Printed circuit board (PCB) capable of directly installing mechanical shaft, mechanical shaft and keyboard

Abstract

The invention discloses a PCB capable of directly installing a mechanical shaft, the mechanical shaft and a keyboard, the PCB is provided with a plurality of slotted holes, the PCB is fixed with the mechanical shaft through the slotted holes, each mechanical shaft is correspondingly provided with a chip, and the chip is connected with the PCB through the slotted holes. The chip is one of a full color control chip, a full load color control chip, a confluence color control chip, a load color control chip, a fantasy color control chip, a full outer color control chip, a fantasy outer color control chip, a full device control chip and a fantasy device control chip. The mechanical shaft can be directly installed on the PCB, the mechanical shaft can be repeatedly inserted into and pulled out of the PCB, installation is simple and convenient, and the material cost and the assembly cost are reduced. According to the keyboard, a special shaft body fixing plate is not needed, the mechanical shaft can be directly installed on the PCB, and the height of the keyboard is also reduced.

Description

Technical Field

[0001] This invention relates to mechanical keyboards, and more particularly to a PCB, mechanical switches, and keyboard that can be directly mounted with mechanical switches. Background Technology

[0002] The mechanical switches of traditional mechanical keyboards all have dedicated mounting plates. During assembly, the dedicated mounting plate of the mechanical switch must be firmly locked to the PCB, which is costly and has a large assembly error. Mechanical switches with RGB indicators have many components, and the MCU with USB function has at least 30 pins. Most of them are double-sided boards. If they are made into single-sided boards, hundreds more components will be added. The MCU can only be built into the mechanical switch PCB. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies of existing technologies and provide a PCB that can directly mount mechanical axes. This invention uses a DIO to transmit RGB color grayscale via parallel data lines, and writes address codes through a dedicated address code input pin and a serial data line network formed by cascading address code output pins. This reduces the difficulty of address code writing and PCB design, significantly reduces the number of electronic components, and provides various custom code transmission methods and operating modes, making its application simpler, more efficient, and more reliable.

[0004] Another object of the present invention is to provide a mechanical shaft.

[0005] Another object of the present invention is to provide a keyboard.

[0006] The objective of this invention is achieved through the following technical solution: A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding full-color chip. The Yuquancai chip contains GRB LEDs and integrates a control signal interface circuit, a GRB color driving circuit, an address code memory, and a serial communication circuit with a single bus in series and parallel connections. It includes control signal interface pins, power supply pins, ground pins, parallel data line pins, address code input pins, and address code output pins. The power supply pin is used to power the Yuquancai chip, and the ground pin is used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit of the serial bus in series and parallel connection. The address code input pins and address code output pins of n full-color chips are cascaded to form a series data line network DIN(1)-DOUT(n). The two ends of the series data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU writes the sequence bit formed by the cascaded full-color chips into the address code memory through the series data line network DIN(1)-DOUT(n) and uses it as the communication address code. The power supply pins of n full-color chips are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the parallel data line pins are connected in parallel to form a parallel data line network DIO, which is then connected to the MCU. Serial-parallel single-bus serial communication circuits are used to process serial data line network information and parallel data line network information. GRB RGB information and mechanical switch control information can be transmitted on the parallel data line network DIO; GRB RGB information and mechanical switch control information can also be transmitted on the serial data line network DIN(1)-DOUT(n); Both the parallel data line network DIO and the serial data line network DIN(1)-DOUT(n) use the serial single-bus communication protocol to transmit GRB color information and mechanical switch control information, and are hot backups for each other.

[0007] A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding Yuhuicai chip. The Yuhui Color chip contains GRB LED beads and integrates a control signal interface circuit, a GRB color driving circuit, a parallel single-bus serial communication circuit, and an address code memory; it includes control signal interface pins, power supply pins, ground pins, and parallel data line pins. The power supply pins are used to power the Yuhui Color chip, and the ground pins are used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the parallel single-bus serial communication circuit. The parallel data lines are connected together to form a parallel data line network (DIO), which is then connected to the MCU. The address code of the Yuhuicai chip is written into the address code memory through an external fixture and used as the communication address code. Parallel single-bus serial communication circuits are used to process information from parallel data line networks; GRB RGB information and mechanical switch control information are transmitted on the parallel data line network DIO; The parallel data line network uses a serial single-bus communication protocol to transmit GRB holographic information and mechanical switch control information.

[0008] A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding color chip. The chip contains GRB LEDs and integrates a control signal interface circuit, a GRB color driving circuit, an address code memory, and a parallel single-bus serial communication circuit. It includes a control signal interface pin, a power supply pin, and a ground pin. The power supply pin is used to power the chip and transmit information, and the ground pin is used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the parallel single-bus serial communication circuit. Data information is modulated and transmitted to the MCU via power line carrier on the power network VCC, which is also the parallel carrier data line network VCC (DIO); the address code of the carrier chip is written into the address code memory through an external fixture and used as the communication address code; Parallel single-bus serial communication circuits are used to process information from parallel carrier data line networks; GRB holographic information and mechanical switch control information can be transmitted on the parallel carrier data line network VCC (DIO); The parallel carrier data line network uses a serial single-bus communication protocol to transmit GRB holographic information and mechanical switch control information.

[0009] A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding iridescent chip. The Yuhuancai chip contains GRB LED beads and integrates a control signal interface circuit, a GRB RGB driver circuit, and a serial single-bus serial communication circuit, including a control signal interface pin, a power supply pin, a ground pin, a serial signal input pin, and a serial signal output pin; the power supply pin is used to power the Yuhuancai chip, and the ground pin is used for signal grounding and power grounding; The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit via a series single bus. The serial signal input pins and serial signal output pins of n GRB chips are cascaded to form a serial data line network DIN(1)-DOUT(n). The two ends of the serial data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU transmits GRB information and mechanical switch control information to the MCU through the serial data line network DIN(1)-DOUT(n). A serial single-bus serial communication circuit is used to process information from a serial data line network. Both GRB RGB information and mechanical switch control information are transmitted on the serial data line network DIN(1)-DOUT(n); The serial data line network uses a serial single-bus communication protocol to transmit GRB holographic information and mechanical switch control information.

[0010] A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding Yuquan external color chip. The Yuquan external color chip is used to drive external LED beads and integrates a control signal interface circuit, a GRB color driving circuit, an address code memory, and a serial communication circuit with a single bus. It includes control signal interface pins, power supply pins, ground pins, parallel data line pins, address code input pins, address code output pins, G pins, R pins, and B pins. The power supply pin is used to power the Yuquan external color chip, and the ground pin is used for signal grounding and power grounding. The G pin, R pin, and B pin are respectively connected to the external green LED, red LED, and blue LED. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit of the serial bus in series and parallel connection. The address code input pins and address code output pins of n Yuquan external color chips are cascaded to form a series data line network DIN(1)-DOUT(n). The two ends of the series data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU writes the sequence bit formed by the cascaded Yuquan external color chips into the address code memory through the series data line network DIN(1)-DOUT(n) and uses it as the communication address code. The power supply pins of n Yuquan external color chips are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the parallel data line pins are connected in parallel to form a parallel data line network DIO, which is then connected to the MCU. Serial-parallel single-bus serial communication circuits are used to process serial data line network information and parallel data line network information. GRB RGB information and mechanical switch control information can be transmitted on the parallel data line network DIO; GRB RGB information and mechanical switch control information can also be transmitted on the serial data line network DIN(1)-DOUT(n); Both the parallel data line network DIO and the serial data line network DIN(1)-DOUT(n) use the serial single-bus communication protocol to transmit GRB color information and mechanical switch control information, and are hot backups for each other.

[0011] A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding iFlytek chip. The Yuhuan external color chip is used to drive external LED beads and integrates a control signal interface circuit, a GRB color driving circuit, and a serial single-bus serial communication circuit. It includes a control signal interface pin, a power supply pin, a ground pin, a serial signal input pin, a serial signal output pin, a G pin, an R pin, and a B pin. The power supply pin is used to supply power to the Yuhuan external color chip, and the ground pin is used for signal grounding and power grounding. The G pin, R pin, and B pin are respectively connected to the external green LED, red LED, and blue LED. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit via a series single bus. The serial signal input pins and serial signal output pins of n Yuhuan external color chips are cascaded to form a serial data line network DIN(1)-DOUT(n). The two ends of the serial data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU transmits the GRB color information and mechanical switch control information to the MCU through the serial data line network DIN(1)-DOUT(n). A serial single-bus serial communication circuit is used to process information from a serial data line network. Both GRB RGB information and mechanical switch control information are transmitted on the serial data line network DIN(1)-DOUT(n); The serial data line network DIN(1)-DOUT(n) uses a serial single-bus communication protocol to transmit GRB RGB information and mechanical switch control information.

[0012] A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding controller chip. The controller chip integrates a control signal interface circuit, an address code memory, and a serial communication circuit with a single bus; it includes control signal interface pins, power supply pins, ground pins, parallel data line pins, address code input pins, and address code output pins; the power supply pin is used to power the controller chip, and the ground pin is used for signal grounding and power grounding; The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit of the serial bus in series and parallel connection. The address code input pins and address code output pins of n controller chips are cascaded to form a serial data line network DIN(1)-DOUT(n). The two ends of the serial data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU writes the sequence bit formed by the cascaded controller chips into the address code memory through the serial data line network DIN(1)-DOUT(n) and uses it as the communication address code. The power supply pins of the n controller chips are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the parallel data line pins are connected in parallel to form a parallel data line network DIO, which is then connected to the MCU. Serial-parallel single-bus serial communication circuits are used to process serial data line network information and parallel data line network information. Mechanical switch control information can be transmitted on the parallel data line network (DIO). Mechanical switch control information can also be transmitted on the serial data line network DIN(1)-DOUT(n); Both the parallel data line network DIO and the serial data line network DIN(1)-DOUT(n) use the serial single-bus communication protocol to transmit mechanical switch control information and serve as hot backups for each other.

[0013] A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding device chip. The device chip integrates a control signal interface circuit and a serial single-bus serial communication circuit, including a control signal interface pin, a power supply pin, a ground pin, a serial signal input pin, and a serial signal output pin; the power supply pin is used to power the device chip, and the ground pin is used for signal grounding and power grounding; The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit via a series single bus. The serial signal input pins and serial signal output pins of n control chip are cascaded to form a serial data line network DIN(1)-DOUT(n). The two ends of the serial data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU transmits the mechanical switch control information to the MCU through the serial data line network DIN(1)-DOUT(n). A serial single-bus serial communication circuit is used to process information from a serial data line network. Mechanical switch control information is transmitted on the serial data line network DIN(1)-DOUT(n); The serial data line network uses a serial single-bus communication protocol to transmit mechanical switch control information.

[0014] A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding full-color chip. The Yuquan color chip contains GRB LEDs and integrates a control signal interface circuit, a GRB color driving circuit, an address code memory, and a serial communication circuit with a single bus. It includes control signal interface pins, power supply pins, ground pins, address code input pins, and address code output pins. The power supply pins are used to power the Yuquan color chip and transmit information, while the ground pins are used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit of the serial bus in series and parallel connection. The address code input pins and address code output pins of n Yuquan Carrier Color chips are cascaded to form a series data line network DIN(1)-DOUT(n). The two ends of the series data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU writes the sequence bit formed by the cascaded Yuquan Carrier Color chips into the address code memory through the series data line network DIN(1)-DOUT(n) and uses it as the communication address code. The power supply pins of the n Yuquan Carrier Color chips are connected in parallel to share the power supply network VCC, and the ground pins are connected in parallel to share the ground network GND. The data information is modulated on the power supply network VCC and transmitted to the MCU via power line carrier. The power supply network VCC is the parallel carrier data line network VCC(DIO). Serial-parallel single-bus serial communication circuits are used to process serial data line network information and parallel carrier data line network information. GRB holographic information and mechanical switch control information can be transmitted on the parallel carrier data line network VCC (DIO); GRB RGB information and mechanical switch control information can also be transmitted on the serial data line network DIN(1)-DOUT(n); Both the parallel carrier data line network and the serial data line network use the serial single-bus communication protocol to transmit GRB holographic information and mechanical switch control information, and are hot-standby for each other.

[0015] Another objective of this invention is achieved through the following technical solution: A mechanical shaft has a snap-fit ​​mechanism on its shaft body that is fixed to a slot on the PCB, and the mechanical shaft can be repeatedly inserted into and removed from the PCB.

[0016] Another objective of this invention is achieved through the following technical solution: A keyboard includes the aforementioned PCB and a mechanical switch corresponding to the aforementioned PCB and capable of being repeatedly plugged into and removed from the PCB.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. This invention eliminates the need for a dedicated shaft fixing plate, further reducing material and assembly costs.

[0018] 2. This invention also reduces the keyboard height, making the keyboard more ergonomic.

[0019] 3. The overall circuit of this invention, composed of a full-color chip, a full-load color chip, a color-coordinated chip, a color-coordinated chip, a color-coordinated chip, a color-coordinated chip, a color-coordinated chip, a full-color chip, a color-coordinated chip, a color-coordinated chip, a color-coordinated chip, a color-coordinated chip, or a color-coordinated chip, is simpler, and the PCB can be made as a single-sided PCB, which improves reliability and reduces cost.

[0020] 4. The overall circuit of this invention, composed of a full-color chip, a full-load color chip, a color-coordinated chip, a color-coordinated chip, a color-coordinated chip, a color-coordinated chip, a color-coordinated chip, a full-color chip, a color-coordinated chip, a color-coordinated chip, a color-coordinated chip, or a color-coordinated chip, is simpler. The MCU with USB function only needs 6 pins to complete the communication between the keyboard and the computer, which further reduces the cost.

[0021] 5. The overall circuit of this invention, composed of a full-color chip, a full-load color chip, a color-enhancing chip, a color-enhancing chip, a color-enhancing chip, a color-enhancing chip, a full-color external chip, a color-enhancing external chip, a full-function chip, or a magic chip, is simpler. The MCU with USB function can be externally placed at the wire end, making the heart of the keyboard less susceptible to contamination by external liquids and dust. The MCU has good reliability, and the reliability and stability of the keyboard are further enhanced.

[0022] 6. This invention uses a full-color chip, or a full-carrier color chip, or a full-external color chip, or a full-device chip as a serial communication circuit connected in series and parallel. The series and parallel connections serve as hot standby for each other. This hot standby is not a simple repetitive dual-serial hot standby, nor is it the same as a simple dual-parallel hot standby. The series-parallel hot standby has stronger complementarity, better hot standby effect, and more stable performance.

[0023] 7. The present invention uses a full-color chip, or a full-carrier color chip, or a full-external color chip, or a full-device chip to write code, which can be completed by the serial data network formed by the cascading of the chips themselves. It does not require any external fixtures, the process is simple, the reliability and stability are improved, and the manufacturing cost is reduced.

[0024] 8. This invention omits the dedicated switch plate, thus having a natural advantage in making ultra-thin keyboards; furthermore, the mechanical switches can be made into ultra-thin switches, further reducing the thickness of the ultra-thin keyboard and making it an ultra-thin keyboard.

[0025] 9. In order to minimize power consumption, the control signal interface pin of this invention operates in a time-division multiplexing manner: when the button is being detected, it is an input port (INPUT); when the button is not being detected, the control signal interface pin is an output port (OUTPUT), which can output a low level, and the button is in a zero power consumption state. Attached Figure Description

[0026] Figure 1 This is a functional schematic diagram of the full-color chip described in Embodiment 1 of the present invention.

[0027] Figure 2 This is a functional schematic diagram of the Yuhuicai chip described in Embodiment 2 of the present invention.

[0028] Figure 3 This is a functional schematic diagram of the color chip described in Embodiment 3 of the present invention.

[0029] Figure 4 This is a functional schematic diagram of the iridescent chip described in Embodiment 4 of the present invention.

[0030] Figure 5 This is a functional schematic diagram of the Yuquan external color chip described in Embodiment 5 of the present invention.

[0031] Figure 6 This is a functional schematic diagram of the Yuhuan external color chip described in Embodiment 6 of the present invention.

[0032] Figure 7 This is a functional schematic diagram of the controller chip described in Embodiment 7 of the present invention.

[0033] Figure 8 This is a functional schematic diagram of the device chip described in Embodiment 8 of the present invention.

[0034] Figure 9 This is an exploded view of the mechanical shaft described in this invention.

[0035] Figure 10 This is a schematic diagram of the overall structure of the mechanical shaft described in this invention.

[0036] Figure 11 This is a schematic diagram of the PCB and mechanical shaft mounting structure described in this invention.

[0037] Figure 12 This is a schematic diagram of the PCB structure described in this invention.

[0038] Figure 13 This is a partial structural diagram of a PCB containing only one full-color chip in Embodiment 1 of the present invention.

[0039] Figure 14 This is an electrical connection diagram between the mechanical shaft and the full-color chip described in this invention.

[0040] Figure 15 This is a functional schematic diagram of the full-color chip described in Embodiment 9 of the present invention.

[0041] The meanings of the reference numerals in the attached figures are as follows: 1-Snap fastener, 2-Metal pin, 3-Slot, 4-First through hole, 5-Second through hole, 6-Full-color chip, 7-Metal pin pad hole. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto. Example 1

[0043] A PCB that can directly mount mechanical axes has several slots 3 on it, through which the PCB is fixed to the mechanical axes, such as... Figure 14 Each mechanical axis is equipped with a corresponding full-color chip 6; like Figure 1 The Yuquancai chip 6 contains GRB LED beads and integrates a control signal interface circuit, a GRB color driving circuit, an address code memory, and a serial communication circuit with a single bus in series and parallel connection. It includes control signal interface pins, power supply pins, ground pins, parallel data line pins, address code input pins, and address code output pins. The power supply pin is used to supply power to the Yuquancai chip 6, and the ground pin is used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit of the serial bus in series and parallel connection. The address code input pins and address code output pins of n Yuquancai chips 6 are cascaded to form a series data line network DIN(1)-DOUT(n). The two ends of the series data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU writes the sequence bit formed by the cascaded Yuquancai chips 6 into the address code memory through the series data line network DIN(1)-DOUT(n) and uses it as the communication address code. The power supply pins of n Yuquancai chips 6 are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the parallel data line pins are connected in parallel to form a parallel data line network DIO, which is then connected to the MCU. Serial-parallel single-bus serial communication circuits are used to process serial data line network information and parallel data line network information. GRB RGB information and mechanical switch control information can be transmitted on the parallel data line network DIO; GRB RGB information and mechanical switch control information can also be transmitted on the serial data line network DIN(1)-DOUT(n); Both the parallel data line network DIO and the serial data line network DIN(1)-DOUT(n) use the serial single-bus communication protocol to transmit GRB color information and mechanical switch control information, and are hot backups for each other.

[0044] like Figures 11 to 13 The PCB has several slots 3 and second through holes 5. The mechanical axis is inserted into the PCB through the second through hole 5 and fixed to the PCB through the slot 3. Each mechanical axis is provided with a first through hole 4. The full-color chip 6 is inserted into the first through hole 4 from below the PCB. There are two metal pin pad holes 7 next to the first through hole 4. The two metal pins 2 of the mechanical axis are fixed through the metal pin pad holes 7.

[0045] like Figure 9 and Figure 10 As shown, the mechanical axis has a buckle 1 and two metal pins 2. The buckle 1 is fixed to the slot 3 on the PCB, and the two metal pins 2 are fixed to the metal pin pad holes 7 on the PCB. The mechanical axis can be repeatedly inserted and removed from the PCB. When the mechanical axis is pressed, the two metal pins 2 make contact and conduction, sending a control signal to the full-color chip 6.

[0046] A keyboard includes the aforementioned PCB and a mechanical switch corresponding to the aforementioned PCB and capable of being repeatedly plugged into and removed from the PCB. Example 2

[0047] Example 2 is identical to Example 1 except for the following content: A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding Yuhuicai chip. like Figure 2 The Yuhui Color chip contains GRB LED beads and integrates a control signal interface circuit, a GRB color driving circuit, a parallel single-bus serial communication circuit, and an address code memory; it includes control signal interface pins, power supply pins, ground pins, and parallel data line pins. The power supply pins are used to supply power to the Yuhui Color chip, and the ground pins are used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the parallel single-bus serial communication circuit. The parallel data lines are connected together to form a parallel data line network (DIO), which is then connected to the MCU. The address code of the Yuhuicai chip is written into the address code memory through an external fixture and used as the communication address code. Parallel single-bus serial communication circuits are used to process information from parallel data line networks; GRB RGB information and mechanical switch control information are transmitted on the parallel data line network DIO; The parallel data line network uses a serial single-bus communication protocol to transmit GRB holographic information and mechanical switch control information. Example 3

[0048] Example 3 is identical to Example 1 except for the following content: A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding color chip. like Figure 3 The chip contains GRB LEDs and integrates a control signal interface circuit, a GRB color driving circuit, an address code memory, and a parallel single-bus serial communication circuit. It includes a control signal interface pin, a power supply pin, and a ground pin. The power supply pin is used to power the chip and transmit information, and the ground pin is used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the parallel single-bus serial communication circuit. Data information is modulated and transmitted to the MCU via power line carrier on the power network VCC, which is also the parallel carrier data line network VCC (DIO); the address code of the carrier chip is written into the address code memory through an external fixture and used as the communication address code; Parallel single-bus serial communication circuits are used to process information from parallel carrier data line networks; GRB holographic information and mechanical switch control information can be transmitted on the parallel carrier data line network VCC (DIO); The parallel carrier data line network uses a serial single-bus communication protocol to transmit GRB holographic information and mechanical switch control information. Example 4

[0049] Example 4 is identical to Example 1 except for the following content: A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding iridescent chip. like Figure 4 The Yuhuancai chip contains GRB LED beads and integrates a control signal interface circuit, a GRB RGB driver circuit, and a serial single-bus serial communication circuit, including a control signal interface pin, a power supply pin, a ground pin, a serial signal input pin, and a serial signal output pin; the power supply pin is used to supply power to the Yuhuancai chip, and the ground pin is used for signal grounding and power grounding; The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit via a series single bus. The serial signal input pins and serial signal output pins of n GRB chips are cascaded to form a serial data line network DIN(1)-DOUT(n). The two ends of the serial data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU transmits GRB information and mechanical switch control information to the MCU through the serial data line network DIN(1)-DOUT(n). A serial single-bus serial communication circuit is used to process information from a serial data line network. Both GRB RGB information and mechanical switch control information are transmitted on the serial data line network DIN(1)-DOUT(n); The serial data line network uses a serial single-bus communication protocol to transmit GRB holographic information and mechanical switch control information. Example 5

[0050] Example 5 is identical to Example 1 except for the following content: A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding Yuquan external color chip. like Figure 5 The Yuquan external color chip is used to drive external LED beads and integrates a control signal interface circuit, a GRB color driving circuit, an address code memory, and a serial communication circuit with a single bus. It includes control signal interface pins, power supply pins, ground pins, parallel data line pins, address code input pins, address code output pins, G pins, R pins, and B pins. The power supply pin is used to supply power to the Yuquan external color chip, and the ground pin is used for signal grounding and power grounding. The G pin, R pin, and B pin are respectively connected to external green LEDs, red LEDs, and blue LEDs. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit of the serial bus in series and parallel connection. The address code input pins and address code output pins of n Yuquan external color chips are cascaded to form a series data line network DIN(1)-DOUT(n). The two ends of the series data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU writes the sequence bit formed by the cascaded Yuquan external color chips into the address code memory through the series data line network DIN(1)-DOUT(n) and uses it as the communication address code. The power supply pins of n Yuquan external color chips are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the parallel data line pins are connected in parallel to form a parallel data line network DIO, which is then connected to the MCU. Serial-parallel single-bus serial communication circuits are used to process serial data line network information and parallel data line network information. GRB RGB information and mechanical switch control information can be transmitted on the parallel data line network DIO; GRB RGB information and mechanical switch control information can also be transmitted on the serial data line network DIN(1)-DOUT(n); Both the parallel data line network DIO and the serial data line network DIN(1)-DOUT(n) use the serial single-bus communication protocol to transmit GRB color information and mechanical switch control information, and are hot backups for each other. Example 6

[0051] Example 6 is identical to Example 1 except for the following content: A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding iFlytek chip. like Figure 6 The aforementioned Yuhuan external color chip is used to drive external LED beads and integrates a control signal interface circuit, a GRB color driving circuit, and a serial single-bus serial communication circuit; it includes a control signal interface pin, a power supply pin, a ground pin, a serial signal input pin, a serial signal output pin, a G pin, an R pin, and a B pin; the power supply pin is used to supply power to the Yuhuan external color chip, and the ground pin is used for signal grounding and power grounding; the G pin, R pin, and B pin are respectively connected to external green LEDs, red LEDs, and blue LEDs; The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit via a series single bus. The serial signal input pins and serial signal output pins of n Yuhuan external color chips are cascaded to form a serial data line network DIN(1)-DOUT(n). The two ends of the serial data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU transmits the GRB color information and mechanical switch control information to the MCU through the serial data line network DIN(1)-DOUT(n). A serial single-bus serial communication circuit is used to process information from a serial data line network. Both GRB RGB information and mechanical switch control information are transmitted on the serial data line network DIN(1)-DOUT(n); The serial data line network DIN(1)-DOUT(n) uses a serial single-bus communication protocol to transmit GRB RGB information and mechanical switch control information. Example 7

[0052] Example 7 is identical to Example 1 except for the following content: A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding controller chip. like Figure 7 The controller chip integrates a control signal interface circuit, an address code memory, and a serial communication circuit with a single bus; it includes control signal interface pins, power supply pins, ground pins, parallel data line pins, address code input pins, and address code output pins; the power supply pins are used to power the controller chip, and the ground pins are used for signal grounding and power grounding; The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit of the serial bus in series and parallel connection. The address code input pins and address code output pins of n controller chips are cascaded to form a serial data line network DIN(1)-DOUT(n). The two ends of the serial data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU writes the sequence bit formed by the cascaded controller chips into the address code memory through the serial data line network DIN(1)-DOUT(n) and uses it as the communication address code. The power supply pins of the n controller chips are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the parallel data line pins are connected in parallel to form a parallel data line network DIO, which is then connected to the MCU. Serial-parallel single-bus serial communication circuits are used to process serial data line network information and parallel data line network information. Mechanical switch control information can be transmitted on the parallel data line network (DIO). Mechanical switch control information can also be transmitted on the serial data line network DIN(1)-DOUT(n); Both the parallel data line network DIO and the serial data line network DIN(1)-DOUT(n) use the serial single-bus communication protocol to transmit mechanical switch control information and serve as hot backups for each other. Example 8

[0053] Example 8 is identical to Example 1 except for the following content: A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding device chip. like Figure 8 The device chip integrates a control signal interface circuit and a serial single-bus serial communication circuit, including a control signal interface pin, a power supply pin, a ground pin, a serial signal input pin, and a serial signal output pin; the power supply pin is used to power the device chip, and the ground pin is used for signal grounding and power grounding; The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit via a series single bus. The serial signal input pins and serial signal output pins of n control chip are cascaded to form a serial data line network DIN(1)-DOUT(n). The two ends of the serial data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU transmits the mechanical switch control information to the MCU through the serial data line network DIN(1)-DOUT(n). A serial single-bus serial communication circuit is used to process information from a serial data line network. Mechanical switch control information is transmitted on the serial data line network DIN(1)-DOUT(n); The serial data line network uses a serial single-bus communication protocol to transmit mechanical switch control information. Example 9

[0054] Example 9 is identical to Example 1 except for the following content: A PCB that can directly mount mechanical axes has several slots on it. The PCB is fixed to the mechanical axes through the slots, and each mechanical axis is equipped with a corresponding full-color chip. like Figure 15The Yuquan color chip contains GRB LED beads and integrates a control signal interface circuit, a GRB color driving circuit, an address code memory, and a serial communication circuit with a single bus. It includes a control signal interface pin, a power supply pin, a ground pin, an address code input pin, and an address code output pin. The power supply pin is used to power the Yuquan color chip and transmit information, and the ground pin is used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit of the serial bus in series and parallel connection. The address code input pins and address code output pins of n Yuquan Carrier Color chips are cascaded to form a series data line network DIN(1)-DOUT(n). The two ends of the series data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU writes the sequence bit formed by the cascaded Yuquan Carrier Color chips into the address code memory through the series data line network DIN(1)-DOUT(n) and uses it as the communication address code. The power supply pins of the n Yuquan Carrier Color chips are connected in parallel to share the power supply network VCC, and the ground pins are connected in parallel to share the ground network GND. The data information is modulated on the power supply network VCC and transmitted to the MCU via power line carrier. The power supply network VCC is the parallel carrier data line network VCC(DIO). Serial-parallel single-bus serial communication circuits are used to process serial data line network information and parallel carrier data line network information. GRB holographic information and mechanical switch control information can be transmitted on the parallel carrier data line network VCC (DIO); GRB RGB information and mechanical switch control information can also be transmitted on the serial data line network DIN(1)-DOUT(n); Both the parallel carrier data line network and the serial data line network use the serial single-bus communication protocol to transmit GRB holographic information and mechanical switch control information, and are hot-standby for each other.

[0055] In Examples 1 to 9, it should be noted that in the same electrical system, all networks with the same name (such as VCC, GND, DIO, DIN, DOUT) are electrically connected. Furthermore, VCC and VCC(DIO) are essentially the same electrical network.

[0056] In Examples 1 to 9, in order to minimize power consumption, the control signal interface pin operates in a time-division multiplexing manner: when the button is being detected, it is an input port (INPUT); when the button is not being detected, the control signal interface pin is an output port (OUTPUT), which can output a low level, and the button is in a zero-power state.

[0057] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A PCB capable of directly mounting mechanical axes, characterized in that, The PCB has several slots, which are used to fix the PCB to the mechanical axis. Each mechanical axis is equipped with a full-color chip. The full-color chip contains GRB LEDs and integrates a control signal interface circuit, a GRB color driving circuit, an address code memory, and a serial communication circuit with a single bus in series and parallel connections; it includes control signal interface pins, power supply pins, ground pins, parallel data line pins, address code input pins, and address code output pins. The power pin is used to power the full-color chip, and the ground pin is used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit of the serial bus in series and parallel connection. The address code input pins and address code output pins of n full-color chips are cascaded to form a series data line network DIN(1)-DOUT(n). The two ends of the series data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU writes the sequence bit formed by the cascaded full-color chips into the address code memory through the series data line network DIN(1)-DOUT(n) and uses it as the communication address code. The power supply pins of n full-color chips are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the parallel data line pins are connected in parallel to form a parallel data line network DIO, which is then connected to the MCU. Serial-parallel single-bus serial communication circuits are used to process serial data line network information and parallel data line network information. GRB RGB information and mechanical switch control information can be transmitted on the parallel data line network DIO; GRB RGB information and mechanical switch control information can also be transmitted on the serial data line network DIN(1)-DOUT(n); Both the parallel data line network DIO and the serial data line network DIN(1)-DOUT(n) use the serial single-bus communication protocol to transmit GRB color information and mechanical switch control information, and are hot backups for each other.

2. A PCB capable of directly mounting mechanical axes, characterized in that, The PCB has several slots, and the PCB is fixed to the mechanical axis through the slots. Each mechanical axis is equipped with a corresponding Yuhuicai chip. The Yuhuicai chip contains GRB LED beads and integrates a control signal interface circuit, a GRB color driving circuit, a parallel single-bus serial communication circuit, and an address code memory. It includes control signal interface pins, power supply pins, ground pins, and parallel data line pins. The power supply pins are used to power the Yuhuicai chip, and the ground pins are used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the parallel single-bus serial communication circuit. The parallel data lines are connected together to form a parallel data line network (DIO), which is then connected to the MCU. The address code of the Yuhuicai chip is written into the address code memory through an external fixture and used as the communication address code. Parallel single-bus serial communication circuits are used to process information from parallel data line networks; GRB RGB information and mechanical switch control information are transmitted on the parallel data line network DIO; The parallel data line network uses a serial single-bus communication protocol to transmit GRB holographic information and mechanical switch control information.

3. A PCB capable of directly mounting mechanical axes, characterized in that, The PCB has several slots, and the PCB is fixed to the mechanical axis through the slots. Each mechanical axis is equipped with a corresponding color chip. The chip contains GRB LEDs and integrates a control signal interface circuit, a GRB color driving circuit, an address code memory, and a parallel single-bus serial communication circuit. It includes a control signal interface pin, a power supply pin, and a ground pin. The power supply pin is used to power the chip and transmit information, and the ground pin is used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the parallel single-bus serial communication circuit. Data information is modulated and transmitted to the MCU via power line carrier on the power network VCC, which is also the parallel carrier data line network VCC (DIO); the address code of the carrier chip is written into the address code memory through an external fixture and used as the communication address code; Parallel single-bus serial communication circuits are used to process information from parallel carrier data line networks; GRB holographic information and mechanical switch control information can be transmitted on the parallel carrier data line network VCC (DIO); The parallel carrier data line network uses a serial single-bus communication protocol to transmit GRB holographic information and mechanical switch control information.

4. A PCB capable of directly mounting mechanical axes, characterized in that, The PCB has several slots, and the PCB is fixed to the mechanical axis through the slots. Each mechanical axis is equipped with a corresponding iridescent chip. The Yuhuancai chip contains GRB LED beads and integrates a control signal interface circuit, a GRB RGB driver circuit, and a serial single-bus serial communication circuit, including a control signal interface pin, a power supply pin, a ground pin, a serial signal input pin, and a serial signal output pin; the power supply pin is used to power the Yuhuancai chip, and the ground pin is used for signal grounding and power grounding; The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit via a series single bus. The serial signal input pins and serial signal output pins of n GRB chips are cascaded to form a serial data line network DIN(1)-DOUT(n). The two ends of the serial data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU transmits GRB information and mechanical switch control information to the MCU through the serial data line network DIN(1)-DOUT(n). A serial single-bus serial communication circuit is used to process information from a serial data line network. Both GRB RGB information and mechanical switch control information are transmitted on the serial data line network DIN(1)-DOUT(n); The serial data line network uses a serial single-bus communication protocol to transmit GRB holographic information and mechanical switch control information.

5. A PCB capable of directly mounting mechanical axes, characterized in that, The PCB has several slots, and the PCB is fixed to the mechanical axis through the slots. Each mechanical axis is equipped with a Yuquan external color chip. The Yuquan external color chip is used to drive external LED beads and integrates a control signal interface circuit, a GRB color driving circuit, an address code memory, and a serial communication circuit with a single bus. It includes control signal interface pins, power supply pins, ground pins, parallel data line pins, address code input pins, address code output pins, G pins, R pins, and B pins. The power supply pin is used to power the Yuquan external color chip, and the ground pin is used for signal grounding and power grounding. The G pin, R pin, and B pin are respectively connected to the external green LED, red LED, and blue LED. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit of the serial bus in series and parallel connection. The address code input pins and address code output pins of n Yuquan external color chips are cascaded to form a series data line network DIN(1)-DOUT(n). The two ends of the series data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU writes the sequence bit formed by the cascaded Yuquan external color chips into the address code memory through the series data line network DIN(1)-DOUT(n) and uses it as the communication address code. The power supply pins of n Yuquan external color chips are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the parallel data line pins are connected in parallel to form a parallel data line network DIO, which is then connected to the MCU. Serial-parallel single-bus serial communication circuits are used to process serial data line network information and parallel data line network information. GRB RGB information and mechanical switch control information can be transmitted on the parallel data line network DIO; GRB RGB information and mechanical switch control information can also be transmitted on the serial data line network DIN(1)-DOUT(n); Both the parallel data line network DIO and the serial data line network DIN(1)-DOUT(n) use the serial single-bus communication protocol to transmit GRB color information and mechanical switch control information, and are hot backups for each other.

6. A PCB capable of directly mounting mechanical axes, characterized in that, The PCB has several slots, and the PCB is fixed to the mechanical axis through the slots. Each mechanical axis is equipped with a corresponding iridescent chip. The Yuhuan external color chip is used to drive external LED beads and integrates a control signal interface circuit, a GRB color driving circuit, and a serial single-bus serial communication circuit. It includes a control signal interface pin, a power supply pin, a ground pin, a serial signal input pin, a serial signal output pin, a G pin, an R pin, and a B pin. The power supply pin is used to supply power to the Yuhuan external color chip, and the ground pin is used for signal grounding and power grounding. The G pin, R pin, and B pin are respectively connected to the external green LED, red LED, and blue LED. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit via a series single bus. The serial signal input pins and serial signal output pins of n Yuhuan external color chips are cascaded to form a serial data line network DIN(1)-DOUT(n). The two ends of the serial data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU transmits the GRB color information and mechanical switch control information to the MCU through the serial data line network DIN(1)-DOUT(n). A serial single-bus serial communication circuit is used to process information from a serial data line network. Both GRB RGB information and mechanical switch control information are transmitted on the serial data line network DIN(1)-DOUT(n); The serial data line network DIN(1)-DOUT(n) uses a serial single-bus communication protocol to transmit GRB RGB information and mechanical switch control information.

7. A PCB capable of directly mounting mechanical axes, characterized in that, The PCB has several slots, and the PCB is fixed to the mechanical axis through the slots. Each mechanical axis is equipped with a corresponding controller chip. The controller chip integrates a control signal interface circuit, an address code memory, and a serial communication circuit with a single bus; it includes control signal interface pins, power supply pins, ground pins, parallel data line pins, address code input pins, and address code output pins. The power pin is used to supply power to the controller chip, and the ground pin is used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit of the serial bus in series and parallel connection. The address code input pins and address code output pins of n controller chips are cascaded to form a serial data line network DIN(1)-DOUT(n). The two ends of the serial data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU writes the sequence bit formed by the cascaded controller chips into the address code memory through the serial data line network DIN(1)-DOUT(n) and uses it as the communication address code. The power supply pins of the n controller chips are connected in parallel to share the power supply network VCC, the ground pins are connected in parallel to share the ground network GND, and the parallel data line pins are connected in parallel to form a parallel data line network DIO, which is then connected to the MCU. Serial-parallel single-bus serial communication circuits are used to process serial data line network information and parallel data line network information. Mechanical switch control information can be transmitted on the parallel data line network (DIO). Mechanical switch control information can also be transmitted on the serial data line network DIN(1)-DOUT(n); Both the parallel data line network DIO and the serial data line network DIN(1)-DOUT(n) use the serial single-bus communication protocol to transmit mechanical switch control information and serve as hot backups for each other.

8. A PCB capable of directly mounting mechanical axes, characterized in that, The PCB has several slots, and the PCB is fixed to the mechanical axis through the slots. Each mechanical axis is equipped with a corresponding device chip. The device chip integrates a control signal interface circuit and a serial single-bus serial communication circuit, including a control signal interface pin, a power supply pin, a ground pin, a serial signal input pin, and a serial signal output pin; the power supply pin is used to power the device chip, and the ground pin is used for signal grounding and power grounding; The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit via a series single bus. The serial signal input pins and serial signal output pins of n control chip are cascaded to form a serial data line network DIN(1)-DOUT(n). The two ends of the serial data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU transmits the mechanical switch control information to the MCU through the serial data line network DIN(1)-DOUT(n). A serial single-bus serial communication circuit is used to process information from a serial data line network. Mechanical switch control information is transmitted on the serial data line network DIN(1)-DOUT(n); The serial data line network uses a serial single-bus communication protocol to transmit mechanical switch control information.

9. A PCB capable of directly mounting mechanical axes, characterized in that, The PCB has several slots, and the PCB is fixed to the mechanical axis through the slots. Each mechanical axis is equipped with a corresponding full-color chip. The Yuquan color chip contains GRB LED beads and integrates a control signal interface circuit, a GRB color driving circuit, an address code memory, and a serial communication circuit with a single bus; it includes control signal interface pins, power supply pins, ground pins, address code input pins, and address code output pins. The power pin is used to supply power to the chip and transmit information, while the ground pin is used for signal grounding and power grounding. The control signal interface pins communicate with the external mechanical switch control signals. The control signal interface circuit is responsible for processing the mechanical switch control signals and connecting them to the serial communication circuit of the serial bus in series and parallel connection. The address code input pins and address code output pins of n Yuquan Carrier Color chips are cascaded to form a series data line network DIN(1)-DOUT(n). The two ends of the series data line network DIN(1) and DOUT(n) are connected to the MCU respectively. The MCU writes the sequence bit formed by the cascaded Yuquan Carrier Color chips into the address code memory through the series data line network DIN(1)-DOUT(n) and uses it as the communication address code. The power supply pins of the n Yuquan Carrier Color chips are connected in parallel to share the power supply network VCC, and the ground pins are connected in parallel to share the ground network GND. The data information is modulated on the power supply network VCC and transmitted to the MCU via power line carrier. The power supply network VCC is the parallel carrier data line network VCC(DIO). Serial-parallel single-bus serial communication circuits are used to process serial data line network information and parallel carrier data line network information. GRB holographic information and mechanical switch control information can be transmitted on the parallel carrier data line network VCC (DIO); GRB RGB information and mechanical switch control information can also be transmitted on the serial data line network DIN(1)-DOUT(n); Both the parallel carrier data line network and the serial data line network use the serial single-bus communication protocol to transmit GRB holographic information and mechanical switch control information, and are hot-standby for each other.

10. A mechanical shaft, characterized in that, The mechanical shaft is provided with a snap fastener, which is fixed to a slot on the PCB as described in any one of claims 1 to 8, and the mechanical shaft can be repeatedly inserted and removed from the PCB.

11. A keyboard, characterized in that, It includes the PCB as described in any one of claims 1 to 8, and a mechanical shaft corresponding to the PCB and capable of being repeatedly inserted and removed from the PCB.

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