CN205827750U - A kind of teaching single chip comprehensive experiment box - Google Patents
A kind of teaching single chip comprehensive experiment box Download PDFInfo
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- CN205827750U CN205827750U CN201620301347.4U CN201620301347U CN205827750U CN 205827750 U CN205827750 U CN 205827750U CN 201620301347 U CN201620301347 U CN 201620301347U CN 205827750 U CN205827750 U CN 205827750U
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Abstract
This utility model provides a kind of teaching single chip comprehensive experiment box, relate to practical teaching Instrument technology field, employed technical scheme comprise that, structure includes casing and the circuit board being arranged in casing, it is crucial that: the structure of described circuit board includes: single-chip minimum system module, power module, and the LED module being connected with single-chip microcomputer parallel port respectively, charactron module, Independent keys module, matrix keyboard module, buzzer module, Liquid Crystal Module, real-time clock module, digital temperature sensor module, serial communication modular, relay module, analog-to-digital conversion module, D/A converter module and supporting I2C bus module.Single chip comprehensive experiment box compact conformation in this utility model, volume are little, low cost, control are simple, without wiring, be especially suitable for single-chip microcomputer abecedarian and learn single-chip microcomputer knowledge.
Description
Technical field
This utility model relates to a kind of teaching single chip comprehensive experiment box, belongs to practical teaching Instrument technology field.
Background technology
Practical teaching ratio in higher vocational education teaching progressively increases, and practical teaching is focused on training student and substantially grasped
Make technical ability, practical studies technical ability and preliminary innovation ability, in conjunction with teaching combining theory with practice now, theoretical knowledge is dissolved into reality
Trampling in the middle of teaching, therefore content of practice includes checking type, skill learning type, comprehensive practical traning type and innovative real training item
Mesh.The practical teaching present situation of China student is that verification experiment is many at present, training technical ability and the practice of cultivation comprehensive design abilities
Teaching is generally short of, and this has the biggest relation with practical teaching theory and the experimental teaching equipment of China's present stage, can pass through
Change teaching idea and improvement experimental real-training equipment reaches to improve Students ' Comprehensive designed capacity and the purpose of practice tactics.
Present stage, the singlechip experimental box volume that major part manufacturer produces is big, cost is high, control is complicated, wiring is numb
Tired, be not suitable for the single chip madine teaching of general school.Additionally, during the study of students initial stage, main is that single-chip microcomputer is basic
I/O mouth directly controls, and major part singlechip experimental box is all to be controlled by external interface chip on the market, and students is tested
Before to be familiar with the basic control method of various equipment and just can be programmed experiment, increase experiment difficulty, be also unfavorable for that teaching is opened
Exhibition.
Summary of the invention
This utility model can not preferably solve student for the existing singlechip experimental box of solution and carry out single-chip microcomputer basic structure
The technical problem of study, devises a kind of teaching single chip comprehensive experiment box.
This utility model employed technical scheme comprise that for realizing goal of the invention, a kind of teaching single chip comprehensive experiment box,
Structure includes casing and the circuit board being arranged in casing, it is important to: the structure of described circuit board includes: single-chip microcomputer is minimum
System module, power module and the LED module being connected with single-chip microcomputer parallel port respectively, charactron module, Independent keys module,
Matrix keyboard module, buzzer module, Liquid Crystal Module, real-time clock module, digital temperature sensor module, serial communication mould
Block, relay module, analog-to-digital conversion module, D/A converter module and supporting I2C bus module.
As preferably, described Liquid Crystal Module includes: 1602 Liquid Crystal Modules (8) and 12864 Liquid Crystal Modules (9).
As preferably, the real-time timepiece chip model in described real-time clock module (10) is DS1302.
As preferably, the temperature acquisition chip model in described digital temperature sensor module (11) is DS18B20.
As preferably, in described analog-to-digital conversion module (14), the model of analog-digital converter is ADC0804.
As preferably, in described D/A converter module (15), the model of digital to analog converter is DAC0832.
As preferably, also including jump cap in the structure of described circuit board, above modules is arranged by jump cap and power supply
The break-make of module (2).
As preferably, described power module (2) uses dual power supply.
As preferably, the single-chip microcomputer in described single-chip minimum system module (1) is AT89S series monolithic or STC89
Series monolithic.
The beneficial effects of the utility model, this experimental box is possible not only to carry out single-chip microcomputer basic content practical teaching, also has
The standby function that several module matched combined carry out single-chip microcomputer integrated practice teaching, by using each modular circuit relatively independent
Mentality of designing, the combination of various practicing teaching systems and collocation need student's group of doing it yourself to be incorporated in programming and set
Put, add chance and content that student starts, cultivated their basic operating technical ability, practical studies technical ability and tentatively innovated energy
Power.
Single chip comprehensive experiment box compact conformation in this utility model, volume are little, low cost, control are simple, without connecing
Line, is especially suitable for single-chip microcomputer abecedarian and learns single-chip microcomputer knowledge；And the various ancillary equipment on this experimental box are all by monolithic
Machine parallel port directly controls, and enormously simplify the difficulty of programming, it is simple to abecedarian quickly grasps single-chip microcomputer ABC.
Below in conjunction with the accompanying drawings this utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the population structure block diagram of circuit board of the present utility model.
Fig. 2 is LED module schematic diagram of the present utility model.
Fig. 3 is charactron module principle figure of the present utility model.
Fig. 4 is Independent keys module principle figure of the present utility model.
Fig. 5 is matrix keyboard module principle figure of the present utility model.
Fig. 6 is buzzer module principle figure of the present utility model.
Fig. 7 is 1602 Liquid Crystal Module schematic diagrams of the present utility model.
Fig. 8 is 12864 Liquid Crystal Module schematic diagrams of the present utility model.
Fig. 9 is real-time clock module schematic diagram of the present utility model.
Figure 10 is digital temperature sensor module principle figure of the present utility model.
Figure 11 is serial communication modular schematic diagram of the present utility model.
Figure 12 is relay module schematic diagram of the present utility model.
Figure 13 is I of the present utility model2C bus module schematic diagram.
Figure 14 is analog-to-digital conversion module schematic diagram of the present utility model.
Figure 15 is D/A converter module schematic diagram of the present utility model.
Figure 16 is single-chip minimum system module principle figure of the present utility model.
In accompanying drawing, 1 represents single-chip minimum system module, and 2 represent power module, and 3 represent LED module, and 4 represent charactron
Module, 5 represent Independent keys module, and 6 represent matrix keyboard module, and 7 represent buzzer module, and 8 represent 1602 Liquid Crystal Modules, and 9
Representing 12864 Liquid Crystal Modules, 10 represent real-time clock module, and 11 represent digital temperature sensor module, and 12 represent serial communication
Module, 13 represent relay module, and 14 write on one's behalf analog-to-digital conversion module, and 15 represent D/A converter module, and 16 represent I2C bus mould
Block.
Detailed description of the invention
A kind of teaching single chip comprehensive experiment box, the circuit board including casing and being arranged in casing, Program download
With data power multiplexing line, it is critical only that: the structure of described circuit board includes: single-chip minimum system module 1, power module
2 and be connected with single-chip microcomputer parallel port respectively LED module 3, charactron module 4, Independent keys module 5, matrix keyboard module 6,
Buzzer module 7, Liquid Crystal Module, real-time clock module 10, digital temperature sensor module 11, serial communication modular 12, relay
Device module 13, analog-to-digital conversion module 14, D/A converter module 15 and supporting I2C bus module 16.
Described Liquid Crystal Module includes: 1602 Liquid Crystal Module 8 and 12864 Liquid Crystal Modules 9.
Real-time timepiece chip model in described real-time clock module 10 is DS1302.
Temperature acquisition chip model in described digital temperature sensor module 11 is DS18B20.
In described analog-to-digital conversion module 14, the model of analog-digital converter is ADC0804.
In described D/A converter module 15, the model of digital to analog converter is DAC0832.
The structure of described circuit board also includes jump cap, above modules by jump cap arrange with power module 2 logical
Disconnected.
Described power module 2 uses dual power supply.Both can connect power supply adaptor to power, it is also possible to directly use download
Device is powered, the few ancillary equipment of letter.7805 voltage stabilizing chips on circuit board can ensure the steady of the work of experimental box when other power supplys are powered
Fixed.
Single-chip microcomputer in described single-chip minimum system module 1 is AT89S series monolithic or STC89 series monolithic.
This utility model, when specifically used, arranges as an example: the multiple block combiner on circuit board can form
Multifunctional digital perpetual calendar comprehensive practical traning circuit, by described single-chip minimum system module, Independent keys module, liquid crystal mould
Block, real-time clock DS1302 module, buzzer module, digital temperature sensor DS18B20 module form.
Referring to Figure 16, wherein, circuit board core is MCS-51 system single-chip microcomputer, it would however also be possible to employ STC series 51 chips, AT
Series 51 chips, Program download uses AVR series monolithic change and control, uses ASP download circuit, and crystal oscillator uses
Single socket connects, and can change 12MHz or 11.0592MHz crystal oscillator as required.
The power supply of circuit board is all extended out by single contact pin with ground and has been drawn, can not when carrying out comprehensive practical traning
With outside power supply and ground, directly by introducing power supply on experimental box.
The pin of parallel port able to programme is all extended out by the core chip portion of circuit board by single contact pin, Ke Yitong
Cross Du Pont's line and the signal of single-chip microcomputer is exported to outside, be conducive to being extended practical teaching and the exhibition of comprehensive practical training project
Open, the overall practical capability of exercise student ' is very helpful with preliminary study ability.
In Fig. 1, occupy plank center is single-chip minimum system module, and occuping on the left of plank is ADC0804 module,
DAC0832 module, relay module, buzzer module, LED module, serial communication modular, occuping on the upside of plank is charactron
Module, occuping on the right side of plank is matrix keyboard module, Independent keys module, 1602 Liquid Crystal Modules, 12864 Liquid Crystal Modules, number
Word temperature sensor DS18B20 module, real-time clock DS1302 module, occuping on the downside of one-chip computer module is power module.
In Fig. 2, U1 is singlechip chip seat, can insert MCS-51 series monolithic, and wherein, 40 feet connect 5V power supply, 20 feet
Meeting GND, 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillating circuit, 9 feet connect reset circuit, D1～D8 is 8 red light emitting diodes,
By jump cap, TM12 controls whether LED module switches on power.1～8 feet of U1 respectively by the resistance of 220 Ω of 1 1/8W with
The negative electrode of D1～D8 is connected.
In Fig. 3, U1 is singlechip chip seat, can insert MCS-51 series monolithic, in Fig. 3, and the crystal oscillating circuit of single-chip microcomputer
Not indicating with reset circuit, wherein, 40 feet connect 5V power supply, and 20 feet meet GND, and 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillator electricity
Road, 9 feet connect reset circuit, SHUMA1 and SHUMA2 is quaternity common anode charactron, and TM1 controls charactron module by jump cap
Whether switch on power.39～32 feet of U1 by the resistance of 220 Ω of 8 1/8W respectively with 11 feet of SHUMA1 and SHUMA2,7
Foot, 4 feet, 2 feet, 1 foot, 10 feet, 5 feet, 3 feet are connected, and 21～28 feet of U1 pass through resistance and Q1～Q8 of the 4.7K Ω of 8 1/8W
Base stage be connected, the colelctor electrode of Q1～Q8 connects 12 feet of SHUMA1 and SHUMA2,9 feet, 8 feet, 6 feet, the transmitting of Q1～Q8 respectively
Extremely unified 2 feet receiving TM1.
In Fig. 4, U1 is singlechip chip seat, can insert MCS-51 series monolithic, and wherein, 40 feet connect 5V power supply, 20 feet
Meeting GND, 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillating circuit, 9 feet connect reset circuit, S17～S20 is 4 four foot fine motion buttons.
11 feet of U1,12 feet, 13 feet, 14 feet are connected with 1 foot of S17～S20 respectively, and 4 feet of S17～S20 are unified is connected to 5V power supply.
In Fig. 5, U1 is singlechip chip seat, can insert MCS-51 series monolithic, in Fig. 5, and the crystal oscillating circuit of single-chip microcomputer
Not indicating with reset circuit, wherein, 40 feet connect 5V power supply, and 20 feet meet GND, and 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillator electricity
Road, 9 feet connect reset circuit, S1～S16 is 16 four foot fine motion buttons.The 1 foot unification of U1 is connected with 4 feet of S13～S16, U1
2 foot unifications be connected with 4 feet of S9～S12, the 3 foot unifications of U1 are connected with 4 feet of S5～S8, and 4 feet of U1 are unified with S1～S4
4 feet be connected, the 5 foot unifications of U1 are connected with 1 foot of S4, S8, S12, S16, and 6 feet of U1 are unified and 1 feet of S3, S7, S11, S15
Being connected, the 7 foot unifications of U1 are connected with 1 foot of S2, S6, S10, S14, and the 8 foot unifications of U1 are connected with 1 foot of S1, S5, S9, S13.
In Fig. 6, U1 is singlechip chip seat, can insert MCS-51 series monolithic, and wherein, 40 feet connect 5V power supply, 20 feet
Meeting GND, 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillating circuit, 9 feet connect reset circuit, and BELL is buzzer, and TM2 passes through jump cap control
Whether buzzer module processed switches on power.5 feet of U1 are connected with the base stage of Q9 by the resistance of 4.7K Ω of 1/8W, the transmitting of Q9
Pole is connected with 1 foot of TM2, and the colelctor electrode of Q9 is connected with the positive pole of BELL, and the negative pole of BELL is connected to the ground.
In Fig. 7, U1 is singlechip chip seat, can insert MCS-51 series monolithic, in Fig. 7, and the crystal oscillating circuit of single-chip microcomputer
Not indicating with reset circuit, wherein, 40 feet connect 5V power supply, and 20 feet meet GND, and 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillator electricity
Road, 9 feet connect reset circuit, and 1602 is 16 hole single-row socket, and for inserting the liquid crystal of 1602 models, RP1 is 20K Ω precision current potential
Device.39～32 feet of U1 7～14 feet with 1602 respectively are connected, and 23～25 feet of U1 4～6 feet with 1602 respectively are connected,
1 foot, 16 feet of 1602 are connected to the ground, and 2 feet, 15 feet are connected with power supply, and 2 feet are connected with 1 foot of RP1 simultaneously, 3 feet and 3 feet of RP1
Being connected, 2 feet of RP1 are connected to the ground.
In Fig. 8, U1 is singlechip chip seat, can insert MCS-51 series monolithic, in Fig. 8, and the crystal oscillating circuit of single-chip microcomputer
Not indicating with reset circuit, wherein, 40 feet connect 5V power supply, and 20 feet meet GND, and 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillator electricity
Road, 9 feet connect reset circuit, and 12864 is 20 hole single-row socket, and for inserting the liquid crystal of 12864 models, RP2 is 20K Ω precision current potential
Device.39～32 feet of U1 7～14 feet with 12864 respectively are connected, 23～27 feet of U1 respectively with 12864 4～6 feet, 15～
17 feet are connected, and 1 foot, 20 feet of 12864 are connected to the ground, and 2 feet, 19 feet are connected with power supply, and 2 feet are connected with 1 foot of RP2 simultaneously, 3 feet
Being connected with 3 feet of RP2,2 feet of RP2 are connected to the ground.
In Fig. 9, U1 is singlechip chip seat, can insert MCS-51 series monolithic, and wherein, 40 feet connect 5V power supply, 20 feet
Meeting GND, 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillating circuit, 9 feet connect reset circuit, and DS1302 is real-time timepiece chip
By jump cap, DS1302, TM8 control whether real-time clock DS1302 module switches on power.1 foot of U1,2 feet, 3 feet respectively with
7 feet of DS1302,6 feet, 5 feet be connected, 1 foot of DS1302 is connected with 1 foot of TM8, the 2 of DS1302,3 feet connect respectively Y2 1,
2 feet, electric capacity C3, C4 of 2 30PF the most in parallel, the other two ends of C3, C4 are unified to be connected to the ground, the 4 foot ground connection of DS1302,
8 feet of DS1302 connect 1 foot of JP1, and 2 feet of JP1 are connected to the ground.
In Figure 10, U1 is singlechip chip seat, can insert MCS-51 series monolithic, and wherein, 40 feet connect 5V power supply, 20 feet
Meeting GND, 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillating circuit, 9 feet connect reset circuit, and 18B20 is the SIP3 inserting DS18B20 chip
Socket.8 feet of U1 are connected with 2 feet of 18B20, the 1 foot ground connection of 18B20, the 4 of the external 1/8W of 3 feet of 18B20 .7K Ω
Pull-up resistor, the other end and 2 feet are connected.
In Figure 11, U1 is singlechip chip seat, can insert MCS-51 series monolithic, and wherein, 40 feet connect 5V power supply, 20 feet
Meeting GND, 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillating circuit, 9 feet connect reset circuit, and MAX232 is electrical level transferring chip socket,
DB9 is standard 9 hole serial ports socket.The 10 of U1,11 feet are connected with 9,10 feet of MAX232 respectively, the 1 of MAX232,3 feet indirectly
An indirect 10uF electric capacity of one 10uF electric capacity, 2 feet and power supply, an indirect 10uF electric capacity of 4,5 feet, between 6 feet and ground
Connecing a 10uF electric capacity, 7,8 feet connect the 2 of DB9 respectively, 3 feet, and 9,10 feet connect D1 Yu 4.7K Ω series circuit respectively, circuit another
Termination power, 15 foot ground connection, 16 feet connect power supply, the 5 foot ground connection of DB9.
In Figure 12, U1 is singlechip chip seat, can insert MCS-51 series monolithic, and wherein, 40 feet connect 5V power supply, 20 feet
Meeting GND, 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillating circuit, 9 feet connect reset circuit, and TM9 controls relay module by jump cap
Whether switch on power.15 feet of U1 are connected with 2 feet of TM9, and 1 foot of TM9 passes through the resistance of the 4.7K Ω of a 1/8W with Q10's
Base stage is connected, and the emitter stage of Q10 is connected with power supply, and the colelctor electrode of Q10 is connected with relay coil one end, and by one
The diode of IN4148 is connected with the other end of coil, the series circuit phase that the most also the 1K Ω resistance with D9 Yu 1/8W forms
Even, series circuit other end ground connection, TM10 is three binding posts, is connected with three contacts of relay respectively.
In Figure 13, U1 is singlechip chip seat, can insert MCS-51 series monolithic, and wherein, 40 feet connect 5V power supply, 20 feet
Meeting GND, 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillating circuit, 9 feet connect reset circuit, and 24Cxx is I2C EBI series of exterior
Memorizer.The 15 of U1,16 feet are connected with 6,5 feet of 24Cxx by the 4.7K Ω pull-up resistor of 1/8W respectively, the 1 of 24Cxx, 2,
3,4,7 foot ground connection, 8 feet connect power supply.
In Figure 14, U1 is singlechip chip seat, can insert MCS-51 series monolithic, and wherein, 40 feet connect 5V power supply, 20 feet
Meeting GND, 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillating circuit, 9 feet connect reset circuit, and ADC0804 is modulus conversion chip seat,
By jump cap, TM3 controls whether ADC switches on power.1～8 feet of U1 are connected with 18～11 feet of ADC0804 respectively, U1's
15,16,17 feet are connected with 1,2,3 feet of ADC0804 respectively, and the 4 of ADC0804, connect 103 electric capacity between 7 feet, 6 feet are even
Connecing resistance and the series circuit of 50K Ω potentiometer composition of the 10K Ω of a 1/8W, 7,8,10 foot ground connection, 9 feet are connected to two
Between the resistance of the 1K Ω of 1/8W, connecting the resistance of the 10K Ω of a 1/8W between 4,19 feet, 20 feet connect 2 feet of TM3, TM3's
1 foot connects power supply.
In Figure 15, U1 is singlechip chip seat, can insert MCS-51 series monolithic, and wherein, 40 feet connect 5V power supply, 20 feet
Meeting GND, 31 feet connect 5V power supply, and 18,19 feet connect crystal oscillating circuit, 9 feet connect reset circuit, and DAC0832 is analog-digital chip seat.U1
39～32 feet be connected with 7,6,5,4,16,15,14,13 feet of DAC0832 respectively, the 6 of U1,7 feet respectively with the 1 of DAC0832,
2 feet are connected, the 3 foot ground connection of DAC0832, and 8,19,20 feet connect 2 feet of TM11, and 10 feet are connected by 1 foot of D10 with TM11,11 feet
Being connected with 1 foot of TM11,12,17,18 foot ground connection, 3 feet of TM11 connect power supply.
Claims (9)
1. a teaching single chip comprehensive experiment box, structure includes casing and the circuit board being arranged in casing, its feature
Be: the structure of described circuit board includes: single-chip minimum system module (1), power module (2) and respectively with monolithic
The LED module (3) of machine parallel port connection, charactron module (4), Independent keys module (5), matrix keyboard module (6), buzzer mould
Block (7), Liquid Crystal Module, real-time clock module (10), digital temperature sensor module (11), serial communication modular (12), relay
Device module (13), analog-to-digital conversion module (14), D/A converter module (15) and supporting I2C bus module (16).
A kind of teaching single chip comprehensive experiment box the most according to claim 1, it is characterised in that: described Liquid Crystal Module bag
Include: 1602 Liquid Crystal Modules (8) and 12864 Liquid Crystal Modules (9).
A kind of teaching single chip comprehensive experiment box the most according to claim 1, it is characterised in that: described real-time clock mould
Real-time timepiece chip model in block (10) is DS1302.
A kind of teaching single chip comprehensive experiment box the most according to claim 1, it is characterised in that: described digital temperature passes
Temperature acquisition chip model in sensor module (11) is DS18B20.
A kind of teaching single chip comprehensive experiment box the most according to claim 1, it is characterised in that: described analog digital conversion mould
In block (14), the model of analog-digital converter is ADC0804.
A kind of teaching single chip comprehensive experiment box the most according to claim 1, it is characterised in that: described digital-to-analogue conversion mould
In block (15), the model of digital to analog converter is DAC0832.
A kind of teaching single chip comprehensive experiment box the most according to claim 1, it is characterised in that: the knot of described circuit board
Also including jump cap in structure, above modules arranges the break-make with power module (2) by jump cap.
A kind of teaching single chip comprehensive experiment box the most according to claim 1, it is characterised in that: described power module
(2) dual power supply is used.
A kind of teaching single chip comprehensive experiment box the most according to claim 1, it is characterised in that: described single-chip microcomputer is minimum
Single-chip microcomputer in system module (1) is AT89S series monolithic or STC89 series monolithic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620301347.4U CN205827750U (en) | 2016-04-02 | 2016-04-02 | A kind of teaching single chip comprehensive experiment box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620301347.4U CN205827750U (en) | 2016-04-02 | 2016-04-02 | A kind of teaching single chip comprehensive experiment box |
Publications (1)
| Publication Number | Publication Date |
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| CN205827750U true CN205827750U (en) | 2016-12-21 |
Family
ID=58147606
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| CN201620301347.4U Expired - Fee Related CN205827750U (en) | 2016-04-02 | 2016-04-02 | A kind of teaching single chip comprehensive experiment box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-04-02 CN CN201620301347.4U patent/CN205827750U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20190402 |
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| CF01 | Termination of patent right due to non-payment of annual fee |