A microcomputer device for scientific and creative inventions by young people

Abstract

The present invention provides a microcomputer device for scientific and technological inventions by young people, and relates to the field of intelligent teaching equipment. The present invention integrates commonly used functional modules into one; young learners can directly use various functional hardware, which reduces the learning threshold and enables young learners to better adapt to the learning process. The double-sided PCB board can save hardware costs, increase hardware integration, reduce the occupied volume of the device, solve the problem of difficult carrying of complex hardware, and greatly reduce its hardware cost; the present invention integrates the DC-DC charging and discharging integrated module into the expansion module, so that the entire module can be used off-machine; the DC-DC charging and discharging integrated module can also provide a stable 5V DC power supply for the core terminal; by setting a rechargeable battery, the normal operation of the device can be guaranteed for a certain period of time without an external power supply; the adaptation of the expansion module to Lego blocks can greatly increase the practicality of the device; thereby stimulating the learning interest of young learners and making the learning process more joyful and interesting.

Description

Technical Field

[0001] The present invention relates to the field of intelligent teaching equipment, and in particular to a microcomputer device used for scientific and technological inventions by young people. Background Art

[0002] With the continuous development of Internet technology and the continuous prosperity of the Internet field, more and more people choose to learn computers, and their enthusiasm for learning is also rising. Microcomputers are integrated devices such as control and calculation. They can realize various inventions and creations of inventors through programming and external hardware, and their learners are also increasing.

[0003] However, beginners, especially young learners without any basic knowledge, often encounter some aspects of programming and manipulating hardware when learning microcomputers. Since beginners often do not understand hardware, if there is no learning hardware specifically for beginners, beginners are likely to be hindered by complex wiring, selection and installation of driver chips, construction of network protocols and other steps, thus affecting their learning progress and enthusiasm.

[0004] There are relatively few scientific and technological invention devices for teenagers in the existing technology. Teenagers often need to control the already driven hardware through computers to make inventions. However, maker boards such as Microbit and Raspberry Pi lack storage and display devices, which require external display devices to use. The defects of the whole set of processing terminals with input, output, programmability and sound integration are consistent.

[0005] At the same time, because they are used by teenagers, the price of small, highly integrated processing terminals is often relatively high, making it difficult to promote them on a large scale among teenagers. Similarly, these processing terminals are often equipped with screw holes and DuPont interfaces (pins), which makes the structural cost and circuit complexity of such terminals higher for teenagers.

[0006] Therefore, it is necessary to provide a new microcomputer device for young people's scientific and technological innovation to solve the above-mentioned technical problems. Summary of the invention

[0007] To solve one of the above-mentioned technical problems, the present invention provides a microcomputer device for scientific and technological inventions of young people, including a core terminal, which is arranged on a double-sided PCB board, and the double-sided PCB board includes a front panel and a rear panel.

[0008] Specifically, the core terminal includes an MCU processor and functional modules, and the functional modules include a buzzer module, a microphone module, a touch control module, a reset and button module, a cable connector A, an indicator light module, a posture sensor module, a temperature and humidity sensor module, a light sensor module, an external memory module, a display module, a power supply unit, a voltage stabilizing circuit, a USB communication module and a WIFI communication module; the MCU processor is provided with a number of I / O ports, and is electrically connected to each functional module respectively.

[0009] More specifically, the display module, microphone module, indicator light module and light sensor module are all arranged on the front panel; the buzzer module, reset and button module, cable connector A, posture sensor module, temperature and humidity sensor module, external memory module, power supply unit, voltage stabilizing circuit, USB communication module and WIFI communication module are all arranged on the rear panel; the touch control module includes touch points and touch chips electrically connected to each other; the touch points are arranged on the front panel, and the touch chip is arranged on the rear panel; the power supply unit is powered by an external DC power supply through the positive input terminal and the negative input terminal power supply port.

[0010] As a further solution, an expansion module is also included. The expansion module is arranged on an independent expansion PCB board, including a plurality of expansion interfaces and a cable connector B; the expansion interfaces are electrically connected to the cable connector B respectively; the cable connector B is electrically connected to the cable connector A through a cable harness.

[0011] As a further solution, the expansion interface is a Beginner expansion interface, which is provided with a snap slot for preventing reverse connection and is divided into a core terminal expansion interface and a WIFI communication expansion interface.

[0012] Specifically, the core terminal expansion interface includes three external power supply terminals, two external terminals electrically connected to the MCU processor I / O port and a ground terminal; wherein a filter capacitor is also bridged between the power supply terminal and the ground terminal.

[0013] More specifically, the WIFI communication expansion interface includes three external power supply terminals, an external terminal electrically connected to the MCU processor I / O port, a communication terminal electrically connected to the WIFI communication module, and a ground terminal; wherein a filter capacitor is also bridged between the power supply terminal and the ground terminal.

[0014] As a further solution, the extension module is also provided with a DC-DC charging and discharging integrated module; the DC-DC charging and discharging integrated module includes a charging and discharging management chip model IP5306, a rechargeable battery and a charging and discharging peripheral circuit; the charging and discharging management chip includes a VIN terminal, an LED1 terminal, an LED2 terminal, an LED3 terminal, a VOUT terminal, a SW terminal, a BAT terminal, a KEY terminal and an EP terminal.

[0015] Specifically, the charging and discharging peripheral circuit includes a plurality of light-emitting diodes, a plurality of resistors, a plurality of capacitors, a buffer circuit, a switching circuit, a charging circuit and a filtering circuit; two light-emitting diodes are connected in parallel between the LED1 terminal and the LED3 terminal, and are connected with opposite polarities; two light-emitting diodes are connected in parallel between the LED2 terminal and the LED3 terminal, and are connected with opposite polarities; the VIN terminal is externally connected to a 5V DC input power; a buffer circuit is also provided between the VIN terminal and the ground, and the buffer circuit includes a capacitor C29, a capacitor C30, a resistor R31, a resistor R6 and a 5VLED; the capacitor C29 is connected between the VIN terminal and the ground; the capacitor C30 and the resistor R31 are connected in series and then connected between the VIN terminal and the ground; the resistor R6 and the 5VLED are connected in series and then connected between the VIN terminal and the ground.

[0016] More specifically, the KEY is connected to a switch circuit; the switch circuit includes a resistor R30 and a push switch SW; the resistor R30 and the push switch SW are connected in series and then grounded.

[0017] The SW terminal and the BAT terminal are connected to a charging circuit; the charging circuit includes a resistor R35, a capacitor C28, a capacitor C27, a MOS tube Q6, an inductor L1, a positive charging terminal BAT+ and a negative charging terminal BAT-; the SW terminal is connected to one end of the inductor L1; the BAT terminal is connected to the capacitor C28 and then grounded; the other end of the inductor L1 is respectively connected to the resistor R35, the capacitor C27 and the positive charging terminal BAT+; the other end of the resistor R35 is connected to the BAT terminal; the other end of the capacitor C27 is grounded; the S pole of the MOS tube Q6 is grounded, the G pole is connected to the SW terminal, and the D pole is connected to the negative charging terminal BAT-.

[0018] The VOUT terminal is connected to a filter circuit, which includes capacitors C1, C2, C23, C24 and a diode D2. The capacitors C1, C2, C23 and C24 are connected in parallel between the VOUT terminal and the ground; the positive electrode of the diode D2 is connected to the VOUT terminal, and the negative electrode serves as the 5V DC output terminal of the DC-DC charging and discharging integrated module.

[0019] As a further solution, the double-sided PCB board and the extended PCB board adopt rectangular boards of the same size and are rounded at the four corners; the double-sided PCB board and the extended PCB board are respectively provided with connecting holes at the corresponding positions of the four corners; four connecting columns are arranged between the double-sided PCB board and the extended PCB, and threaded holes are respectively provided at both ends of the connecting columns, and the two ends of the connecting columns are fixed to the double-sided PCB board and the extended PCB board by screws engaging with the connecting holes.

[0020] As a further solution, the connecting column is a copper connecting column; an annular conductive contact is also provided at the contact portion between the connecting hole and the copper connecting column; the DC power supply external to the power supply unit is provided through the 5V DC output terminal of the DC-DC charging and discharging integrated module, and is electrically connected through the copper connecting column; the annular conductive contacts on the extended PCB board are respectively connected to the 5V DC output terminal or the ground; the annular conductive contacts on the double-sided PCB board are respectively electrically connected to the positive input terminal or the negative input terminal of the power supply unit.

[0021] As a further solution, the expansion PCB board is also provided with four Lego holes, and the expansion PCB board can be installed on Lego bricks through the Lego holes and Lego pins.

[0022] As a further solution, the voltage stabilizing circuit is a three-terminal voltage stabilizing circuit based on the AMS1117-3.3 voltage regulator; the USB communication module is a USB input port circuit based on the TYPEC-304-BCP16 module; the WIFI communication module is an ESP32 main control circuit based on the ESP32-S2-WROOM module; the display module is set by a 69IPS rounded LCD screen; the microphone module is set by an SMD polar capacitor microphone; the light sensor module is set by a photoresistor; the posture sensor module is set by a three-axis acceleration chip; the temperature and humidity sensor module is set by a SH The temperature and humidity sensor of T30-DIS-B is used for setting; the external memory module is set through the SD card reader socket of model XKTF-0803-0; the buzzer module is set through the SMD electromagnetic passive buzzer; the indicator light module is set through the full-color RGB lamp; the cable connector A and the cable connector B are set through the 20PinFPC cable connector; the reset and button module includes a reset button and a control button, and are respectively set through the TS-1010A-B touch switch; the touch control module includes a plurality of touch points and a touch chip of model BS818A-2; the touch points are arranged at the lower edge of the front panel.

[0023] As a further solution, the power supply unit is further provided with an external power supply port, and the external power supply port is provided via an M3 alligator clip power supply port.

[0024] As a further solution, the MCU processor is deployed using an Xtensa LX7 single-core 32-bit microprocessor and supports Scratch graphical programming, Python programming, Win / MAC operating system, USB burning and drag-and-drop code upload functions.

[0025] Compared with the related art, the microcomputer device for scientific and technological inventions provided by the present invention has the following advantages:

[0026] Beneficial effects:

[0027] 1. The present invention integrates commonly used functional modules into one; young learners can directly use various functional hardware, which reduces the learning threshold and enables young learners to better adapt to the learning process. In addition, since various functional modules are directly integrated, hardware damage caused by wiring errors, operating errors, etc. is avoided. The double-sided PCB board can save hardware costs, increase hardware integration, reduce the occupied volume of the device, and solve the problem of complex hardware being difficult to carry. Young learners do not need to connect wires to use it conveniently; its hardware cost is also greatly reduced, reducing the learning cost of young learners;

[0028] 2. The present invention solves the problem of difficulty in module wiring for beginners by adding an expansion module; the design of separate settings of the expansion module and the core terminal enables users to add and uninstall according to the situation; and the wiring between the expansion module and the core terminal is directly connected through the cable connector A and the cable connector B, avoiding complicated wiring procedures; each functional module only needs to adapt to the expansion interface to conveniently access the system, plug and play; the expandability and convenience of the device are greatly improved. In addition, the expansion interface can also ensure that the wiring has a certain strength, thereby ensuring that each expanded functional module can work stably;

[0029] 3. The present invention integrates the expansion module with the DC-DC charging and discharging integrated module, so that the entire module can be used off-line; in addition, the DC-DC charging and discharging integrated module can also provide a stable 5V DC power supply for the core terminal, solving the problem of power supply stability; by setting a rechargeable battery, the device can also be guaranteed to work normally for a certain period of time without an external power supply;

[0030] 4. The present invention can greatly increase the practicality of the device by adapting the expansion module to Lego bricks; young users can use their imagination on Lego bricks to create different objects and realize hardware control through microcomputer devices; it greatly increases the creativity, thereby stimulating the learning interest of young learners and making the learning process more joyful and interesting. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of a preferred system of a microcomputer device for scientific and creative inventions by young people provided by an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of preferred hardware of a microcomputer device for scientific and creative inventions by young people provided by an embodiment of the present invention;

[0033] Figure 3 A schematic diagram of a preferred rear end panel of a core terminal provided by an embodiment of the present invention;

[0034] Figure 4 A schematic diagram of a preferred front-end panel of a core terminal provided by an embodiment of the present invention;

[0035] Figure 5 A preferred schematic diagram of an expansion module provided by an embodiment of the present invention;

[0036] Figure 6 A schematic diagram of a preferred external module of the expansion module provided in an embodiment of the present invention;

[0037] Figure 7 A circuit structure diagram of a three-terminal voltage stabilizing circuit provided by an embodiment of the present invention;

[0038] Figure 8 A circuit structure diagram of a USB input port circuit provided by an embodiment of the present invention;

[0039] Fig. 9 A circuit structure diagram of the MCU control and WIFI communication module provided in an embodiment of the present invention;

[0040] Fig.10 A circuit structure diagram of a 69IPS rounded-corner LCD screen provided in an embodiment of the present invention;

[0041] Fig.11 A circuit structure diagram of an SMD polar body capacitor microphone provided by an embodiment of the present invention;

[0042] Fig.12 A circuit structure diagram of a photoresistor provided in an embodiment of the present invention;

[0043] Fig.13 A circuit structure diagram of a touch control module provided in an embodiment of the present invention;

[0044] Fig.14 A circuit structure diagram of a three-axis acceleration chip provided by an embodiment of the present invention;

[0045] Fig.15 A circuit diagram of a temperature and humidity sensor provided in an embodiment of the present invention;

[0046] Fig.16 A circuit diagram of an SD card reader provided by an embodiment of the present invention;

[0047] Fig.17 A circuit diagram of an SMD electromagnetic passive buzzer provided by an embodiment of the present invention;

[0048] Fig.18 A circuit diagram of a full-color RGB lamp provided by an embodiment of the present invention;

[0049] Fig.19 A circuit structure diagram of a cable connector A provided in an embodiment of the present invention;

[0050] Fig. 20 A circuit structure diagram of a ring-shaped conductive contact provided by an embodiment of the present invention;

[0051] Fig.21 A circuit diagram of a DC-DC charging and discharging integrated module provided in an embodiment of the present invention;

[0052] Fig. 22 A circuit structure diagram of a core terminal expansion interface provided by an embodiment of the present invention;

[0053] Fig.23 A circuit structure diagram of the Beginner expansion interface provided by an embodiment of the present invention;

[0054] Fig.24 A circuit diagram of a flat cable connector B and a flat cable connection provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0055] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0056] like Figures 1 to 24 As shown, this embodiment provides a microcomputer device for scientific and technological inventions of young people, including a core terminal, which is arranged on a double-sided PCB board, and the double-sided PCB board includes a front panel and a rear panel.

[0057] Specifically, the core terminal includes an MCU processor and functional modules, and the functional modules include a buzzer module, a microphone module, a touch control module, a reset and button module, a cable connector A, an indicator light module, a posture sensor module, a temperature and humidity sensor module, a light sensor module, an external memory module, a display module, a power supply unit, a voltage stabilizing circuit, a USB communication module and a WIFI communication module; the MCU processor is provided with a number of I / O ports, and is electrically connected to each functional module respectively.

[0058] More specifically, the display module, microphone module, indicator light module and light sensor module are all arranged on the front panel; the buzzer module, reset and button module, cable connector A, posture sensor module, temperature and humidity sensor module, external memory module, power supply unit, voltage stabilizing circuit, USB communication module and WIFI communication module are all arranged on the rear panel; the touch control module includes touch points and touch chips electrically connected to each other; the touch points are arranged on the front panel, and the touch chip is arranged on the rear panel; the power supply unit is powered by an external DC power supply through the positive input terminal and the negative input terminal power supply port.

[0059] It should be noted that traditional maker boards are often designed for users with a certain hardware foundation, and usually require users to connect display modules and other similar functional modules by themselves; the advantage of such a setting is that the hardware can be customized according to the actual usage; but external connection of such devices requires a thorough understanding of the pins of each module; and knowing its interaction rules, etc., and then realizing the desired scientific and technological inventions through programming. However, the wiring, interaction and use of each functional module with the MCU processor require a relatively strong knowledge base; this is extremely difficult for young users; therefore, when learning hardware control, young learners will experience a relatively painful initial learning period in the early stage; this undoubtedly increases the threshold for computer learning; this embodiment integrates commonly used functional modules in response to this situation; uses a screen, MCU, storage, and a series of input and output devices in a small-sized core terminal to design and manufacture youth scientific and technological inventions, and scientific exploration microcomputers. Young learners can directly use various functional hardware, which reduces the learning threshold and enables young learners to better adapt to the learning process. In addition, since various functional modules are directly integrated, hardware damage caused by wiring errors, operational errors, etc. is avoided. The double-sided PCB board can save hardware costs, increase hardware integration, reduce the device's footprint, and solve the problem of difficult carrying of complex hardware. Young learners do not need to connect wires to use it conveniently; its hardware cost is also greatly reduced, reducing the learning cost of young learners.

[0060] As a further solution, an expansion module is also included. The expansion module is arranged on an independent expansion PCB board, including a plurality of expansion interfaces and a cable connector B; the expansion interfaces are electrically connected to the cable connector B respectively; the cable connector B is electrically connected to the cable connector A through a cable harness.

[0061] It should be noted that: when implementing inventions, it is inevitable that the functional modules set by the core terminal cannot meet the actual needs; at this time, we need to add functional modules according to actual needs; but the traditional method of adding functional modules is to directly connect the functional modules to the I / O ports of the MCU processor; this greatly increases the difficulty for beginners; for this reason, the present embodiment solves the above problems by adding expansion modules; the design of separate settings of the expansion modules and the core terminal enables users to add and uninstall them according to the circumstances; and the wiring between the expansion module and the core terminal is directly connected through the cable connector A and the cable connector B, avoiding complicated wiring processes; each functional module only needs to adapt to the expansion interface to be able to easily access the system, plug and play; the scalability and convenience of the device are greatly improved. In addition, the expansion interface can also ensure that the wiring has a certain strength, thereby ensuring that each extended functional module can work stably.

[0062] As a further solution, the expansion interface is a Beginner expansion interface, which is provided with a snap slot for preventing reverse connection and is divided into a core terminal expansion interface and a WIFI communication expansion interface.

[0063] It should be noted that since beginners do not have enough knowledge about hardware devices, it is easy for them to damage the hardware devices due to reverse wiring, etc., thus causing unnecessary economic and time losses. The snap-on structure of the Beginner expansion interface can avoid reverse wiring, thereby enhancing the practicality of the device.

[0064] Specifically, the core terminal expansion interface includes three external power supply terminals, two external terminals electrically connected to the MCU processor I / O port and a ground terminal; wherein a filter capacitor is also bridged between the power supply terminal and the ground terminal.

[0065] More specifically, the WIFI communication expansion interface includes three external power supply terminals, an external terminal electrically connected to the MCU processor I / O port, a communication terminal electrically connected to the WIFI communication module, and a ground terminal; wherein a filter capacitor is also bridged between the power supply terminal and the ground terminal.

[0066] It should be noted that the core terminal extension interface and WIFI communication extension interface are set here mainly to facilitate different functional modules to adapt to different interfaces. Some functional modules not only communicate with the MCU processor, but also need to communicate with the outside, so they can use the WIFI communication extension interface; while some functional modules only need to communicate with the MCU processor, so the core terminal extension interface can be selected.

[0067] As a further solution, the extension module is also provided with a DC-DC charging and discharging integrated module; the DC-DC charging and discharging integrated module includes a charging and discharging management chip model IP5306, a rechargeable battery and a charging and discharging peripheral circuit; the charging and discharging management chip includes a VIN terminal, an LED1 terminal, an LED2 terminal, an LED3 terminal, a VOUT terminal, a SW terminal, a BAT terminal, a KEY terminal and an EP terminal.

[0068] Specifically, the charging and discharging peripheral circuit includes a plurality of light-emitting diodes, a plurality of resistors, a plurality of capacitors, a buffer circuit, a switching circuit, a charging circuit and a filtering circuit; two light-emitting diodes are connected in parallel between the LED1 terminal and the LED3 terminal, and are connected with opposite polarities; two light-emitting diodes are connected in parallel between the LED2 terminal and the LED3 terminal, and are connected with opposite polarities; the VIN terminal is externally connected to a 5V DC input power; a buffer circuit is also provided between the VIN terminal and the ground, and the buffer circuit includes a capacitor C29, a capacitor C30, a resistor R31, a resistor R6 and a 5VLED; the capacitor C29 is connected between the VIN terminal and the ground; the capacitor C30 and the resistor R31 are connected in series and then connected between the VIN terminal and the ground; the resistor R6 and the 5VLED are connected in series and then connected between the VIN terminal and the ground.

[0069] More specifically, the KEY is connected to a switch circuit; the switch circuit includes a resistor R30 and a push switch SW; the resistor R30 and the push switch SW are connected in series and then grounded.

[0070] The SW terminal and the BAT terminal are connected to a charging circuit; the charging circuit includes a resistor R35, a capacitor C28, a capacitor C27, a MOS tube Q6, an inductor L1, a positive charging terminal BAT+ and a negative charging terminal BAT-; the SW terminal is connected to one end of the inductor L1; the BAT terminal is connected to the capacitor C28 and then grounded; the other end of the inductor L1 is respectively connected to the resistor R35, the capacitor C27 and the positive charging terminal BAT+; the other end of the resistor R35 is connected to the BAT terminal; the other end of the capacitor C27 is grounded; the S pole of the MOS tube Q6 is grounded, the G pole is connected to the SW terminal, and the D pole is connected to the negative charging terminal BAT-.

[0071] The VOUT terminal is connected to a filter circuit, which includes capacitors C1, C2, C23, C24 and a diode D2. The capacitors C1, C2, C23 and C24 are connected in parallel between the VOUT terminal and the ground; the positive electrode of the diode D2 is connected to the VOUT terminal, and the negative electrode serves as the 5V DC output terminal of the DC-DC charging and discharging integrated module.

[0072] It should be noted that: this embodiment integrates the expansion module with a DC-DC charging and discharging integrated module, so that the entire module can be used off-line; in addition, the DC-DC charging and discharging integrated module can also provide a stable 5V DC power supply for the core terminal, solving the problem of power supply stability; by setting a rechargeable battery, the device can also ensure normal operation for a certain period of time without an external power supply.

[0073] As a further solution, the double-sided PCB board and the extended PCB board adopt rectangular boards of the same size and are rounded at the four corners; the double-sided PCB board and the extended PCB board are respectively provided with connecting holes at the corresponding positions of the four corners; four connecting columns are arranged between the double-sided PCB board and the extended PCB, and threaded holes are respectively provided at both ends of the connecting columns, and the two ends of the connecting columns are fixed to the double-sided PCB board and the extended PCB board by screws engaging with the connecting holes.

[0074] It should be noted that the rounded corners are mainly used to prevent sharp right angles from scratching the user. The double-sided PCB board and the extended PCB board use rectangular boards of the same size mainly so that the two can be stacked together through connecting columns; increase the integration of the device; and make it easier for users to mount the device on other items, solving the problem of easy loss due to scattered designs.

[0075] As a further solution, the connecting column is a copper connecting column; an annular conductive contact is also provided at the contact portion between the connecting hole and the copper connecting column; the DC power supply external to the power supply unit is provided through the 5V DC output terminal of the DC-DC charging and discharging integrated module, and is electrically connected through the copper connecting column; the annular conductive contacts on the extended PCB board are respectively connected to the 5V DC output terminal or the ground; the annular conductive contacts on the double-sided PCB board are respectively electrically connected to the positive input terminal or the negative input terminal of the power supply unit.

[0076] It should be noted that the copper connecting column can transmit electrical energy, enabling the DC-DC charging and discharging integrated module to provide stable 5V DC power to the core terminal. This design can reduce wiring and make the overall device simple and practical. When the core terminal and the expansion module are installed together, the power supply problem is solved together, reducing the operating steps of young users, thereby avoiding related problems caused by misoperation.

[0077] As a further solution, the expansion PCB board is also provided with four Lego holes, and the expansion PCB board can be installed on Lego bricks through the Lego holes and Lego pins.

[0078] It should be noted that: Lego bricks have a variety of combination variations and can achieve different external structures; adapting expansion modules to Lego bricks can greatly increase the practicality of the device; young users can use their imagination on Lego bricks; create and invent different objects, and realize hardware control through microcomputer devices; greatly increase creativity, thereby stimulating the learning interest of young learners and making the learning process more joyful and interesting.

[0079] As a further solution, Figures 7 to 24 As shown, the voltage stabilizing circuit is a three-terminal voltage stabilizing circuit based on the AMS1117-3.3 voltage regulator; the USB communication module is a USB input port circuit based on the TYPEC-304-BCP16 module; the WIFI communication module is an ESP32 main control circuit based on the ESP32-S2-WROOM module; the display module is set by a 69IPS rounded corner LCD screen; the microphone module is set by an SMD polar body capacitor microphone; the light sensor module is set by a photoresistor; the posture sensor module is set by a three-axis acceleration chip; the temperature and humidity sensor module is set by a SHT30-D IS-B's temperature and humidity sensor is used for setting; the external memory module is set through an SD card reader socket of model XKTF-0803-0; the buzzer module is set through an SMD electromagnetic passive buzzer; the indicator light module is set through a full-color RGB lamp; the cable connector A and the cable connector B are set through a 20PinFPC cable connector; the reset and key module includes a reset key and a control key, and are respectively set through a TS-1010A-B touch switch; the touch control module includes a plurality of touch points and a touch chip of model BS818A-2; the touch points are arranged at the lower edge of the front panel.

[0080] As a further solution, the power supply unit is further provided with an external power supply port, and the external power supply port is provided via an M3 alligator clip power supply port.

[0081] As a further solution, the MCU processor is deployed using an Xtensa LX7 single-core 32-bit microprocessor and supports Scratch graphical programming, Python programming, Win / MAC operating system, USB burning and drag-and-drop code upload functions.

[0082] It should be noted that: this embodiment has high hardware integration, low hardware cost, and strong scalability. It does not require young users to perform complicated wiring to realize creative inventions, thereby lowering the learning threshold. At the same time, adaptation with Lego bricks can increase the fun of learning and the diversity of creation. In addition, the MCU processor of this embodiment uses the Xtensa LX7 single-core 32-bit microprocessor, which can adapt to different programming languages ​​​​and different operating systems, and supports USB burning and drag-and-drop code upload functions, thereby further enhancing the scalability and applicability of the device, and can be used in various inventions and creations.

[0083] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A microcomputer device for scientific and technological inventions by young people, characterized in that: It includes a core terminal, which is arranged on a double-sided PCB board, and the double-sided PCB board includes a front panel and a rear panel; The core terminal includes an MCU processor and functional modules, wherein the functional modules include a buzzer module, a microphone module, a touch control module, a reset and key module, a cable connector A, an indicator light module, a posture sensor module, a temperature and humidity sensor module, a light sensor module, an external memory module, a display module, a power supply unit, a voltage stabilizing circuit, a USB communication module and a WIFI communication module; the MCU processor is provided with a plurality of I / O ports, which are electrically connected to each functional module respectively; The display module, microphone module, indicator light module and light sensor module are all arranged on the front panel; the buzzer module, reset and button module, cable connector A, posture sensor module, temperature and humidity sensor module, external memory module, power supply unit, voltage stabilizing circuit, USB communication module and WIFI communication module are all arranged on the rear panel; the touch control module includes touch points and touch chip electrically connected to each other; the touch points are arranged on the front panel, and the touch chip is arranged on the rear panel; the power supply unit is powered by an external DC power supply through the positive input terminal and the negative input terminal power supply port; It also includes an expansion module, which is arranged on an independent expansion PCB board and includes a plurality of expansion interfaces and a cable connector B; the expansion interfaces are electrically connected to the cable connector B respectively; the cable connector B is electrically connected to the cable connector A through a cable harness; The expansion interface is a Beginner expansion interface, which is provided with a snap slot for anti-reverse connection and is divided into a core terminal expansion interface and a WIFI communication expansion interface; The core terminal expansion interface includes three power supply terminals for external output, two external terminals electrically connected to the MCU processor I / O port, and a ground terminal; wherein a filter capacitor is also connected between the power supply terminal and the ground terminal; The WIFI communication expansion interface includes three power supply terminals for external output, an external terminal electrically connected to the MCU processor I / O port, a communication terminal electrically connected to the WIFI communication module, and a ground terminal; wherein a filter capacitor is also connected across the power supply terminal and the ground terminal; The expansion module is also provided with a DC-DC charging and discharging integrated module; the DC-DC charging and discharging integrated module includes a charging and discharging management chip of model IP5306, a rechargeable battery and a charging and discharging peripheral circuit; the charging and discharging management chip includes a VIN terminal, an LED1 terminal, an LED2 terminal, an LED3 terminal, a VOUT terminal, a SW terminal, a BAT terminal, a KEY terminal and an EP terminal; The charging and discharging peripheral circuit includes a plurality of light-emitting diodes, a plurality of resistors, a plurality of capacitors, a buffer circuit, a switch circuit, a charging circuit and a filter circuit; two light-emitting diodes are connected in parallel between the LED1 terminal and the LED3 terminal, and are connected in opposite polarities; two light-emitting diodes are connected in parallel between the LED2 terminal and the LED3 terminal, and are connected in opposite polarities; the VIN terminal is externally connected to a 5V DC input power; a buffer circuit is also provided between the VIN terminal and the ground, and the buffer circuit includes a capacitor C29, a capacitor C30, a resistor R31, a resistor R6 and a 5VLED; the capacitor C29 is connected between the VIN terminal and the ground; the capacitor C30 and the resistor R31 are connected in series and then connected between the VIN terminal and the ground; the resistor R6 and the 5VLED are connected in series and then connected between the VIN terminal and the ground; The KEY terminal is connected to a switch circuit; the switch circuit includes a resistor R30 and a push switch SW; the resistor R30 and the push switch SW are connected in series and then grounded; The SW terminal and the BAT terminal are connected to a charging circuit; the charging circuit includes a resistor R35, a capacitor C28, a capacitor C27, a MOS tube Q6, an inductor L1, a positive charging terminal BAT+ and a negative charging terminal BAT-; the SW terminal is connected to one end of the inductor L1; the BAT terminal is connected to the capacitor C28 and then grounded; the other end of the inductor L1 is respectively connected to the resistor R35, the capacitor C27 and the positive charging terminal BAT+; the other end of the resistor R35 is connected to the BAT terminal; the other end of the capacitor C27 is grounded; the S pole of the MOS tube Q6 is grounded, the G pole is connected to the SW terminal, and the D pole is connected to the negative charging terminal BAT-; The VOUT terminal is connected to a filter circuit, which includes a capacitor C1, a capacitor C2, a capacitor C23, a capacitor C24 and a diode D2. The capacitors C1, C2, C23 and C24 are connected in parallel between the VOUT terminal and the ground; the positive electrode of the diode D2 is connected to the VOUT terminal, and the negative electrode serves as a 5V DC output terminal of the DC-DC charging and discharging integrated module; The positive and negative electrodes of the rechargeable battery are electrically connected to the positive charging terminal BAT+ and the negative charging terminal BAT- respectively.

2. A microcomputer device for scientific and creative inventions by young people according to claim 1, characterized in that: The double-sided PCB board and the extended PCB board are rectangular boards of the same size, and the four corners are rounded; the double-sided PCB board and the extended PCB board are respectively provided with connection holes at corresponding positions at the four corners; four connection columns are arranged between the double-sided PCB board and the extended PCB, and threaded holes are respectively provided at both ends of the connection columns, and the two ends of the connection columns are fixed to the double-sided PCB board and the extended PCB board by screws that cooperate with the connection holes.

3. A microcomputer device for scientific and creative inventions by young people according to claim 2, characterized in that: The connecting column is a copper connecting column; an annular conductive contact is also provided at the contact portion between the connecting hole and the copper connecting column; the DC power supply external to the power supply unit is provided through the 5V DC output terminal of the DC-DC charging and discharging integrated module, and is electrically connected through the copper connecting column; the annular conductive contacts on the extended PCB board are respectively connected to the 5V DC output terminal or the ground; the annular conductive contacts on the double-sided PCB board are respectively electrically connected to the positive input terminal or the negative input terminal of the power supply unit.

4. A microcomputer device for scientific and creative inventions by young people according to claim 3, characterized in that: The extended PCB board is also provided with four Lego holes, and the extended PCB board can be installed on the Lego building blocks through the cooperation of the Lego holes and the Lego pins.

5. A microcomputer device for scientific and creative inventions by young people according to claim 1, characterized in that: The voltage stabilization circuit is a three-terminal voltage stabilization circuit based on the AMS1117-3.3 voltage regulator; the USB communication module is a USB input port circuit based on the TYPEC-304-BCP16 module; the WIFI communication module is an ESP32 main control circuit based on the ESP32-S2-WROOM module; the display module is set up by a 69IPS rounded corner LCD screen; the microphone module is set up by an SMD polar body capacitor microphone; the light sensor module is set up by a photoresistor; the posture sensor module is set up by a three-axis acceleration chip; the temperature and humidity sensor module is set up by a SHT30-DI The temperature and humidity sensor of S-B is set; the external memory module is set through the SD card reading socket of model XKTF-0803-0; the buzzer module is set through the SMD electromagnetic passive buzzer; the indicator light module is set through the full-color RGB lamp; the cable connector A and the cable connector B are set through the 20PinFPC cable connector; the reset and button module includes a reset button and a control button, and are set through the TS-1010A-B touch switch respectively; the touch control module includes a plurality of touch points and a touch chip of model BS818A-2; the touch points are arranged at the lower edge of the front panel.

6. A microcomputer device for scientific inventions by young people according to claim 1, characterized in that: The power supply unit is also provided with an external power supply port, and the external power supply port is provided through an M3 alligator clip power supply port.

7. A microcomputer device for scientific and creative inventions by young people according to claim 1, characterized in that: The MCU processor is deployed using an Xtensa LX7 single-core 32-bit microprocessor and supports Scratch graphical programming, Python programming, Win / MAC operating system, USB burning, and drag-and-drop code upload functions.

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