input signal TXD port is zero, the triode Q2 is turned off, the resistor R4 and the resistor R5 do not form a conducting loop, the voltage at the two ends of the resistor R5 is zero, the triode Q3 is turned off, the output level of the RXD port signal is zero, and the logic low level of the RXD port signal received by the main control assembly is low. Transistor Q2 is turned on when the high level of the TXD input signal is input through resistor R3. A conductive loop is formed among the resistor R4, the resistor R5 and the transistor Q2, and current flows from the positive electrode of the VCC working power supply to the ground through the resistor R4, the resistor R5 and the C electrode and the E electrode of the transistor Q2. The resistor R5 has a voltage due to the current flowing through it, the voltage makes the transistor Q3 conduct, the output level of the signal at the RXD port is the VCC working level, and the main control module receives the logic high level of the signal at the RXD port. Through the working process, the external logic level can be converted into the logic level of the main control assembly, and the external command is received.

To sum up, the utility model provides an intelligent sound box LED dynamic display device, which comprises a main control component, a plurality of LED control components, a plurality of LED indicating lamp groups, a power input circuit and a control signal input circuit, wherein one LED indicating lamp group comprises an R-type LED lamp, a G-type LED lamp and a B-type LED lamp which are connected in parallel; the main control assembly is connected with an external power supply through the power supply input circuit and receives a control signal through the control signal input circuit; the LED control assemblies are sequentially connected end to end, the input end of the first LED control assembly is connected with the output end of the main control assembly, the output end of the previous LED control assembly is connected with the input end of the next LED control assembly, and the output end of the last LED control assembly is in idle connection; the LED control assembly corresponds to the LED indicating lamp group one by one, and the power input circuit is connected with the LED control assembly through the LED indicating lamp group. Compared with the prior art, the technical scheme has the beneficial effects that: LED lamp beads of three primary colors are arranged in one group of LED indicating lamp groups, and after the main control assembly receives the control signals, the LED indicating lamp groups are correspondingly controlled by the LED control assemblies respectively, so that LED dynamic display of the intelligent sound box can be realized by a simple circuit structure.

It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims (8)

1. An intelligent sound box LED dynamic display device is characterized by comprising a main control assembly, a plurality of LED control assemblies, a plurality of LED indicator lamp groups, a power input circuit and a control signal input circuit, wherein one LED indicator lamp group comprises an R-type LED lamp, a G-type LED lamp and a B-type LED lamp which are connected in parallel;

the main control assembly is connected with an external power supply through the power supply input circuit and receives a control signal through the control signal input circuit;

the LED control assemblies are sequentially connected end to end, the input end of the first LED control assembly is connected with the output end of the main control assembly, the output end of the previous LED control assembly is connected with the input end of the next LED control assembly, and the output end of the last LED control assembly is in idle connection;

the LED control assembly corresponds to the LED indicating lamp group one by one, and the power input circuit is connected with the LED control assembly through the LED indicating lamp group.

2. The LED dynamic display device for the intelligent sound box according to claim 1, wherein 15-25 LED indicator lamp groups are arranged, a circle is enclosed among the LED indicator lamp groups, and correspondingly, 15-25 LED control assemblies are arranged.

3. A smart speaker LED dynamic display device as claimed in claim 1, wherein the main control module is an AIP8F1032 chip, the control signal input circuit is connected to the main control module through an RXD port and a TXD port, and the main control module is connected to the input terminal of the first LED control module through an MOSI port.

4. The LED dynamic display device of claim 3, wherein the LED control component is an SK6812 chip, the main control component is connected to the DI port of the first LED control component through an MOSI port, the DO port of the previous LED control component is connected to the DI port of the next LED control component, and the DO port of the last LED control component is connected in an idle state; the LED control assembly is grounded through a grounding end thereof.

5. The LED dynamic display device for the smart sound box of claim 1, wherein a resistor R is arranged in series at a DI port of the LED control component.

6. The LED dynamic display device of claim 1, wherein in one LED indicator light group, the anodes of the R-type LED light, the G-type LED light and the B-type LED light are connected to the power input circuit, and the cathodes of the R-type LED light, the G-type LED light and the B-type LED light are connected to the LED control assembly; and the anodes of the R-type LED lamp, the G-type LED lamp and the B-type LED lamp are grounded with the power input circuit through a decoupling capacitor C.

7. The LED dynamic display device for the intelligent sound box is characterized in that the power input circuit comprises a resistor R1, a resistor R2, a voltage stabilizing diode ZD1, a triode Q1, a capacitor C1, a capacitor C2 and a power input interface;

an external power supply is connected with a C electrode of a triode Q1 through a resistor R1, an E electrode of the triode Q1 is connected with the main control assembly and the LED indicator lamp sets through a power supply input interface, the external power supply and the resistor R1 are grounded through a capacitor C1, and an E electrode of the triode Q1 is grounded through a capacitor C2;

the external power supply is connected with the B pole of the triode Q1 through the resistor R2, the B pole of the triode Q1 is also connected with the negative pole of the zener diode ZD1, and the positive pole of the zener diode ZD1 is grounded.

8. The LED dynamic display device for the smart sound box of claim 3, wherein the control signal input circuit comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a transistor Q2 and a transistor Q3;

the TXD port of the main control component is connected with the B pole of a triode Q2 through a resistor R3, the E pole of the triode Q2 is grounded, the C pole of the triode Q2 is connected with the B pole of a triode Q3 through a resistor R4, the B pole of the triode Q3 is connected with VCC through a resistor R5, the E pole of the triode Q3 is connected with VCC, the C pole of the triode Q3 is grounded through a resistor R6, and the RXD port of the main control component is connected between the C pole of the triode Q3 and the resistor R6.

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