STC15-based embedded teaching system
The STC15-based embedded teaching system solves the problem of the lack of practical components in traditional embedded teaching systems, enabling low-cost and high-efficiency embedded development skills training, suitable for beginners and factory training.
Patent Information
- Application Number
- CN202422653004.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Traditional embedded systems teaching systems lack practical components, making it difficult for students to effectively master embedded development skills, resulting in high teaching costs and low efficiency.
Design an embedded teaching system device based on STC15, using simple and clear circuit connections and labels, providing abundant practical opportunities, supporting multiple expansion modules, adopting direct USB download and compact design, suitable for beginners and factory training.
It improves students' learning efficiency in embedded development skills, reduces teaching costs, and enhances the richness and flexibility of practical teaching, making it suitable for learning anytime, anywhere and for graduation projects.
Smart Images
Figure CN223911350U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of electronic equipment teaching, is used for the practical teaching device of the beginner of embedded personnel and the training and examination device of factory promotion personnel, and is exactly the embedded teaching system device based on STC15. BACKGROUND
[0002] With the development of computer technology and integrated circuit technology, embedded systems are widely used in various fields, and play an increasingly important role in communication, network, industrial control, medical electronics and other fields. The demand for embedded technology talents is increasing, so an effective teaching system is needed to cultivate students' embedded development ability.
[0003] The embedded teaching system has the characteristics of high performance, easy development, low power consumption and low cost, meets the requirements of energy saving and environmental protection, is suitable for teaching, reduces the teaching cost. In the traditional teaching method, the theory knowledge is often imparted, so the practice link is lacked. The embedded teaching system based on STC15 can provide rich practice opportunities, so that students can master embedded development skills in practice. SUMMARY
[0004] The utility model aims at providing an embedded teaching system device based on STC15, helping the beginner of embedded learning to complete the basic experiment, providing a basic unit for student graduation design, and providing convenient conditions for embedded learning, application and development innovation. The device is beneficial to teachers to complete the teaching content with higher quality, provides rich practice opportunities, so that students can master embedded development skills in practice, and improves the learning efficiency.
[0005] The utility model discloses a realize above-mentioned purpose, the technical scheme used is as follows: a kind of embedded teaching system device based on STC15, including PCB, it is characterized by: the LCD liquid crystal display of PCB left upper side has: there is patch capacitor, LCD liquid crystal's pin and adjustable resistance to adjust the light of display screen dark;PCB upper side has the interface of red-green light subboard: 9 pin interface: VCC, GND, P10-P16 and mark corresponding interface identification;PCB right upper side has the P1 port of unit nixie tube display connection single-chip microcontroller.Two four nixie tubes, segment code connects P00-P07 bit code connects P20-P27.And mark the interface identification of the bit code and segment code of four nixie tubes;The interface of the rightmost side of PCB is set subboard: 34 pin interface: VCC, GND, P00-P07, P10-P17, P20-P27, P30-P37 and mark corresponding interface identification;The middle part of the front of PCB is provided with main control chip MCU, and the mainboard area of the left side of its chip has the port of various modules, and mark the name of the pin corresponding to this main control chip;There is USB340 download area in the middle left upper side of mainboard area, and is provided with corresponding resistance, capacitor, crystal oscillator, CH340 download chip, patch light emitting diode, and its advantage lies in directly USB data line direct download, the display of two independent patch light emitting diode download process, jumper cap can be downloaded with other download programming module;There is electrolytic capacitor, patch capacitor, patch resistor, patch light emitting diode, separate power supply port to realize separately providing power to board in the middle left lower side of mainboard area, and is provided with separate power indicator light;There are eight bit water flow lamp connected with P2 port in the right side of mainboard area and corresponding row resistance, P13, P14 port connects DS3231 clock chip and corresponding CR2032 button cell, P10-P17 port connects C1-C8, P00-P07 port connects R1-R8 8X8 dot matrix display, and mark corresponding interface identification;The lower side of PCB is provided with four bit inquiry formula keyboard of P32, P33, P34, P35 port;The lower left side of PCB is provided with voice module and corresponding speaker port of P16, P17 port;The left lowermost side of PCB is provided with steering wheel control of P42, P44, P45 port, and independent power supply steering wheel power port, up to three steering wheels can be taken;The lower right side of PCB is provided with active buzzer of P55 port, base bias resistor and PNP triode;The lowermost right side of PCB is provided with the module of unit relay control;The back of PCB is provided with the name of printing device, eight bit voltage dividing resistor of unit nixie tube.The utility model discloses a patent due to having adopted the above -mentioned technical scheme, and compared with prior art, the technical progress that has obtained is in at: (1) the utility model patent is suitable for embedded beginner's entry use, and the simple circuit connection is adopted in the aspect of principle diagram drawing, and the circuit on the circuit board is clear and bright, and the clear and convenient checking of marking is convenient, (2) the utility model patent in the project also adopts the corresponding target mode to the label, for example, the label on the output circuit of P1.1 mouth involves the label pull-up resistor "R11", pull-up light emitting diode "D11", corresponding expansion port "P11" and so on, and writing program only needs to see the circuit board, and does not need to search corresponding circuit diagram, improves the use of equipment, (3) the utility model patent sets up the aspect of downloading and adopts simple USB to USB and USB to TTL two download forms, and it is very convenient to download only needs a computer, and a data line can, and the power supply form is changed, directly uses computer 5V power supply, improves the electrical safety.
[0006] (4) the utility model patent adopts the design of small and exquisite in size, and the size of 20cm*10cm is very convenient to use, only occupies small space, can reach self -made, carries, and learns at any time and anywhere.
[0007] (5) the utility model patent enriches interface circuit, that is, can complete the learning of basic unit, and can also expand and add a series of expansion modules like temperature sensor, temperature and humidity sensor, time module, liquid crystal display board, WH-E19 embedded thermal printer, increases the teaching practicability, and the practical training equipment is not only used for learning, but also can be used as the basic unit of graduation design, and the production of graduation product can be completed as long as the corresponding module is added.
[0008] The utility model patent is suitable for the practical teaching device of beginner embedded personnel, and also suitable for the training and examination device of factory promotion personnel. ACCURACY OF DRAWINGS
[0009] Fig. 1 is the circuit principle diagram of the mainboard area of the utility model. Fig. 2 is the circuit principle diagram of the display area of the utility model. Fig. 3 is the circuit principle diagram of the download area of the utility model. Fig. 4 is the PCB diagram of the embodiment of the utility model. In the drawing: 1, PCB, 2, LCD display area, 3, red and green light subboard area, 4, eight-bit flowing water lamp area, 5, unit digital display and eight-digit display area, 6, round hole, 7, subboard interface area, 8, 8X8 dot matrix area, 9, active buzzer area, 10, single relay control area, 11, chip and each module port area, 12, USB340 download area, 13, mainboard power supply area, 14, voice module area, 15, steering wheel control area, 16, DS3231 clock area, 17, four-bit inquiry type keyboard area. DETAILED DESCRIPTION
[0010] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.
[0011] As shown in Fig. 4, the present embodiment comprises a PCB board 1 with a right-angled rectangular cross section, and a support column mounting hole 6 is arranged at each corner of the PCB board 1; the PCB board 1 is provided with a chip and a module port area 11 for placing the chip and providing interfaces and power supply for various modules.
[0012] The interface area 3 of the traffic light sub-board is arranged right above the PCB, and is used for connecting the used traffic light sub-board to realize simple experiment of the traffic light.
[0013] The LCD liquid crystal display area 2 is arranged at the upper left, and C7 (104 capacitor) and C8 (106 capacitor) are arranged at the GND and VCC power supply ports to filter, couple and store energy, thereby providing purer and more stable power supply for the display screen and setting adjustable resistance to adjust the brightness of the display screen.
[0014] The unit digital tube display and two four-digit digital tube displays 5 are arranged at the right upper side of the PCB, and the interface identification of the bit code and segment code of the four-digit digital tube is arranged, and the back of the unit digital tube is provided with eight 1K resistance dividing resistors.
[0015] The rightmost side of the PCB board 1 is provided with an interface area 7 of a sub-board, and a 34-pin interface: VCC, GND, P00-P07, P10-P17, P20-P27, P30-P37, and corresponding interface identifiers are marked; the middle of the front of the PCB board 1 is provided with a single-chip microcomputer 11 of a main control chip, and the names of the pins corresponding to the main control chip are also marked. The mainboard area on the left side of the chip has ports of various modules. The single-chip microcomputer pin is written with the corresponding pin identifier, so as to quickly and conveniently find the corresponding pin; there are three 3-pin ports (for DS18B20 modules); there are three 4-pin ports (AM2302 temperature and humidity modules); there is one 5-pin port (for XY joystick modules); there is one 6-pin port (for HC-05 Bluetooth modules); there is a USB340 download area 12 on the upper left side of the middle of the mainboard area of the PCB board 1, which is provided with corresponding resistors, capacitors, crystal oscillators, CH340 download chips, and surface-mounted light-emitting diodes, and has the advantages of direct USB data line direct download, two independent surface-mounted light-emitting diodes display during the download process, and a jumper cap that can be used for downloading and burning other download modules; there is a mainboard power supply area 13 on the lower left side of the middle of the mainboard area of the PCB board 1, which is provided with electrolytic capacitors, surface-mounted capacitors, surface-mounted resistors, surface-mounted light-emitting diodes, and a separate power supply port to realize separate power supply for the board, and is provided with a separate power indicator; there are eight-bit flowing water lamps connected with P2 ports and corresponding resistors 4, P13, and P14 ports on the right side of the mainboard area, and there are DS3231 clock chips connected with P10-P17 ports, C1-C8, P00-P07 ports connected with R1-R8, and 8X8 dot matrix displays, and corresponding interface identifiers are marked; the lower side of the PCB board is provided with a four-bit query type keyboard 17 of P32, P33, P34, and P35 ports.
[0016] The lower left side of the PCB board is provided with a voice module of P16 and P17 ports and a corresponding speaker port 14.
[0017] The leftmost lower side of the PCB board is provided with a steering engine control of P42, P44, and P45 ports, and a separate power supply port 15 of the steering engine, which can carry up to three steering engines; the lower right side of the PCB board is provided with an active buzzer of P55 port, a base bias resistor, and a PNP triode 9.
[0018] The rightmost lower side of the PCB board is provided with a relay control module 10.
[0019] The back of the PCB board is provided with printed device names and eight 102 surface-mounted resistors of four-digit nixie tubes.
[0020] The utility model discloses each module in addition to setting up fixed experiment content, still can carry out combination to different experiment module, forms new experiment project. For example, utilize rudder control area, weighing module, nixie tube display area, voice module and singlechip minimum system module, can complete the design of medicine sorting system, utilize temperature sensor module, LCD liquid crystal display module, voice module, refrigeration semiconductor, relay control module and singlechip minimum system module, can complete the experimental design of refrigerator system control. With these small projects with strong practical application background, ignite the learning enthusiasm of the student, fully mobilize the enthusiasm of self -learning. Starting from the practical point of view, all -round forging student's engineering development ability, carefully create the high -quality learning environment of encouraging independent thinking, free exploration and boldly innovating, reach the efficient conversion and seamless link from single singlechip knowledge to practical application.
Claims
1. An STC15-based embedded teaching system device, comprising a printed circuit board (PCB), characterized in that: The PCB front has various regions of the mainboard, including the mainboard region, eight water flow lights, DS3231 clock, 8X8 dot matrix, active buzzer, relay control, subboard interface, nixie tube display, four-bit inquiry keyboard, red and green light subboard, LCD liquid crystal display, USB340 download, mainboard power supply, steering wheel control, voice module; the upper part of each part is printed with the device name; the upper left of the PCB has LCD liquid crystal display: capacitor, LCD crystal needle and adjustable resistor to adjust the brightness of the display screen; the upper right of the PCB has the interface of the red and green light subboard; the upper right of the PCB has the unit nixie tube display and two four-bit nixie tube displays, and the interface identification of the bit code and segment code of the four-bit nixie tube is set; the rightmost side of the PCB is provided with the interface of the subboard and has the corresponding interface identification; the middle of the front of the PCB is provided with the single-chip microcomputer of the main control chip, and the name of the pin corresponding to the main control chip is also printed; the left side of the chip of the mainboard region has a plurality of module ports; the upper left of the middle of the mainboard region is provided with the USB340 download region, and is provided with the corresponding resistance, capacitance, crystal oscillator, CH340 download chip and surface mount light emitting diode; the lower left of the middle of the mainboard region is provided with the mainboard power supply area, power indicator light and separate power supply port; the right side of the mainboard region has eight water flow lights, DS3231 clock chip and corresponding battery, 8X8 dot matrix; the lower side of the PCB is provided with a four-bit inquiry keyboard; the lower left side of the PCB is provided with a voice module and a corresponding speaker port; the lowermost left side of the PCB is provided with a steering wheel control and a steering wheel power port; the lower right side of the PCB is provided with an active buzzer; the lowermost right side of the PCB is provided with a relay control module; the back of the PCB is provided with printed device names.