Magnetic shaft multi-mode RGB keyboard circuit and magnetic shaft key device

Abstract

The application provides a magnetic shaft multi-mode RGB keyboard circuit, comprising a magnetic shaft key module, a Hall element, a signal processing circuit and a main control module. The magnetic shaft key module is internally provided with an axially movable permanent magnet; the Hall element is oppositely arranged, and outputs a voltage signal in inverse proportion to the displacement of the permanent magnet; the signal processing circuit performs voltage division, current limiting and amplification processing on the voltage signal to form a key signal; and the main control module compares the processed key signal with a preset voltage threshold value which can be defined by a user to determine the key triggering state. The scheme changes the determination of the triggering stroke from a hardware structure to a software parameter, and the user can flexibly set the triggering threshold value according to different use scenarios and personal habits, realizes the individual customization of the triggering stroke, and effectively solves the poor adaptability problem of the traditional magnetic shaft keyboard due to the fixed triggering stroke.

Description

Technical Field

[0001] This application relates to the field of keyboard circuits, and more particularly to a magnetic axis multimode RGB keyboard circuit and magnetic axis key device. Background Technology

[0002] In the field of keyboard input devices, magnetic key switches have gradually replaced traditional mechanical switches as the core component of mid-to-high-end keyboards due to their advantages such as no physical contact wear and fast trigger response.

[0003] In current mainstream magnetic axis keyboard circuit designs, the trigger travel control of the magnetic axis key module largely relies on a fixed hardware structure. The relative position and initial distance between the Hall element and the permanent magnet inside the magnetic axis are fixed by the axis mold. Different users have significantly different key pressure and operating habits. Some users are used to lightly pressing to trigger, while others prefer to press to a certain depth to trigger. The fixed trigger travel forces all users to passively adapt to a uniform standard, making it impossible to develop an input feel that matches their own operating habits. The Hall element can only output a trigger signal when the permanent magnet moves to a fixed distance, and then directly transmits it to the main control module to complete key recognition. Although this design can meet basic trigger requirements, it is limited by the non-adjustable hardware structure, and the trigger travel is strictly limited. It cannot be adjusted according to actual usage scenarios or user preferences, resulting in limited keyboard adaptability in different scenarios. For example, in gaming scenarios, users need a shorter travel for fast response, while in office scenarios, users need a longer travel to avoid accidental touches. Existing circuit designs cannot accommodate these differentiated needs.

[0004] Therefore, there is a need for a magnetic axis multi-mode RGB keyboard circuit and magnetic axis key device that can flexibly define the key response travel according to its own needs. Utility Model Content

[0005] In view of this, it is necessary to provide a magnetic axis multi-mode RGB keyboard circuit and magnetic axis key device that can flexibly define the key response travel according to its own needs, so as to solve the above problems.

[0006] Embodiments of this application provide a magnetic axis multi-mode RGB keyboard circuit for magnetic axis keys, the keyboard circuit comprising: A magnetic axis button module, wherein a permanent magnet is provided inside the magnetic axis button module that moves axially with the button travel; A Hall element is disposed opposite to the magnetic shaft button module, and the Hall element outputs a voltage signal that is inversely proportional to the displacement of the permanent magnet in the axial direction. A signal processing circuit, electrically connected to the Hall element, includes a voltage divider and current limiting unit and a signal amplification unit, used to process the voltage signal into a key signal; The main control module, which is electrically connected to the signal processing circuit, is used to compare the key signal with a preset voltage threshold to determine the key trigger state of the magnetic axis key module.

[0007] In at least one embodiment of this application, the voltage divider and current limiting unit includes: a voltage divider resistor and a current limiting resistor; One end of the voltage divider resistor is electrically connected to the signal output terminal of the Hall element, and the other end is electrically connected to one end of the current limiting resistor. The other end of the current limiting resistor is electrically connected to the input terminal of the signal amplification unit.

[0008] In at least one embodiment of this application, the signal amplification unit includes a transistor; The input terminal of the transistor is electrically connected to the output terminal of the voltage divider and current limiting unit, and the output terminal of the transistor is electrically connected to the signal interface of the main control module, which is used to amplify the voltage signal and transmit it to the main control module.

[0009] In at least one embodiment of this application, the keyboard circuit further includes: a key detection module; The signal input terminal of the key detection module is electrically connected to the signal output terminal of the signal processing circuit, and the signal output terminal of the key detection module is electrically connected to the main control module. It is used to sample the key signals output by the signal processing circuit, perform analog-to-digital conversion, and upload the corresponding digital detection data to the main control module.

[0010] In at least one embodiment of this application, the main control module has multiple PWM interfaces, each of which is electrically connected to the base of a corresponding transistor in a signal amplification unit to form a signal receiving channel.

[0011] In at least one embodiment of this application, the main control module further includes a programming interface, and the programming interface includes a C0 / ICEK pin and a C1 / ICED pin, which are respectively connected to the program writing control terminal and the data transmission terminal of the main control module, for writing the keyboard function control program into the main control module to determine the trigger logic of the magnetic axis key.

[0012] In at least one embodiment of this application, the keyboard circuit further includes a power supply module, which is electrically connected to the magnetic axis key module, the Hall element, the signal processing circuit and the main control module respectively, to provide operating voltage for each module.

[0013] In at least one embodiment of this application, the main control module is also electrically connected to an RGB driver module for controlling the multi-mode adjustment of the keyboard's RGB lighting.

[0014] In at least one embodiment of this application, the magnetic axis button module further includes: A bearing seat, wherein the Hall element is disposed directly opposite the bearing seat; A shaft cover is provided on the shaft seat; The shaft core is reciprocating along the pressing direction and is disposed on the shaft seat and the shaft cover, and the permanent magnet is disposed on the side of the shaft core away from the pressing end of the shaft core, and is spaced apart from the Hall element; A spring element is disposed between the shaft and the Hall element.

[0015] Embodiments of this application provide a magnetic axis key device, including any of the magnetic axis multimode RGB keyboard circuits described in any one of the claims.

[0016] The aforementioned magnetic axis multimode RGB keyboard circuit, by conditioning the analog voltage signal output by the Hall element, which corresponds to the continuous change in the displacement of the permanent magnet, through a signal processing circuit, sends it to the main control module and compares it with a user-defined preset voltage threshold to determine the trigger. This makes the key travel no longer fixed by the physical structure, but determined by software parameters, allowing users to flexibly set different trigger thresholds in the main control module according to different scenarios (such as gaming / office work) and their own habits, ultimately achieving personalized customization of the trigger travel and overcoming the problem of poor adaptability of the original design. Attached Figure Description

[0017] Figure 1 This is a system block diagram of the keyboard circuit in an embodiment of this application; Figure 2 This is the circuit diagram of the main control module in the keyboard circuit. Figure 3 An exploded view of a magnetic shaft keypad device; Figure 4 A schematic diagram of a practical structure for a magnetic shaft keypad device; Figure 5 This is a circuit diagram of the overall magnetic axis button module and the main control module; Figure 6 for Figure 5 Amplified circuit diagram of the middle magnetic shaft button module; Figure 7 This is a circuit diagram of a signal processing circuit. Figure 8 This is the circuit diagram of the overall RGB driver module; Figure 9 for Figure 8 Amplification circuit diagram of the middle RGB driver module; Explanation of main component symbols 100. A magnetic axis key device; 10. Magnetic axis key module; 11. Permanent magnet; 12. Axle seat; 13. Axle cover; 14. Axle core; 15. Spring component; 20. Hall element; 200. Keyboard circuit; 210. Signal processing circuit; 220. Key detection module; 230. Main control module; 240. RGB driver module. Detailed Implementation The embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0018] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or may also have an intervening component. When a component is considered to be "placed" on another component, it can be directly placed on the other component or may also have an intervening component. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "back," and similar expressions used in this article are for illustrative purposes only.

[0019] Embodiments of this application provide a magnetic axis multi-mode RGB keyboard circuit for magnetic axis keys, the keyboard circuit comprising: A magnetic axis button module, wherein a permanent magnet is provided inside the magnetic axis button module that moves axially with the button travel; A Hall element is disposed opposite to the magnetic shaft button module, and the Hall element outputs a voltage signal that is inversely proportional to the displacement of the permanent magnet in the axial direction. A signal processing circuit, electrically connected to the Hall element, includes a voltage divider and current limiting unit and a signal amplification unit, used to process the voltage signal into a key signal; The main control module, which is electrically connected to the signal processing circuit, is used to compare the key signal with a preset voltage threshold to determine the key trigger state of the magnetic axis key module.

[0020] The aforementioned magnetic axis multimode RGB keyboard circuit, by conditioning the analog voltage signal output by the Hall element, which corresponds to the continuous change in the displacement of the permanent magnet, through a signal processing circuit, sends it to the main control module and compares it with a user-defined preset voltage threshold to determine the trigger. This makes the key travel no longer fixed by the physical structure, but determined by software parameters, allowing users to flexibly set different trigger thresholds in the main control module according to different scenarios (such as gaming / office work) and their own habits, ultimately achieving personalized customization of the trigger travel and overcoming the problem of poor adaptability of the original design.

[0021] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] according to Figures 1-9 This application provides a magnetic axis multi-mode RGB keyboard circuit 200 for magnetic axis keys. The keyboard circuit 200 includes: a magnetic axis key module 10, a Hall element 20, a signal processing circuit 210, and a main control module 230.

[0023] The magnetic axis button module 10 is provided with a permanent magnet 11 that moves axially with the button travel.

[0024] The Hall element 20 is disposed opposite to the magnetic shaft button module 10, and the Hall element 20 outputs a voltage signal that is inversely proportional to the displacement of the permanent magnet 11 in the axial direction.

[0025] The signal processing circuit 210 is electrically connected to the Hall element 20. The signal processing circuit 210 includes a voltage divider and current limiting unit and a signal amplification unit, which are used to process the voltage signal into a key signal.

[0026] The main control module 230 is electrically connected to the signal processing circuit 210 and is used to compare the key signal with a preset voltage threshold to determine the key trigger state of the magnetic axis key module 10.

[0027] Specifically, the magnetic axis key module 10 uses a standard magnetic axis structure that supports axial travel adjustment. Its internal permanent magnet 11 is made of neodymium iron boron material, and the magnetic poles are distributed along the axial direction. When the user presses the core 14 of the magnetic axis key, the core 14 drives the permanent magnet 11 to move in a direction perpendicular to the keyboard panel.

[0028] Furthermore, in this embodiment, the VCC pin 1 of the Hall element 20 is connected to the 3.3V power supply terminal of the circuit, the GND pin 2 is grounded, and the OUT pin 3 serves as the signal output terminal. The Hall element 20 is fixed to the bottom of the shaft seat 12 of the magnetic shaft button module 10 via surface mount soldering, with a distance set between it and the permanent magnet 11 to ensure that the Hall element 20 can sense changes in the magnetic field when the permanent magnet 11 moves. When the permanent magnet 11 moves towards the Hall element 20, the displacement between the permanent magnet 11 and the Hall element 20 decreases, and the voltage signal output by the Hall element 20 decreases linearly; when the permanent magnet 11 moves away from the Hall element 20, the displacement between the permanent magnet 11 and the Hall element 20 increases, and the voltage signal output by the Hall element 20 increases linearly.

[0029] Furthermore, the main control module 230 identifies the trigger by judging the voltage signal value output by the Hall element 20. This allows users or developers to steplessly and precisely set the trigger travel of the button by simply modifying the preset voltage threshold stored in the main control module 230. For example, setting a higher voltage threshold means that the permanent magnet 11 only needs to move a short distance (light press) to trigger, which is suitable for speed-oriented gaming scenarios; setting a lower voltage threshold requires pressing the button more deeply to trigger, effectively preventing accidental touches when typing at an office.

[0030] In one specific embodiment, the voltage divider and current limiting unit includes a voltage divider resistor and a current limiting resistor.

[0031] One end of the voltage divider resistor is electrically connected to the signal output terminal of the Hall element 20, and the other end is electrically connected to one end of the current limiting resistor. The other end of the current limiting resistor is electrically connected to the input terminal of the signal amplification unit.

[0032] Specifically, the voltage divider resistors are selected from the RC series resistors marked in the circuit diagram, with each voltage divider resistor having a resistance value of 10KΩ, and the current limiting resistors are selected from the RA series resistors marked in the circuit diagram.

[0033] Furthermore, from the circuit connection perspective, one end of the voltage divider resistor is directly connected to the signal output pin of the Hall element 20, used to receive the voltage signal generated by the axial displacement of the permanent magnet 11 in the magnetic shaft button module 10. The other end of the voltage divider resistor is connected to one end of the current-limiting resistor in a corresponding manner. Through the voltage division effect of the RC series resistors, the original voltage signal output by the Hall element 20 is adjusted to the voltage value within the input range of the signal amplification unit. Through the current-limiting effect of the RD series resistors, the magnitude of the current flowing into the base of the transistor is limited, preventing excessive current from damaging the base junction of the transistor, while ensuring that the current flowing into the base can stably trigger the transistor to enter the amplification state.

[0034] Furthermore, the voltage divider resistor also serves as a pull-up resistor, with one end connected to the signal output terminal of the Hall element 20 and the other end connected to the pin of the main control module 230. When the magnetic shaft button is not triggered, the voltage output by the power supply module is used to stably pull the level of the corresponding pin of the main control module 230 to a high level, so as to avoid misjudgment due to signal fluctuation.

[0035] In one specific embodiment, the signal amplification unit includes a transistor.

[0036] The input terminal of the transistor is electrically connected to the output terminal of the voltage divider and current limiting unit, and the output terminal of the transistor is electrically connected to the signal interface of the main control module 230, which is used to amplify the voltage signal and transmit it to the main control module 230.

[0037] Specifically, in this embodiment, the transistor is an S8050 NPN transistor. Furthermore, the input terminal, i.e., the base, of the transistor is electrically connected one-to-one with one of the output terminals of the voltage divider and current limiting unit, receiving the voltage signal from the Hall element 20 after voltage division and current limiting preprocessing. The collector of the transistor serves as the output terminal, directly connected to the signal interface of the main control module 230. Specifically, the signal interface of the main control module 230 is the PWM interface marked in the circuit diagram, including PWM03-CH4, PWM04-CH7, PWM05-CH4, and PWM12-CH3. The emitter of the transistor is directly connected to the circuit ground, forming a complete amplifier circuit loop.

[0038] Furthermore, when the weak voltage signal (approximately 0.5V-2V) output by the voltage divider and current limiting unit is input to the base of the transistor, the current amplification effect of the transistor can boost the signal current output from the collector, converting the originally weak voltage signal into a strong signal that can be stably recognized by the main control module 230, thus preventing the main control module 230 from being unable to capture the button trigger signal due to the signal being too weak.

[0039] In one specific embodiment, the keyboard circuit 200 further includes a key detection module 220.

[0040] The signal input terminal of the key detection module 220 is electrically connected to the signal output terminal of the signal processing circuit 210, and the signal output terminal of the key detection module 220 is electrically connected to the main control module 230. It is used to sample the key signals output by the signal processing circuit 210, perform analog-to-digital conversion, and upload the corresponding digital detection data to the main control module 230.

[0041] Specifically, the button detection module 220 includes a signal filtering unit and an analog-to-digital converter (ADC) unit. The signal filtering unit consists of a capacitor and a resistor. One end of the filter capacitor is electrically connected to the output of the signal processing circuit 210, and the other end is grounded. The filter resistor is connected in series between the output of the signal processing circuit 210 and the sampling terminal of the button detection module 220. The ADC unit is integrated into the PAN1080LX5 Bluetooth chip in the main control module 230. This chip has a built-in 12-bit ADC (analog-to-digital converter) channel, and the signal output of the button detection module 220 is directly electrically connected to the ADC pin of the PAN1080LX5 chip.

[0042] Furthermore, the voltage signal output by the signal processing circuit 210 first enters the filtering unit of the key detection module 220, and after filtering, a smooth analog signal is obtained; then the analog signal is transmitted to the analog-to-digital conversion unit, where the PAN1080LX5 chip converts it into digital detection data; finally, the digital detection data is transmitted to the core computing unit of the main control module 230 through the chip's internal bus, providing a digital signal basis for key trigger state judgment.

[0043] In one specific embodiment, the main control module 230 has multiple PWM interfaces, each of which is electrically connected to the base of a corresponding transistor in a signal amplification unit to form a signal receiving channel.

[0044] Specifically, it should be noted that the core chip of the main control module 230 is the PAN1080LX5 Bluetooth communication chip marked in the circuit diagram, and the integrated multiple PWM interfaces include PWM03-CH4, PWM04-CH7, PWM05-CH4, PWM12-CH3, etc.

[0045] Looking at the circuit connection details, in the first group of signal receiving channels, the signal pin of the PWM03-CH4 interface is directly electrically connected to the base of the Q30 transistor; in the second group of channels, the PWM04-CH7 interface is electrically connected to the base of the Q36 transistor; in the third group of channels, the PWM05-CH4 interface is electrically connected to the base of the Q42 transistor... and so on, connecting the remaining PWM interfaces and transistors.

[0046] Furthermore, each signal receiving channel corresponds to only one magnetic axis key module 10 and one transistor. When a magnetic axis key is pressed, the voltage signal output by the Hall element 20 is divided, current limited, and amplified before being transmitted to the main control module 230 only through the corresponding PWM interface, without causing crosstalk with signals from other channels. For example, when the magnetic axis key corresponding to the Q30 transistor is pressed, the signal is transmitted only through the PWM03-CH4 interface, without affecting the signal reception of other interfaces such as PWM04-CH7 and PWM05-CH4. This effectively solves the signal confusion problem when multiple keys are triggered simultaneously, ensuring that the keyboard has stable multi-key rollover performance.

[0047] In one specific embodiment, the main control module 230 further includes a programming interface, which includes a C0 / ICEK pin and a C1 / ICED pin. These two pins are respectively connected to the program writing control terminal and the data transmission terminal of the main control module 230, and are used to write the keyboard function control program into the main control module 230 to trigger the magnetic axis key judgment logic.

[0048] Specifically, the C0 / ICEK pin of the programming interface is connected to the program writing control pin of the main control module 230, and the other end is the clock signal input terminal of the external programming device, used to receive the synchronous clock signal output by the programming device. One end of the C1 / ICED pin is connected to the data transmission pin of the main control module 230, and the other end is the data signal input terminal of the external programming device, used to transmit the keyboard function control program data to be written, such as magnetic axis key trigger threshold parameters, key debounce logic code, etc.

[0049] In one specific embodiment, the keyboard circuit 200 further includes a power supply module, which is electrically connected to the magnetic axis key module 10, the Hall element 20, the signal processing circuit 210, and the main control module 230 to provide operating voltage for each module. Specifically, the power supply module is an integrated power management unit responsible for providing a stable and reliable operating voltage for the entire magnetic axis keyboard circuit 200.

[0050] In one specific embodiment, the main control module 230 is also electrically connected to an RGB driver module 240, which is used to control the multi-mode adjustment of the keyboard's RGB lighting.

[0051] Specifically, the RGB driver module 240 is electrically connected to the PWM signal output terminal of the main control module 230. It is used to receive the PWM signal output by the main control module 230 and control the on / off state and brightness adjustment of the RGB LED beads by switching between the on and off states. The on or off state of each transistor is linked with the button trigger state of the magnetic axis button module 10. That is, when the main control module 230 determines that the magnetic axis button is triggered, it synchronously controls the corresponding transistor to output the corresponding PWM signal to achieve coordinated response between the button and the lighting effect.

[0052] In one specific embodiment, the magnetic shaft button module 10 further includes: a shaft seat 12, a shaft cover 13, a shaft core 14, and a spring member 15.

[0053] The Hall element 20 is positioned opposite the bearing seat 12. A bearing cap 13 is mounted on the bearing seat 12. A shaft core 14 is reciprocating along the pressing direction and is mounted on both the bearing seat 12 and the bearing cap 13. The permanent magnet 11 is located on the side of the shaft core 14 away from the pressing end of the shaft core 14 and is spaced apart from the Hall element 20. A spring element 15 is positioned between the shaft core 14 and the Hall element 20.

[0054] Specifically, the Hall element 20 is fixed to the PCB board directly below the mounting slot by surface mounting, and the sensing surface of the Hall element 20 is aligned with the vertical center line of the shaft seat 12, so that the Hall element 20 and the shaft seat 12 are directly opposite each other, ensuring that the Hall element 20 can continuously sense changes in the magnetic field when the permanent magnet 11 moves along the center line of the shaft seat 12. The shaft cover 13 is fastened to the top of the shaft seat 12, and together with the shaft seat 12, they form the motion guide channel of the shaft core 14. The top of the shaft core 14 is a pressing end for user pressing operation, and the bottom, i.e. the side away from the pressing end, is fixed with a cylindrical permanent magnet 11 by glue or other means. The axis of the permanent magnet 11 is completely coincident with the sensing center of the Hall element 20.

[0055] Furthermore, the spring element 15 is a compression spring, which is sleeved on the guide post between the bottom of the shaft core 14 and the Hall element 20. One end of the spring abuts against the bottom of the shaft core 14, and the other end abuts against the limiting platform at the bottom of the shaft seat 12. This ensures the user's pressing feel and can push the shaft core 14 to reset after pressing, so that the permanent magnet 11 returns to the initial interval position.

[0056] This application provides a magnetic axis keypad device 100, including the magnetic axis multi-mode RGB keyboard circuit 200 as described in any one of the claims. The magnetic axis keypad device has already been described in the above description of the magnetic axis multi-mode RGB keyboard circuit 200, and will not be repeated here.

[0057] Therefore, the aforementioned magnetic axis multimode RGB keyboard circuit 200, by conditioning the analog voltage signal output by the Hall element 20, which corresponds to the continuous change in displacement of the permanent magnet 11, through the signal processing circuit 210, and sending it to the main control module 230 for comparison with a user-defined preset voltage threshold, thereby determining the trigger. Thus, the key travel is no longer fixed by the physical structure, but determined by software parameters, allowing users to flexibly set different trigger thresholds in the main control module 230 according to different scenarios (such as gaming / office work) and their own habits, ultimately achieving personalized customization of the trigger travel and overcoming the problem of poor adaptability of the original design.

[0058] The above description is merely an embodiment of this application. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this application, but these improvements all fall within the protection scope of this application.

Claims

1. A magnetic axis multi-mode RGB keyboard circuit for magnetic axis keys, characterized in that, The keyboard circuit includes: A magnetic axis button module, wherein a permanent magnet is provided inside the magnetic axis button module that moves axially with the button travel; A Hall element is disposed opposite to the magnetic shaft button module, and the Hall element outputs a voltage signal that is inversely proportional to the displacement of the permanent magnet in the axial direction. A signal processing circuit, electrically connected to the Hall element, includes a voltage divider and current limiting unit and a signal amplification unit, used to process the voltage signal into a key signal; The main control module, which is electrically connected to the signal processing circuit, is used to compare the key signal with a preset voltage threshold to determine the key trigger state of the magnetic axis key module.

2. The magnetic axis multi-mode RGB keyboard circuit according to claim 1, characterized in that, The voltage divider and current limiting unit includes: a voltage divider resistor and a current limiting resistor; One end of the voltage divider resistor is electrically connected to the signal output terminal of the Hall element, and the other end is electrically connected to one end of the current limiting resistor. The other end of the current limiting resistor is electrically connected to the input terminal of the signal amplification unit.

3. The magnetic axis multimode RGB keyboard circuit according to claim 2, characterized in that, The signal amplification unit includes a transistor; The input terminal of the transistor is electrically connected to the output terminal of the voltage divider and current limiting unit, and the output terminal of the transistor is electrically connected to the signal interface of the main control module, which is used to amplify the voltage signal and transmit it to the main control module.

4. The magnetic axis multimode RGB keyboard circuit according to claim 1, characterized in that, The keyboard circuit also includes: a key detection module; The signal input terminal of the key detection module is electrically connected to the signal output terminal of the signal processing circuit, and the signal output terminal of the key detection module is electrically connected to the main control module. It is used to sample the key signals output by the signal processing circuit, perform analog-to-digital conversion, and upload the corresponding digital detection data to the main control module.

5. The magnetic axis multimode RGB keyboard circuit according to claim 1, characterized in that, The main control module has multiple PWM interfaces, and each PWM interface is electrically connected to the base of a corresponding transistor in a signal amplification unit to form a signal receiving channel.

6. A magnetic axis multimode RGB keyboard circuit according to claim 1, characterized in that, The main control module also includes a programming interface, which includes a C0 / ICEK pin and a C1 / ICED pin. These two pins are respectively connected to the program writing control terminal and the data transmission terminal of the main control module, and are used to write the keyboard function control program into the main control module to determine the trigger logic of the magnetic axis keys.

7. The magnetic axis multimode RGB keyboard circuit according to claim 1, characterized in that, The keyboard circuit also includes a power supply module, which is electrically connected to the magnetic axis key module, the Hall element, the signal processing circuit and the main control module to provide operating voltage for each module.

8. The magnetic axis multimode RGB keyboard circuit according to claim 1, characterized in that, The main control module is also electrically connected to an RGB driver module, which is used to control the multi-mode adjustment of the keyboard's RGB lighting.

9. A magnetic axis multimode RGB keyboard circuit according to claim 1, characterized in that, The magnetic axis button module also includes: A bearing seat, wherein the Hall element is disposed directly opposite the bearing seat; A shaft cover is provided on the shaft seat; The shaft core is reciprocating along the pressing direction and is disposed on the shaft seat and the shaft cover, and the permanent magnet is disposed on the side of the shaft core away from the pressing end of the shaft core, and is spaced apart from the Hall element; A spring element is disposed between the shaft and the Hall element.

10. A magnetic shaft keypad device, characterized in that, Includes the magnetic axis multimode RGB keyboard circuit as described in any one of claims 1-9.

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