CN104424836A - Electronic technology experimental box for classroom teaching - Google Patents
Electronic technology experimental box for classroom teaching Download PDFInfo
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- CN104424836A CN104424836A CN201310406362.6A CN201310406362A CN104424836A CN 104424836 A CN104424836 A CN 104424836A CN 201310406362 A CN201310406362 A CN 201310406362A CN 104424836 A CN104424836 A CN 104424836A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
- G09B23/186—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits for digital electronics; for computers, e.g. microprocessors
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Abstract
The invention relates to the technical field of education and teaching, in particular to an electronic technology experimental box for classroom teaching. The electronic technology experimental box comprises a main board, two daughter boards, an experimental box body and a power supply module, wherein the main board comprises a nixie tube, a dial switch, an indicator light, a logic pen, a main switch, a direct voltage and a short circuit alarm, expansion wiring, an impulse signal source, a single impulse, a fixed resistor-capacitor, an alarm circuit, an A/D or D/A switch, a bread board and other modules. The two daughter boards are respectively a singlechip system board and a programmable system-on-chip board. The size of the singlechip system board is the same with the size of the bread board, thus the singlechip system board is convenient to dismantle and change. The introduction of the programmable system-on-chip board enables online programming to be realized, flexibility and convenience of the experimental box is strengthened, and the introduction of the two daughter boards enables the experimental box to upgrade to a high-performance singlechip system experimental box.
Description
Technical field
The present invention relates to education and instruction technical field, in particular for the Experiment of Electronic Technology case of classroom instruction.
Background technology
Along with the development of science and technology, the vital role of electronic technology in production and research activities more highlights.Experiment of Electronic Technology apparatus, i.e. Analog Electronics Technique, digital electronic technology experimental box, Shi Ge great colleges and universities implement the important experimental provision of Electronics Technology Practice Teaching and student's innovation.The widely used Experiment of Electronic Technology case of current Ge great institution of higher learning forms for the design of courses of Fundamentals of Electronic Technology course.Such experimental box has three remarkable defects: one is that the functions of the equipments of experimental box are single, expands, innovation performance is weak; Two is that the circuit board of different manufacturers experimental box can not be changed and be connected mutually, and size, interface, performance are difficult to compatibility; Three is that box volume is too large, both unsightly, is also not easy to mobile carrying.
Summary of the invention
The object of the invention is the Experiment of Electronic Technology case being provided for classroom instruction in order to overcome above-mentioned technical disadvantages.
The technical scheme that technical solution problem of the present invention adopts is: for the Experiment of Electronic Technology case of classroom instruction, comprise casing, mainboard, power module and two pieces of daughter boards.Described two pieces of daughter boards are respectively Single Chip Microcomputer (SCM) system plate and programmable system on chip plate.Described power module is fixed on the inside surface of bottom half, and its connection plug is drawn by the AC power interface on rear side of casing.Described mainboard is fixed on box house, and its surrounding is all affixed with the inside surface of casing.
Described mainboard comprises daughter board district, be positioned at viewing area above daughter board district, is positioned at the power supply area on the left of daughter board district, the expansion Wiring module being positioned at the functional module district below daughter board district and being positioned on the right side of daughter board district.Described daughter board district needs to select placed side wrapper sheet, Single Chip Microcomputer (SCM) system plate or programmable system on chip plate according to specific experiment.Charactron module, logic level indicating module, toggle switch and logic pen module is comprised in described viewing area.Comprise battery main switch and direct supply and short-circuit alarming module in described power supply area, wherein direct supply and short-circuit alarming module are connected with power module.Pulse signal source module, monopulse module, fixing capacitance-resistance module, warning circuit module and A/D and D/A modular converter is comprised in described functional module district.All modules on described mainboard all can work alone.
Described charactron module is in order to realize numeral method experiment.Described logic level indicating module adopts pilot lamp to represent the logic state of measured signal.Described logic pen module adopts the pilot lamp of different colours to carry out the height of representative digit level.External power source is converted to the direct supply meeting experimental box power requirement by described direct supply and short-circuit alarming module.And current-limiting protection circuit and short-circuit alarming circuit are provided.Described expansion Wiring module is for providing external expansion interface.Described pulse signal source module is for providing the square-wave signal source of frequency-adjustable.Described monopulse module provides single rising edge and negative edge.Described fixing capacitance-resistance module provides two or more to have the resistance of fixed resistance value and the electric capacity of constant capacitance.
Described Single Chip Microcomputer (SCM) system plate comprises supply module A, LCD MODULE, hummer module, jtag interface, RS232 interface A, singlechip chip, expansion I/O interface A, EEPROM module and Keysheet module.
Described programmable system on chip plate comprises chip, custom block and capacitance plate module on LCD interface, RS232 interface B, expansion I/O interface B, supply module B, download program module, programmable chip.Described custom block provides external interface.
Described casing is of a size of long 230mm, wide 230mm, high 100mm.Mainboard is of a size of long 230mm, wide 230mm.Daughter board district is of a size of: long 165mm, wide 108mm.Single Chip Microcomputer (SCM) system plate is of a size of long 165mm, wide 54mm.Programmable system on chip plate is of a size of long 165mm, wide 108mm.
The model of the singlechip chip in described Single Chip Microcomputer (SCM) system plate is MSP430F149 chip.
On programmable chip in described programmable system on chip plate, the model of chip is CY8C55 chip.
Described mainboard, Single Chip Microcomputer (SCM) system plate and programmable system on chip plate are all reserved with plug receptacle, chip can be realized on singlechip chip, programmable chip to the control of charactron module, alarm module, A/D and D/A modular converter on mainboard by flat cable.
On described Single Chip Microcomputer (SCM) system plate, be fixed with row's pin in the surrounding in fixing singlechip chip region, directly coordinate with row's pin by the row of its chip surrounding is female when singlechip chip is installed.
Described supply module A and mainboard are provided with USB interface, and described mainboard can be connected chip power supply on singlechip chip and programmable chip by USB.
The beneficial effect that the present invention has is: (1) this experimental box is multiple functional, extendability and compatible strong: have Single Chip Microcomputer (SCM) system plate and the large programming module of programmable system on chip plate two, simultaneously based on the detachable modularization idea replaced, user-defined test block is provided, realize freely changing of Single Chip Microcomputer (SCM) system plate, programmable system on chip plate and bread board module, both the needs of Fundamentals of Electronic Technology curriculum experiment had been met, again can as the platform of student resource practice of innovation.
(2) Portable experimental box compact of the present invention, be convenient to move and carry, both can meet electronics curriculum practice demand, user can be helped again to improve innovation ability, thus for user's preparing experiment bring convenience.
(3) outdoor application is being tested for convenience of this experimental box, the fixed resistance and fixed capacity that series of experiments is conventional is provided respectively by fixing capacitance-resistance module, person easy to use directly obtains conventional capacitance-resistance value from mainboard, eliminates the extra worry preparing resistance capacitance and carry out testing.
(4) for improving the reliability of this experimental box, the supply module of daughter board being designed with USB interface, can adopting and directly be connected with the USB interface of mainboard the power supply realized daughter board, prevent the voltage instability caused when adopting power lead to connect; When singlechip chip being installed on Single Chip Microcomputer (SCM) system plate simultaneously, directly coordinated with the row's pin on daughter board by the row mother of its chip surrounding, directly change singlechip chip when not affecting other modules normally work on plate, when preventing singlechip chip from burning out, whole system plate is impacted.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is the structural representation of mainboard of the present invention.
Accompanying drawing 3 is the structural representation of MSP430 daughter board of the present invention.
Accompanying drawing 4 is the structural representation of PSoC5 daughter board of the present invention.
Embodiment
Below in conjunction with accompanying drawing 1 ~ accompanying drawing, 4 couples of the present invention are described below.
As shown in figures 1-4, the present invention includes 1 casing, 2 mainboards, 3 AC power interface, 4 power modules, 5 charactron modules, 6 logic level indicating modules, 7 toggle switchs, 8 logic pen modules, 9 battery main switches, 10 direct supplys and short-circuit alarming module, 11 daughter board districts, 12 expansion Wiring modules, 14 pulse signal source modules, 15 monopulse modules, 16 fixing capacitance-resistance modules, 17 alarm modules, 18A/D and D/A modular converter, 19 supply module A, 20 LCD MODULE, 21 hummer modules, 22JTAG interface, 23RS232 interface A, 24MSP430F149 chip, 25 expansion I/O interface A, 26EEPROM module, 27 Keysheet modules, 28 LCD interface, 29RS232 interface B, 30 expansion I/O interface B, 31 supply module B, 32 download program modules, 33CY8C55 chip, 34 custom blocks, 35 capacitance plate modules.
Described experimental box comprises casing 1, power module 4, mainboard 2 and two pieces of daughter boards.Two pieces of daughter boards in the present embodiment are respectively MSP430 daughter board and PSoC5 daughter board.
As shown in Figure 1, it is of a size of long 230mm, wide 230mm, high 100mm.Mainboard 2 is fixed on that casing 1 is inner, and power module 4 is fixed on the inside surface bottom casing 1, power module 4 for civil power being converted to ± 5V, ± 12V DC voltage, for mainboard 2 and two daughter boards are powered.The connection plug of power module 4 is drawn by the AC power interface 3 on rear side of casing 1.
Mainboard 2 is of a size of long 230mm, wide 230mm, and mainboard 2 is fixed on the position on casing 1 intermediate, and its surrounding is all affixed with the inside surface of casing 1.Mainboard 2 comprises daughter board district, be positioned at viewing area above daughter board district, is positioned at the power supply area on the left of daughter board district, the expansion Wiring module 12 being positioned at the functional module district below daughter board district and being positioned on the right side of daughter board district.Daughter board district is of a size of long 165mm, wide 108mm.Daughter board district is according to needing to select placed side wrapper sheet, MSP430 daughter board or PSoC5 daughter board.Charactron module 5, logic level indicating module 6, toggle switch 7 and logic pen module 8 is comprised in viewing area.Comprise master switch 9 and direct supply and short-circuit alarming module 10 in power supply area, direct supply and short-circuit alarming module 10 are connected with the power module 4 in casing 1, for mainboard 2 is powered.Comprise pulse signal source module 14, monopulse module 15, fixing capacitance-resistance module 16, warning circuit module 17 and A/D modular converter 18 in functional module district, the modules on mainboard 2 is separate, can work alone.
Wherein charactron module 5 is in order to meet the needs of the numeral method experiments such as digital stopwatch circuit design.Logic level indicating module 6 adopts pilot lamp to represent the logic state of measured signal, high level pilot lamp is lit, low level pilot lamp extinguishes, and this module can be used in the basic experiment such as the function of gate circuit and characteristic test, combinational logic circuit, integrated trigger.Logic pen module 8 is the instruments adopting the pilot lamp of different colours to carry out representative digit level height, and it is instrument easier in digital circuit surveying instrument, uses logic pen can measure out of order chip in digital circuit by Quick Measuring.The chip that in the present embodiment, pulse signal source module 14 is selected is integrated NE555 timer.Integrated 555 timers are a kind of by analogy and digital circuit combination, multiduty monolithic integrated optical circuit, as mixed a little Resistor-Capacitor Unit in its outside, just can form the multiple application circuits such as vibration, shaping and timing.The present embodiment utilizes NE555 to form multivibrator, to provide the square wave of 1Hz, 1kHz, 10kHz fixed frequency, and adds 10k Ω slide rheostat, square wave frequency can be regulated near these three values, namely achieve the square-wave signal source of adjustable frequency.Monopulse module 15 provides single rising edge and negative edge.Fix capacitance-resistance module 16 in the present embodiment and the fixed resistance value of 1K, 4.7K, 10K, 47K and 100K and the constant capacitance of 0.01 μ F, 0.1 μ F, 1 μ F, 2.2 μ F and 10 μ F are provided respectively, person easy to use directly obtains conventional capacitance-resistance value from mainboard, eliminates the extra worry preparing resistance capacitance and carry out testing.Alarm module 17 provides buzzer warning and LED lamp alarm two kinds of modes, access high level can make the LED of buzzer call or some shiny red, play the effect of warning, access low level hummer stops piping or red LED lamp extinguishing, the circuit of display access normally works, and does not occur short circuit phenomenon; This module may be used for study and the application of alarm circuit.Direct supply and the available maximum direct current of short-circuit alarming module 10 are+5V-5A ,-5V-0.5A ,+12V-1A ,-12V-0.5A, meet the power requirement of this experimental box; in addition; current-limiting protection circuit and short-circuit alarming circuit is have also been devised in this module, safe and reliable, convenient and practical.
MSP430 daughter board is used for realizing single-chip microcomputer mini system development board, and user can programming Control corresponding module according to actual needs.It is of a size of long 165mm, wide 54mm.
As shown in Figure 3, its structure comprises supply module A19, LCD MODULE 20, hummer module 21, jtag interface 22, RS232 interface A23, MSP430F149 chip 24, expansion I/O interface A25, EEPROM module 26 and Keysheet module 27.For improving the reliability of MSP430 daughter board, whole MSP430 daughter board is caused to lose efficacy when preventing MSP430F149 chip 24 from damaging, MSP430 daughter board is fixed the region surrounding fixing row pin of MSP430F149 chip 24, when MSP430F149 chip 24 is installed, the round on its chip is coordinated with row's pin.When MSP430F149 chip 24 burns out, direct worse MSP430F149 chip 24.
PSoC5 daughter board is programmable system on chip plate, built-in programmable digital, the simulation systems such as timer, PWM, A/D, amplifier, wave filter in sheet, can various modules needed for flexible configuration user.It is of a size of long 165mm, wide 108mm.
As shown in Figure 4, its structure comprises LCD interface 28, RS232 interface B29, expansion I/O interface 30, supply module B31, download program module 32, CY8C55 chip 33, custom block 34 and capacitance plate module 35.Wherein custom block 34 provides external interface, to improve the extendability of this daughter board.
Described mainboard 2, MSP430 daughter board and PSoC5 daughter board all leave plug receptacle, the control of charactron 5 on MSP430F149 chip 24, CY8C55 chip 33 pairs of mainboards 2, warning circuit 17, A/D and D/A conversion 18 can be realized, flexibly and easily by the connection of flat cable.
This experimental box can carry out different experiments according to the difference of daughter board type in daughter board district 11 on mainboard 2.
When needing the infrastest carrying out electronic technology course range request, install the identical bread board of two block sizes in the daughter board district 11 of mainboard 2, now this experimental box just can complete digital circuit experiment and the large infrastest of analogous circuit experiment two.
Described digital circuit experiment comprises: the logic function of TTL integrated logic gate and parameter testing; The logic function of CMOS integrated logic gate and parameter testing; The connection of integrated logic circuit and driving; The design of combinational logic circuit and test; Code translator and application thereof; Data selector and application thereof; Trigger and application thereof; Counter and application thereof; Shift register and application thereof; Gate circuit is used to produce pulse signal---free-running multivibrator; Monostalbe trigger and Schmidt trigger---pulse delay and waveform shaping circuit; 555 time base circuits and application thereof; D/A, A/D converter; Digital stopwatch circuit design-comprehensive experiment and digital ansering grab design-comprehensive experiment.
Described analogous circuit experiment comprises: transistor common emitter single tube amplifier; Field effect transistor amplifier; Negative-feedback amplifier; Emitter follower; Differential amplifier; The basic application of integrated operational amplifier; Waveform generation and conversion; Rectification, filtering and stabilivolt mu balanced circuit; The application of integrated regulator; The application of integrated power amplifying circuit; The design of voltage-controlled function generator---comprehensive experiment.
When needs carry out high-performance experiment time, according to experiment need, the piece of bread plate in daughter board district 11 is replaced with MSP430 daughter board, or in daughter board district 11 install one piece of MSP430 daughter board.During installation MSP430 daughter board, MSP430 daughter board is connected with the screw on mainboard 2 by screw, thus is fixed on mainboard 2.Now just can carry out testing with the high-performance that MSP430F149 single-chip microcomputer is core.In that case, supply module A19 can adopt directly to be connected with mainboard wiring or USB and power to MSP430F149 chip 24, and jtag interface 22 is for download program, and expansion I/O interface A25 facilitates wiring.When using MSP430 daughter board, mcu programming can be used to control, and hummer module 21 pipes, EEPROM module 26 stores data, RS232 interface A23 tests 232 level, LCD MODULE 20 shows designated character, Keysheet module 27 carries out matrix form scanning.Be operated in the experimental box under this kind of mode, be mainly used in carrying out all kinds of single chip computer experiment: as man-machine interface experiment, the experiment of A/D and D/A transition experiment, memory read/write, 232 level detecting experiments.
When needs are tested by online programming, place PSoC5 daughter board in the daughter board district of mainboard 2.Described PSoC5 daughter board is directly placed on mainboard 2 by five rubber bases that its back side is fixing, and rubber base can make this daughter board steadily place by increasing friction force.The introducing of programmable system on chip PSoC5 daughter board can programme capacitance plate test experiments, LED lamplight according to intensity experiment, the experiment of low-power consumption mode calendar scheduling, and can by the custom block on plate and expansion I/O interface designed, designed control system, what contribute to improving student starts practice and the capability of independent innovation.
Claims (7)
1. for the Experiment of Electronic Technology case of classroom instruction, comprise: casing (1), mainboard, power module and two pieces of daughter boards, it is characterized in that: described two pieces of daughter boards are respectively Single Chip Microcomputer (SCM) system plate and programmable system on chip plate, described power module is fixed on the inside surface of bottom half, its connection plug is drawn by the AC power interface on rear side of casing, described mainboard is fixed on box house, and its surrounding is all affixed with the inside surface of casing;
Described mainboard comprises daughter board district, be positioned at the viewing area above daughter board district, be positioned at the power supply area on the left of daughter board district, the expansion Wiring module being positioned at the functional module district below daughter board district and being positioned on the right side of daughter board district, described daughter board district needs to select placed side wrapper sheet according to specific experiment, Single Chip Microcomputer (SCM) system plate or programmable system on chip plate, charactron module is comprised in described viewing area, logic level indicating module, toggle switch and logic pen module, battery main switch and direct supply and short-circuit alarming module is comprised in described power supply area, wherein direct supply and short-circuit alarming module are connected with power module, pulse signal source module is comprised in described functional module district, monopulse module, fixing capacitance-resistance module, warning circuit module and A/D and D/A modular converter, all modules on described mainboard all can work alone,
Described charactron module is in order to realize numeral method experiment, described logic level indicating module adopts pilot lamp to represent the logic state of measured signal, described logic pen module adopts the pilot lamp of different colours to carry out the height of representative digit level, external power source is converted to the direct supply meeting experimental box power requirement by described direct supply and short-circuit alarming module, and current-limiting protection circuit and short-circuit alarming circuit are provided, described expansion Wiring module is for providing external expansion interface, described pulse signal source module is for providing the square-wave signal source of frequency-adjustable, described monopulse module provides single rising edge and negative edge, described fixing capacitance-resistance module provides two or more to have the resistance of fixed resistance value and the electric capacity of constant capacitance,
Described Single Chip Microcomputer (SCM) system plate comprises supply module A, LCD MODULE, hummer module, jtag interface, RS232 interface A, singlechip chip, expansion I/O interface A, EEPROM module and Keysheet module;
Described programmable system on chip plate comprises chip, custom block and capacitance plate module on LCD interface, RS232 interface B, expansion I/O interface B, supply module B, download program module, programmable chip, and described custom block provides external interface.
2. the Experiment of Electronic Technology case for classroom instruction according to claim 1, it is characterized in that: described casing is of a size of long 230mm, wide 230mm, high 100mm, mainboard is of a size of long 230mm, wide 230mm, daughter board district is of a size of: long 165mm, wide 108mm, Single Chip Microcomputer (SCM) system plate is of a size of long 165mm, wide 54mm, and programmable system on chip plate is of a size of long 165mm, wide 108mm.
3. the Experiment of Electronic Technology case for classroom instruction according to claim 1, is characterized in that: the model of the singlechip chip in described Single Chip Microcomputer (SCM) system plate is MSP430F149 chip.
4. the Experiment of Electronic Technology case for classroom instruction according to claim 1, is characterized in that: on the programmable chip in described programmable system on chip plate, the model of chip is CY8C55 chip.
5. the Experiment of Electronic Technology case for classroom instruction according to claim 1, it is characterized in that: described mainboard, Single Chip Microcomputer (SCM) system plate and programmable system on chip plate are reserved with plug receptacle, chip can be realized on singlechip chip, programmable chip to the control of charactron module, alarm module, A/D and D/A modular converter on mainboard by flat cable.
6. the Experiment of Electronic Technology case for classroom instruction according to claim 1, it is characterized in that: on described Single Chip Microcomputer (SCM) system plate, be fixed with row's pin in the surrounding in fixing singlechip chip region, directly coordinate with row's pin by the row of its chip surrounding is female when singlechip chip is installed.
7. the Experiment of Electronic Technology case for classroom instruction according to claim 1, it is characterized in that: described supply module A, supply module B and mainboard are provided with USB interface, described mainboard can be connected chip power supply on singlechip chip and programmable chip by USB.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310406362.6A CN104424836A (en) | 2013-09-09 | 2013-09-09 | Electronic technology experimental box for classroom teaching |
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| CN201310406362.6A CN104424836A (en) | 2013-09-09 | 2013-09-09 | Electronic technology experimental box for classroom teaching |
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| CN201310406362.6A Pending CN104424836A (en) | 2013-09-09 | 2013-09-09 | Electronic technology experimental box for classroom teaching |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847022A (en) * | 2017-03-01 | 2017-06-13 | 东北大学秦皇岛分校 | A kind of gate circuit experimental provision |
| CN106847021A (en) * | 2017-03-01 | 2017-06-13 | 东北大学秦皇岛分校 | A kind of gate circuit chip treatment method suitable for gate circuit experiment |
| CN106898207A (en) * | 2015-12-17 | 2017-06-27 | 重庆尊来科技有限责任公司 | Autoexcitation formula lifts circuit heuristics |
| ES2622734A1 (en) * | 2016-10-08 | 2017-07-07 | Universidad De Málaga | Multi-functional educational electronic device for various branches of engineering (Machine-translation by Google Translate, not legally binding) |
| CN108109494A (en) * | 2018-02-07 | 2018-06-01 | 袁芳革 | Daughter board structure of experimental equipment |
| CN108320638A (en) * | 2018-02-07 | 2018-07-24 | 袁芳革 | Wisdom creates visitor and tests structure |
| CN109087565A (en) * | 2017-06-14 | 2018-12-25 | 乐山加兴科技有限公司 | The experimental box imparted knowledge to students for circuit design and mcu programming |
| CN110568798A (en) * | 2019-09-26 | 2019-12-13 | 北京琦思智慧科技发展有限公司 | a intelligent mainboard for programming education |
| US10528694B2 (en) | 2016-09-01 | 2020-01-07 | Joebotics Incorporated | Breadboard and electronics experimentation system |
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- 2013-09-09 CN CN201310406362.6A patent/CN104424836A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898207A (en) * | 2015-12-17 | 2017-06-27 | 重庆尊来科技有限责任公司 | Autoexcitation formula lifts circuit heuristics |
| US10528694B2 (en) | 2016-09-01 | 2020-01-07 | Joebotics Incorporated | Breadboard and electronics experimentation system |
| US10915687B2 (en) | 2016-09-01 | 2021-02-09 | Joebotics Incorporated | Breadboard and electronics experimentation system |
| ES2622734A1 (en) * | 2016-10-08 | 2017-07-07 | Universidad De Málaga | Multi-functional educational electronic device for various branches of engineering (Machine-translation by Google Translate, not legally binding) |
| CN106847022A (en) * | 2017-03-01 | 2017-06-13 | 东北大学秦皇岛分校 | A kind of gate circuit experimental provision |
| CN106847021A (en) * | 2017-03-01 | 2017-06-13 | 东北大学秦皇岛分校 | A kind of gate circuit chip treatment method suitable for gate circuit experiment |
| CN106847022B (en) * | 2017-03-01 | 2019-03-01 | 东北大学秦皇岛分校 | A kind of gate circuit experimental provision |
| CN106847021B (en) * | 2017-03-01 | 2019-04-02 | 东北大学秦皇岛分校 | A kind of gate circuit chip treatment method suitable for gate circuit experiment |
| CN109087565A (en) * | 2017-06-14 | 2018-12-25 | 乐山加兴科技有限公司 | The experimental box imparted knowledge to students for circuit design and mcu programming |
| CN108109494A (en) * | 2018-02-07 | 2018-06-01 | 袁芳革 | Daughter board structure of experimental equipment |
| CN108320638A (en) * | 2018-02-07 | 2018-07-24 | 袁芳革 | Wisdom creates visitor and tests structure |
| CN110568798A (en) * | 2019-09-26 | 2019-12-13 | 北京琦思智慧科技发展有限公司 | a intelligent mainboard for programming education |
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Application publication date: 20150318 |