Teaching expansion board

Abstract

The invention discloses a teaching expansion board, relates to the technical field of electronic information, and aims to solve the technical problems of low teaching scene switching efficiency, waste of hardware resources, difficulty in constructing a complete engineering cognitive system by students, and insufficient system-level design and innovation ability cultivation caused by physical solidification of functional modules and one-board-one-purpose of a traditional teaching expansion board. Comprising an expansion board body. The expansion board main body is connected with a main control chip integrated with a microprocessor, and the expansion board main body is also provided with an actuator module used for realizing common functions, a sensor module used for carrying out detection type teaching demonstration, an interaction module used for carrying out interaction operation and an expansion interface used for carrying out function expansion. According to the invention, through modular replaceable architecture design, rapid module replacement and experiment scene reconstruction are realized, the problem of low scene switching efficiency caused by a traditional'one-board-one-use 'mode is solved, and a single expansion board can cover multiple teaching scenes.

Description

Technical Field

[0001] The present invention relates to the field of electronic information technology, and more specifically, to a teaching expansion board. Background Art

[0002] In the field of electronic information practice teaching, the contradiction between the design concept of traditional teaching expansion boards and modern teaching needs has become increasingly prominent. Currently, most mainstream expansion boards adopt a design architecture with physically solidified functional modules. Their core functional units such as sensors and actuators are integrated with the main board in non-detachable ways such as welding and plugging, forming a closed system of "one board for one use".

[0003] Although this design has stability in a single experimental scenario, as the teaching content dynamically switches, its drawbacks gradually emerge:

[0004] When the teaching task changes from a temperature and humidity monitoring experiment to an angle perception experiment, teachers and students need to spend a lot of time to complete the overall replacement of the expansion board, which not only significantly prolongs the experimental preparation cycle, but also causes repeated purchase and idle waste of hardware resources.

[0005] From the perspective of system-level design teaching, the solidified architecture breaks the logical connection between different experimental scenarios. It is difficult for students to build a complete engineering cognitive system and cannot meet the training requirements for system-level design capabilities and innovative practice capabilities under the background of emerging engineering, becoming the key bottleneck restricting the improvement of practice teaching quality. In view of this, we propose a teaching expansion board. Summary of the Invention

[0006] The purpose of the present invention is to provide a teaching expansion board to solve the technical problems of physical solidification of functional modules and "one board for one use" in traditional teaching expansion boards, resulting in inefficient teaching scenario switching, waste of hardware resources, and difficulties for students to build a complete engineering cognitive system and insufficient cultivation of system-level design and innovation capabilities.

[0007] To solve the above technical problems, the present invention provides the following technical solution: A teaching expansion board, including an expansion board main body;

[0008] The expansion board main body is connected to a main control chip integrated with a microprocessor, and an actuator module for implementing common functions, a sensor module for detection teaching demonstrations, an interaction module for interactive operations, and an expansion interface for function expansion are further provided on the expansion board main body;

[0009] A Type-C power supply interface for power supply and a USB writing interface for code writing are further provided on the expansion board main body, and the actuator module, the sensor module, the interaction module, the expansion interface, the Type-C power supply interface, and the USB writing interface are all electrically connected to the main control chip.

[0010] Through the modular replaceable architecture design, the present invention connects functional units such as actuator modules and sensor modules to the main control chip, and cooperates with the expansion interface to quickly replace the modules and reconstruct the experimental scenario within 5 minutes, solving the problem of low efficiency in scenario switching caused by the traditional "one-board-one-use" mode, so that a single expansion board can cover multiple teaching scenarios such as temperature and humidity monitoring, mechatronics control, and human-computer interaction.

[0011] Preferably, the actuator module includes an RGB full-color lamp group for experimental display, an LED lamp for status indication, and a drive module for demonstrating the driving of external devices. The RGB full-color lamp group, the LED lamp, and the drive module are all arranged on the expansion board main body, and the RGB full-color lamp group, the LED lamp, and the drive module are all electrically connected to the main control chip.

[0012] Preferably, the drive module includes a drive control chip and a control port. The drive control chip and the control port are both arranged on the expansion board main body, and the drive control chip is electrically connected to the main control chip, and the control port is electrically connected to the drive control chip.

[0013] Preferably, the sensor module includes a temperature and humidity sensor for collecting environmental temperature and humidity data and an angle sensor for sensing angle changes. The temperature and humidity sensor and the angle sensor are both arranged on the expansion board main body, and the temperature and humidity sensor and the angle sensor are both electrically connected to the main control chip.

[0014] Preferably, the interaction module includes an operation button for triggering instructions and a plurality of touch buttons for providing diverse human-computer interaction methods. The operation button and the plurality of touch buttons are both arranged on the expansion board main body, and the operation button and the plurality of touch buttons are both electrically connected to the main control chip.

[0015] Preferably, the expansion interface includes an expansion slot for externally connecting a display module, a pin header interface for connecting external components, an IIC interface for implementing IIC communication, a UART interface for serial communication, and a function expansion interface for connecting the expansion board. The expansion slot, the pin header interface, the IIC interface, the UART interface, and the function expansion interface are all arranged on the expansion board main body, and the expansion slot, the pin header interface, the IIC interface, the UART interface, and the function expansion interface are all electrically connected to the main control chip.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Through the modular replaceable architecture design, the present invention connects functional units such as the actuator module and the sensor module to the main control chip, and cooperates with the expansion interface to quickly replace the module and reconstruct the experimental scenario within 5 minutes, solving the problem of low efficiency in scenario switching caused by the traditional "one-board-one-use" mode, and enabling a single expansion board to cover multiple teaching scenarios such as temperature and humidity monitoring, electromechanical control, and human-computer interaction.

[0018] 2. The present invention also supports the plug-and-play of third-party devices such as external cameras and soil moisture sensors through a standardized expansion interface system, improving the system expansion ability, further solving the problem of limited types of functional modules, and allowing students to build a cross-module collaborative system of "environmental monitoring - data processing - intelligent control" based on the same main board, deepening the understanding of complex electronic system architectures.

[0019] 3. The present invention also supports students to customize program logic through the USB write interface by integrating a programmable main control chip and a diversified interaction module, promoting the degree of freedom of experimental design from "module combination" to "function reconstruction" level, and further solving the problem of limitations in cultivating innovative thinking in traditional teaching. Students can write algorithms based on the data of temperature and humidity sensors, and adjust the color threshold of RGB lights through touch buttons to achieve a full-process innovative practice from data collection to intelligent control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a physical diagram of the present invention;

[0021] Figure 2 is a schematic circuit connection diagram of the present invention;

[0022] Figure 3 is an overall architecture diagram of the present invention.

[0023] Explanation of the reference numerals in the drawings:

[0024] 1. Main body of the expansion board; 2. Main control chip; 3. Actuator module; 301. RGB full-color lamp group; 302. LED lamp; 4. Sensor module; 401. Temperature and humidity sensor; 402. Angle sensor; 5. Interaction module; 501. Operation button; 502. Touch button; 6. Expansion interface; 601. Expansion slot; 602. Pin header interface; 603. IIC interface; 604. UART interface; 605. Function expansion interface; 7. Type-C power supply interface; 8. USB write interface; 9. Driver module; 901. Driver control chip; 902. Control port. DETAILED DESCRIPTION OF THE INVENTION

[0025] As Figures 1 to 3 shown, a teaching expansion board related to the present invention includes a main body 1 of the expansion board;

[0026] The extension board body 1 is connected to a main control chip 2 integrated with a microprocessor. On the extension board body 1, there are also provided an actuator module 3 for implementing common functions, a sensor module 4 for detection-based teaching demonstrations, an interaction module 5 for interactive operations, and an expansion interface 6 for function expansion. The main control chip 2 serves as the core controller of the system and is responsible for coordinating the operation of each functional module. The main control chip 2 has data acquisition, instruction processing, and communication interaction functions. It can receive the sensed data output by the sensor module 4 in real time, parse the control instructions input by the interaction module 5, drive the actuator module 3 to complete corresponding actions, and achieve data transmission and collaborative work with external devices through the expansion interface 6;

[0027] In an embodiment of the present invention, a Type-C power supply interface 7 for power supply and a USB writing interface 8 for code writing are also provided on the extension board body 1. The actuator module 3, the sensor module 4, the interaction module 5, the expansion interface 6, the Type-C power supply interface 7, and the USB writing interface 8 are all electrically connected to the main control chip 2. The Type-C interface 7 supports blind plugging in both directions and high-speed data transmission, and can provide stable power output to meet the power consumption requirements of multi-module collaborative work; the USB programming interface 8 supports burning the compiled program code into the main control chip 2 through a computer to achieve function customization and system upgrade.

[0028] In an embodiment of the present invention, the actuator module 3 includes an RGB full-color lamp group 301 for experimental display, an LED lamp 302 for status indication, and a drive module 9 for external device drive demonstration. The RGB full-color lamp group 301, the LED lamp 302, and the drive module 9 are all provided on the extension board body 1, and the RGB full-color lamp group 301, the LED lamp 302, and the drive module 9 are all electrically connected to the main control chip 2. The RGB full-color lamp group 301 is composed of an independently controllable LED light source array. Through pulse width modulation (PWM) technology, dynamic lighting effects such as running lights, breathing lights, and color gradients can be achieved, which are suitable for teaching scenarios such as color principles and PWM control algorithms; the LED lamp 302 is used to intuitively display the system operation status, including information such as power on / off, program execution, and fault alarm, to assist in experimental debugging and problem troubleshooting;

[0029] In an embodiment of the present invention, the driving module 9 includes a driving control chip 901 and a control port 902. The driving control chip 901 and the control port 902 are both disposed on the expansion board main body 1, and the driving control chip 901 is electrically connected to the main control chip 2. The control port 902 is electrically connected to the driving control chip 901, and the control port 902 is a USB port and can be connected to a motor or a servo through a data cable to achieve external device driving demonstration. The driving module 9 adopts the USB interface standard and integrates a dedicated driving control chip 901, supporting functions such as forward and reverse speed regulation of the motor and angle control of the servo, and can be used to carry out experimental projects such as robot motion control and manipulator operation to deepen students' understanding of the principle of mechatronic control.

[0030] In an embodiment of the present invention, the sensor module 4 includes a temperature and humidity sensor 401 for collecting ambient temperature and humidity data and an angle sensor 402 for sensing angle changes. The temperature and humidity sensor 401 and the angle sensor 402 are both disposed on the expansion board main body 1, and both the temperature and humidity sensor 401 and the angle sensor 402 are electrically connected to the main control chip 2. The sensor module 4 has the functions of ambient data collection and physical quantity sensing, providing basic data support for teaching experiments. The temperature and humidity sensor 401 adopts a high-precision sensing element, can collect ambient temperature and humidity parameters in real time, and transmits them to the main control chip 2 through an analog / digital signal conversion circuit; in teaching practice, students can write data collection programs and combine them with a display screen or indicator lights to achieve data visualization and carry out experiments such as sensor signal processing and data modeling. The angle sensor 402 is used to detect the attitude changes of the expansion board or external devices and plays a key role in experiments such as angle measurement and balance control, helping students master the principle of inertial measurement and attitude control technology.

[0031] In an embodiment of the present invention, the interaction module 5 includes an operation button 501 for triggering instructions and a plurality of touch buttons 502 for providing diverse human-computer interaction methods. The operation button 501 and the plurality of touch buttons 502 are both disposed on the expansion board main body 1, and both the operation button 501 and the plurality of touch buttons 502 are electrically connected to the main control chip 2. The interaction module 5 improves the operation convenience and interaction experience of teaching experiments through diversified human-computer interaction methods. The operation button group 501 supports basic control functions such as program start / stop and reset, and adopts a hardware interruption trigger mechanism to ensure the real-time response of instructions; the touch button array 502 supports function custom programming and can achieve advanced operations such as experimental mode switching and parameter adjustment to meet personalized teaching needs. The combination of the two interaction methods helps students master the collaborative working principle of hardware input control and software logic processing.

[0032] In an embodiment of the present invention, the expansion interface 6 includes an expansion slot 601 for externally connecting a display module, a pin header interface 602 for connecting external components, an IIC interface 603 for implementing IIC communication, a UART interface 604 for serial communication, and a function expansion interface 605 for expansion board connection. The expansion slot 601, the pin header interface 602, the IIC interface 603, the UART interface 604, and the function expansion interface 605 are all provided on the expansion board body 1, and the expansion slot 601, the pin header interface 602, the IIC interface 603, the UART interface 604, and the function expansion interface 605 are all electrically connected to the main control chip 2;

[0033] In an embodiment of the present invention, the expansion slot 601 can be connected to expansion modules such as an external camera and an OLED display screen. The pin header interface 602 is used to connect an external LED light. The function expansion interface 605 is used to connect external devices such as an ultrasonic sensor, a soil humidity sensor, a voice synthesis module, and a touch sensor to meet the functional expansion requirements of teaching demonstrations. The expansion interface system 6 adopts a standardized design and supports function expansion and peripheral access. The expansion slot 601 is compatible with devices such as an external camera and an OLED display screen, and can carry out experiments such as image acquisition and processing and data visualization; the pin header interface 602 supports the expansion of an external LED array and is used for complex circuit control and lighting effect programming; the IIC 603 and UART 604 interfaces support multi-device interconnection and can implement functions such as data interaction between expansion boards and Bluetooth wireless communication; the function expansion interface 605 supports the access of peripherals such as an ultrasonic sensor, a soil humidity sensor, and a voice module to meet the diverse teaching experiment requirements.

[0034] Working principle: This embodiment provides a teaching expansion board. When in use,

[0035] The embodiments disclosed in the present invention are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A teaching expansion board, characterized in that, It includes an expansion board main body (1); The expansion board main body (1) is connected to a main control chip (2) integrated with a microprocessor, and an actuator module (3) for implementing common functions, a sensor module (4) for detection teaching demonstrations, an interaction module (5) for interactive operations, and an expansion interface (6) for function expansion are also provided on the expansion board main body (1); A Type-C power supply interface (7) for power supply and a USB writing interface (8) for code writing are also provided on the expansion board main body (1), and the actuator module (3), the sensor module (4), the interaction module (5), the expansion interface (6), the Type-C power supply interface (7), and the USB writing interface (8) are all electrically connected to the main control chip (2).

2. The teaching expansion board according to claim 1, wherein The actuator module (3) includes an RGB full-color lamp group (301) for experimental display, an LED lamp (302) for status indication, and a drive module (9) for external device drive demonstrations. The RGB full-color lamp group (301), the LED lamp (302), and the drive module (9) are all arranged on the expansion board main body (1), and the RGB full-color lamp group (301), the LED lamp (302), and the drive module (9) are all electrically connected to the main control chip (2).

3. The teaching expansion board according to claim 2, wherein, The drive module (9) includes a drive control chip (901) and a control port (902). The drive control chip (901) and the control port (902) are both arranged on the expansion board main body (1), the drive control chip (901) is electrically connected to the main control chip (2), and the control port (902) is electrically connected to the drive control chip (901).

4. A teaching expansion board according to claim 1, characterized in that, The sensor module (4) includes a temperature and humidity sensor (401) for collecting ambient temperature and humidity data and an angle sensor (402) for sensing angle changes. The temperature and humidity sensor (401) and the angle sensor (402) are both arranged on the expansion board main body (1), and the temperature and humidity sensor (401) and the angle sensor (402) are both electrically connected to the main control chip (2).

5. A teaching expansion board according to claim 1, characterized in that, The interaction module (5) includes an operation button (501) for triggering instructions and a plurality of touch buttons (502) for providing diverse human-computer interaction methods. The operation button (501) and the plurality of touch buttons (502) are both arranged on the expansion board main body (1), and the operation button (501) and the plurality of touch buttons (502) are both electrically connected to the main control chip (2).

6. The teaching expansion board according to claim 1, characterized in that The expansion interface (6) includes an expansion slot (601) for externally connecting a display module, a pin header interface (602) for connecting external components, an IIC interface (603) for implementing IIC communication, a UART interface (604) for serial communication, and a function expansion interface (605) for connecting an expansion board. The expansion slot (601), the pin header interface (602), the IIC interface (603), the UART interface (604), and the function expansion interface (605) are all disposed on the expansion board main body (1), and the expansion slot (601), the pin header interface (602), the IIC interface (603), the UART interface (604), and the function expansion interface (605) are all electrically connected to the main control chip (2).

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