CN206249740U - A kind of development board for single chip computer teaching based on wireless communication technique - Google Patents
A kind of development board for single chip computer teaching based on wireless communication technique Download PDFInfo
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- CN206249740U CN206249740U CN201621222488.3U CN201621222488U CN206249740U CN 206249740 U CN206249740 U CN 206249740U CN 201621222488 U CN201621222488 U CN 201621222488U CN 206249740 U CN206249740 U CN 206249740U
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Abstract
A kind of development board for single chip computer teaching based on wireless communication technique, including integrally disposed in single-chip microcomputer on one piece of pcb board, display unit, data receipt unit, ISP interface modules, the automatic download modules of USB, driving stepper motor module, data memory module and 4*4 matrix keyboard modules, driving stepper motor module is connected and drives buzzer module, D.C. regulated power supply module and the WiFi module being connected with the microcontroller communication are also equipped with pcb board, Internet of Things module and bluetooth module and experimental result detection module, experimental result detection module is connected and drives voice module, voice module connects loudspeaker；The utility model is with low cost, multiple functional, stable performance, realize the wireless telecommunications between development board for single chip computer teaching and other systems, and experimental result is detected automatically, the teaching of teacher is facilitated, it is easy to student to be quickly familiar with and grasp development board for single chip computer teaching.
Description
Technical field
The utility model is related to wireless communication technique and development board for single chip computer teaching technical field, especially a kind of to be based on nothing
The development board for single chip computer teaching of line mechanics of communication.
Background technology
The migration path that singlechip technology has been passed by nearly 20 years since the development.The development of singlechip technology is with microprocessor
Device (MPU) technology and very large scale integration technology develop into guide, to be widely applied field pulling, show more micro-
Processor has more the development trend of individual character.
Currently, development board for single chip computer teaching possesses conventional teaching demonstration function mainly based on teaching demonstration.However,
The module of aided education is not provided with development board for single chip computer teaching, and the functional module on development board for single chip computer teaching compares
It is many, for the student of most of universities, it is difficult in teaching process quick familiar and is grasped, and needed more
Knowwhy and put into practice technical ability and go to be familiar with these functional modules, thus the experimental result of development board for single chip computer teaching cannot be completed
Active detecting is worked, and the work of this part is typically completed by teacher, thereby increases the workload of teacher, is also unfavorable for student's
Improve in study.
At the same time, developing rapidly with science and technology, Bluetooth communication, WiFi communication technology and the Internet of Things communication technology
Although being used widely in life, development board for single chip computer teaching is not applied to but.For this provides a kind of based on indigo plant
The development board for single chip computer teaching of the wireless communication techniques such as tooth, WiFi, Internet of Things, to solve existing development board for single chip computer teaching not
Possess the shortcoming of communication function, and realize that the wireless telecommunications between development board for single chip computer teaching and other systems just seem particularly heavy
Will.
The content of the invention
The purpose of this utility model seeks to solve the current mould for but lacking aided education on development board for single chip computer teaching
Block, it is impossible to independently independently detected to experimental result, and do not possess communication function, it is unfavorable for that student carries out study of networking
Problem, for this provides a kind of development board for single chip computer teaching based on wireless communication technique.
Concrete scheme of the present utility model is：A kind of development board for single chip computer teaching based on wireless communication technique, including collection
Into the display unit, data receipt unit, the ISP interfaces that are arranged at single-chip microcomputer and the microcontroller communication connection on one piece of pcb board
The automatic download module of module, USB, driving stepper motor module, data memory module and 4*4 matrix keyboard modules, stepper motor
Drive module is connected and drives buzzer module, it is characterized in that：Be also equipped with pcb board D.C. regulated power supply module and with it is described
WiFi module, Internet of Things module and bluetooth module and experimental result detection module that microcontroller communication is connected, experimental result inspection
Survey module to connect and drive voice module, voice module connection loudspeaker, D.C. regulated power supply module is each mould on pcb board
Block provides working power.
Display unit described in the utility model includes liquid crystal display, 8*8 lattice modules, LED lamp module, charactron
Module, and liquid crystal display uses chip LCD1602, and LED lamp module is 16 LEDs of driven in two modes, digital
Tube module is 8 dynamic charactrons.
Data receipt unit described in the utility model includes that infrared remote control receiver module, temperature sensor module, 38 are translated
Code device module, A/D modular converters and 8 latch modules, and infrared remote control receiver module uses the infrared joints of IR, and temperature is passed
Sensor module is 18B20 interfaces, and 38 decoder modules use the chip onboard photosensitive, thermistor of 74HC138, A/D modular converter,
8 latch modules use chip 74HC573.
Single-chip microcomputer described in the utility model uses the C51 systems of the SRAM 64K Flash of model STC90C516 1280
Row single-chip microcomputer, single-chip microcomputer is the clock module of DS1302 equipped with chip model, and WiFi module uses chip ESP8266, Internet of Things
The use chip ZA2530A of net module, bluetooth module uses chip CC2540.
Driving stepper motor module described in the utility model uses chip ULN2003D, and buzzer module uses passive honeybee
Ring device, ISP interface modules use AT89S52 single-chip microcomputers, data memory module to use the chip automatic download module of 24C02, USB
Using USB serial port chips CH340.
Experimental result detection module described in the utility model is single using the STM32 series of model STM32F103RDT6
Piece machine.
The utility model has advantages below：
(1) the utility model is with low cost, multiple functional, stable performance, meets teaching request and the student of teacher
Learning demand；
(2) the utility model realizes and experimental result is independently detected, and carries out language by voice module, loudspeaker
Sound reports breath, greatly facilitates the teaching of teacher, alleviates the teaching load of teacher, and is easy to student to be quickly familiar with and grasps single
Piece machine Instructional Development plate；
(3) the utility model realizes monolithic by using Bluetooth communication, WiFi communication technology and the Internet of Things communication technology
Wireless telecommunications between machine Instructional Development plate and other systems；
(4) the utility model may be connected to server, be easy to record and preserve experimental data.
Brief description of the drawings
Fig. 1 is control structure block diagram of the present utility model；
Fig. 2 is the circuit theory diagrams of single-chip microcomputer in the utility model；
Fig. 3 is the circuit theory diagrams of WiFi module in the utility model；
Fig. 4 is the circuit theory diagrams of digital tube module in the utility model；
Fig. 5 is the circuit theory diagrams of Internet of Things module in the utility model；
Fig. 6 is the circuit theory diagrams of bluetooth module in the utility model；
Fig. 7 is the circuit theory diagrams of liquid crystal display in the utility model；
Fig. 8 is the circuit theory diagrams of LED module in the utility model；
Fig. 9 is the circuit theory diagrams of clock module in the utility model；
Figure 10 is the circuit theory diagrams of infrared remote control receiver module in the utility model；
Figure 11 is the circuit theory diagrams of temperature sensor module in the utility model；
Figure 12 is the circuit theory diagrams of driving stepper motor module and buzzer module in the utility model；
Figure 13 is the circuit theory diagrams of experimental result detection module and voice module in the utility model.
In figure：1-pcb board, 2-single-chip microcomputer, 3-display unit, 4-data receipt unit, 5-buzzer module, 6-
ISP interface modules, the automatic download modules of 7-USB, 8-driving stepper motor module, 9-data memory module, 10-4*4 squares
Battle array Keysheet module, 11-D.C. regulated power supply module, 12-WiFi module, 13-Internet of Things module, 14-bluetooth module, 15-
Voice module, 16-loudspeaker, 17-liquid crystal display, 18-8*8 lattice modules, 19-LED lamp module, 20-charactron
Module, 21-infrared remote control receiver module, 22-temperature sensor module, 23-38 decoder modules, 24-A/D moduluss of conversion
Block, 25-8 latch modules, 26-clock module, 27-experimental result detection module.
Specific embodiment
Referring to Fig. 1-13, the utility model includes integrally disposed in single-chip microcomputer 2 and the single-chip microcomputer 2 on one piece of pcb board 1
Communicate display unit 3, data receipt unit 4, the automatic download module 7, driving stepper motor of ISP interface modules 6, USB of connection
Module 8, data memory module 9 and 4*4 matrix keyboards module 10, be also equipped with pcb board 1 D.C. regulated power supply module 11 and with
WiFi module 12, Internet of Things module 13 and bluetooth module 14 and experimental result detection module that the communication of the single-chip microcomputer 2 is connected
27, experimental result detection module 27 is connected and drives voice module 15, the connection loudspeaker 16 of voice module 15, D.C. regulated power supply
Module 11 provides working power for the modules on pcb board 1.
Display unit 3 described in the present embodiment include liquid crystal display 17,8*8 lattice modules 18, LED lamp module 19,
Digital tube module 20, and liquid crystal display 17 uses chip LCD1602, and LED lamp module 19 is 16 driven in two modes
LED, digital tube module 20 is 8 dynamic charactrons.
Data receipt unit 4 described in the present embodiment includes infrared remote control receiver module 21, temperature sensor module 22,38
Decoder module 23, A/D modular converters 24 and 8 latch modules 25, and infrared remote control receiver module 21 is infrared using IR
Joint, temperature sensor module 22 is 18B20 interfaces, and 38 decoder module 23 is using chip 74HC138, A/D modular converter 24
Onboard photosensitive, thermistor, 8 latch modules 25 are using chip 74HC573.
ISP interface modules 6 use AT89S52 single-chip microcomputers, data memory module 9 to use chip 24C02 in the present embodiment,
The automatic download modules 7 of USB are using USB serial port chips CH340.
Experimental result detection module 27 realizes the autonomous detection to each functional module experimental result in the present embodiment, and
Voice broadcast breath is carried out by voice module 15, loudspeaker 16, the teaching of teacher is greatly facilitated, the teaching for alleviating teacher is born
Load, and it is easy to student to be quickly familiar with and grasp development board for single chip computer teaching.
Single-chip microcomputer 2 described in the present embodiment is serial using the C51 of the SRAM 64K Flash of model STC90C516 1280
Single-chip microcomputer, its circuit theory diagrams as shown in Fig. 2 the working frequency of single-chip microcomputer 2 is in 0~40MHz, equivalent to common 8051 single-chip microcomputer
0~80MHz of working frequency, and be the clock module 26 of DS1302, the circuit theory of clock module 26 equipped with chip model
Figure is as shown in figure 9,5 pins, 6 pins, 7 pins, 15 pins respectively with single-chip microcomputer 2,14 pins, 16 pins of clock module 26
Connection.There are 31 ram cells in DS1302 pieces, have two ways to the operation of ram in slice：Single byte mode and multibyte side
Formula.It is single byte read-write mode when control command word is C0H ~ FDH, the D5~D1 in command word is used to select corresponding RAM
Unit, wherein odd number are read operation, and even number is write operation.The rising edge of the next SCLK clocks after the input of control instruction word
When, data are written into DS1302, and data input is ascended the throne 0 since low level.Equally, under after the control instruction word immediately following 8
The trailing edge of one SCLK pulse reads the data of DS1302, from low level 0 to high-order 7 when reading data.
In the present embodiment WiFi module 12 use chip ESP8266, its circuit theory diagrams as shown in figure 3, ESP8266 22
Pin is TXD, is the serial ports transmitting terminal of module, and 21 pins are RXD, are the serial ports receiving terminals of module, and the 22 of WiFi module 12 draws
Pin and 21 pins are connected by Du Pont's line with 10 pins and 11 pins of single-chip microcomputer 2 respectively, complete WiFi module 12 and single-chip microcomputer 2
Between communication.
The circuit theory diagrams of digital tube module 20 are as shown in figure 4,74HC245 chips in digital tube module in the present embodiment
2 pins, 3 pins, 4 pins, 5 pins, 6 pins, 7 pins, 8 pins, 9 pins 39 pins respectively with single-chip microcomputer 2,38 draw
Pin, 37 pins, 36 pins, 35 pins, 34 pins, 33 pins, the connection of 32 pins.The utility model uses common cathode LED and shows
Show device.During using charactron light-emitting diode display, in order to show numeral or character, it is necessary to which numeral or character are encoded.Seven hop counts
Code is managed and adds a decimal point, 8 sections altogether, therefore for the coding that light-emitting diode display is provided is exactly a byte.
The use chip ZA2530A of Internet of Things module 13 in the present embodiment, its circuit theory diagrams is as shown in figure 5, ZA2530A
18 pins be TX, be the serial ports transmitting terminal of module, 19 pins are RX, are the serial ports receiving terminals of module, Internet of Things module 13
18 pins and 19 pins are connected by Du Pont's line with 10 pins and 11 pins of single-chip microcomputer 2 respectively, complete Internet of Things module 13 with
Communication between single-chip microcomputer 2.
Bluetooth module 14 uses chip CC2540, its circuit theory diagrams as shown in fig. 6, CC2540's 14 draws in the present embodiment
Pin is RX, is the serial ports transmitting terminal of module, and 15 pins are TX, is the serial ports receiving terminal of module, 15 pins of bluetooth module 14 and
14 pins are connected by Du Pont's line with 10 pins and 11 pins of single-chip microcomputer 2 respectively, are completed between bluetooth module 14 and single-chip microcomputer 2
Communication.
Liquid crystal display 17 uses chip LCD1602 in the present embodiment, and its circuit theory diagrams is as shown in fig. 7, LCD1602
4 pins, 5 pins, 6 pins, 7 pins, 8 pins, 9 pins, 10 pins, 11 pins, 12 pins, 13 pins, 14 pins difference
27 pins, 24 pins, 28 pins, 39 pins, 38 pins, 37 pins, 36 pins, 35 pins, 34 pins, 33 with 51 single-chip microcomputers
Pin, the connection of 32 pins.LCD1602 be it is a kind of be specifically used to display letter, numeral, the dot matrix type Liquid Crystal Module of symbol, by
5x10 dot character position composition, each dot character position can with display one character, have between every a point away from
, also there is interval at interval between often going, and serves the effect of character pitch and line space.
In the present embodiment LED module 19 circuit theory diagrams as shown in figure 8,1 pin of the RP7 of LED module 19,2 pins,
3 pins, 4 pins, 5 pins, 6 pins, 7 pins, 8 pins 21 pins respectively with single-chip microcomputer 2,22 pins, 23 pins, 24 are drawn
Pin, 25 pins, 26 pins, 27 pins, the connection of 28 pins.The work of LED is directive, only when positive level is connected to LED sun
Pole, could work when negative pole is connected to the negative electrode of LED, if reversal connection LED is cisco unity malfunction, when the anode series of LED
One resistance of connection, is then attached to power supply VCC, and the negative electrode of LED is connected to P2 mouthfuls of single-chip microcomputer 2, and single-chip microcomputer 2 is corresponding
IO is assigned to low level, and corresponding LED can just be lit.
The circuit theory diagrams of infrared remote control receiver module 21 are as shown in Figure 10 in the present embodiment, infrared remote control receiver module
1 pin connects 12 pins of single-chip microcomputer 2.In order to improve interference free performance and reduce electrical source consumption, IR remote controller is often with carrier wave
Mode transmits binary coding, and conventional carrier frequency is 38kHz, and this is the 455kHz crystal oscillators that are used by transmitting terminal determines
's.Integral frequency divisioil is carried out to crystal oscillator in transmitting terminal, divide ratio typically takes 12, so the ≈ 37.9kHz ≈ of 455kHz ÷ 12
38kHz.Also there are some remote control systems using 36kHz, 40 kHz, 56 kHz etc., typically come by the frequency of oscillation of transmitting terminal crystal oscillator
Determine.So, IR remote controller is by remote signal（Binary pulse code）It is modulated on the carrier wave of 38KHz, buffered amplification
After deliver to infrarede emitting diode, be converted into what infrared signal was launched.Infrared receiving set is by infrared receiving circuit, red
Outer decoding, power supply and application circuit composition.The Main Function of infrared remote control receiver is the infrared light for sending remote control transmitter
Letter improvement changes electric signal into, then amplify, amplitude limit, detection, shaping, form telecommand pulse, output to remote control microprocessor.
Temperature sensor module 22 uses chip DS18820 in the present embodiment, and its circuit theory diagrams is as shown in figure 11, temperature
2 pins of sensor assembly 22 connect 17 pins of single-chip microcomputer 2.DS18820 can direct reading number Temperature numerical, temperature passes
The precision of sensor module 22 is 9,10,11 or 12 of user-programmable, respectively with 0.5 DEG C, 0.25 DEG C, 0.125 DEG C and
0.0625 DEG C of incremental increase, the precision given tacit consent under power-up state is 12, and DS18B20 keeps low-power consumption to wait shape after starting
State, when needing to perform temperature survey and AD conversion, bus control unit must send out order, after converting, the temperature of generation
In the temperature register that data are stored in scratch pad memory in the form of two bytes, DS18B20 continues to remain waiting for state.
Driving stepper motor module 8 uses chip ULN2003D in the present embodiment, and its circuit theory diagrams is as shown in figure 12,
1 pin, 2 pins, 3 pins, 4 pins, 5 pins of ULN2003D 1 pin respectively with single-chip microcomputer 2,2 pins, 3 pins, 4 are drawn
Pin, the connection of 6 pins.The BZ pins of buzzer module 5 are connected with 12 pins of ULN2003D.Electromagnetic buzzer by oscillator,
Magnet coil, magnet, vibrating diaphragm and shell etc. are constituted.After switching on power, the voice-frequency signalling current that oscillator is produced is by electricity
Magnetic coil, makes magnet coil produce magnetic field, and vibrating diaphragm under the interaction of magnet coil and magnet, send out by periodically vibration
Sound.ULN2003D is high withstand voltage, high current Darlington display, is made up of seven silicon NPN Darlington transistors, for driving buzzer
Module 5.
Experimental result detection module 27 uses the STM32 series monolithics of model STM32F103RDT6 in the present embodiment,
It is whether correct for test experience result；Voice module 15 uses chip NVO80c, and its circuit theory diagrams is as shown in figure 13,
3 pins of NVO80c are connected with 36 pins of experimental result detection module 27.The list of experimental result detection module 27 and single-chip microcomputer 2
Piece type number is identical with single-chip microcomputer pin sequence, and each pin of experimental result detection module 27 is distinguished with each pin of single-chip microcomputer 2
Correspondence connection.Downloaded by single-chip microcomputer 2, draw experimental result, experimental result detection module 27 carries out experimental result detection.
When experimental result is correct, the output signal of experimental result detection module 27, the controlling loudspeaker 16 of voice module 15 sends " tests into
The voice of work(".When experimental result mistake, the output signal of experimental result detection module 27, the controlling loudspeaker 16 of voice module 15
Send the voice of " the failure of an experiment ".
The utility model C51 series monolithics are operated for core, there is 16 kinds of SCM Experimentation Teaching demo functions, are had
Bluetooth module 14, WiFi module 12 and Internet of Things module 13 realize different development board for single chip computer teaching between information mutual communication.
User can do 16 kinds of different experiments by microcomputer development plate, then upload to service by wireless communication technology data again
On device.At the same time, the utility model also function with automatic detection experimental result, user carries out microcomputer development plate reality
After testing, development board for single chip computer teaching can automatically test experience result it is whether correct, and voice broadcast is carried out by loudspeaker 16.
Claims (6)
1. a kind of development board for single chip computer teaching based on wireless communication technique, including it is integrally disposed in single-chip microcomputer on one piece of pcb board,
Display unit, data receipt unit, ISP interface modules, the automatic download modules of USB, the stepping being connected with the microcontroller communication
Motor drive module, data memory module and 4*4 matrix keyboard modules, driving stepper motor module are connected and drive buzzer mould
Block, it is characterized in that：Be also equipped with pcb board D.C. regulated power supply module and be connected with the microcontroller communication WiFi module,
Internet of Things module and bluetooth module and experimental result detection module, experimental result detection module are connected and drive voice module,
Voice module connects loudspeaker, and D.C. regulated power supply module provides working power for the modules on pcb board.
2. a kind of development board for single chip computer teaching based on wireless communication technique according to claim 1, it is characterized in that：It is described
Display unit includes liquid crystal display, 8*8 lattice modules, LED lamp module, digital tube module, and liquid crystal display is adopted
Chip LCD1602 is used, LED lamp module is 16 LEDs of driven in two modes, and digital tube module is 8 dynamic charactrons.
3. a kind of development board for single chip computer teaching based on wireless communication technique according to claim 1, it is characterized in that：It is described
Data receipt unit includes infrared remote control receiver module, temperature sensor module, 38 decoder modules, A/D modular converters and 8
Latch module, and infrared remote control receiver module uses the infrared joints of IR, and temperature sensor module is 18B20 interfaces, and 38 translate
Code device module uses the chip onboard photosensitive, thermistor of 74HC138, A/D modular converter, 8 latch modules to use chip
74HC573。
4. a kind of development board for single chip computer teaching based on wireless communication technique according to claim 1, it is characterized in that：It is described
Single-chip microcomputer uses the C51 series monolithics of the SRAM 64K Flash of model STC90C516 1280, and single-chip microcomputer is equipped with chip
The clock module of model DS1302, WiFi module uses chip ESP8266, the use chip ZA2530A of Internet of Things module, blue
Tooth module uses chip CC2540.
5. a kind of development board for single chip computer teaching based on wireless communication technique according to claim 1, it is characterized in that：It is described
Driving stepper motor module uses chip ULN2003D, and buzzer module uses passive buzzer, and ISP interface modules are used
AT89S52 single-chip microcomputers, data memory module uses USB serial port chips using the automatic download module of chip 24C02, USB
CH340。
6. a kind of development board for single chip computer teaching based on wireless communication technique according to claim 1, it is characterized in that：It is described
Experimental result detection module uses the STM32 series monolithics of model STM32F103RDT6.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109471830A (en) * | 2018-11-08 | 2019-03-15 | 徐州生波网络科技有限公司 | Teaching development external member based on Arduino |
| CN109542022A (en) * | 2018-12-25 | 2019-03-29 | 海南艾思能达教育文化科技有限公司 | A kind of program-controlled plate and its program down-loading method for capableing of wireless downloading program |
| CN109557845A (en) * | 2018-11-18 | 2019-04-02 | 安徽大学 | A kind of parameter setter based on wireless telecommunications |
| CN109658787A (en) * | 2017-10-12 | 2019-04-19 | 江南大学 | A kind of open source Internet of Things infrastest platform |
| CN109949671A (en) * | 2019-04-24 | 2019-06-28 | 河北工业大学 | A kind of teaching experiment platform based on STM32 single-chip microcontroller |
| CN110264840A (en) * | 2019-06-28 | 2019-09-20 | 顺德职业技术学院 | A kind of unit number supervisor software design approach |
| CN111031626A (en) * | 2019-12-31 | 2020-04-17 | 黑龙江大学 | Household networked LED combined lighting lamp |
| CN113129672A (en) * | 2020-01-10 | 2021-07-16 | 黑龙江科技大学 | Building block type modularized Internet of things teaching hardware practice platform |
| CN113129712A (en) * | 2021-03-16 | 2021-07-16 | 雷霆 | Logic training development board |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109658787A (en) * | 2017-10-12 | 2019-04-19 | 江南大学 | A kind of open source Internet of Things infrastest platform |
| CN109471830A (en) * | 2018-11-08 | 2019-03-15 | 徐州生波网络科技有限公司 | Teaching development external member based on Arduino |
| CN109557845A (en) * | 2018-11-18 | 2019-04-02 | 安徽大学 | A kind of parameter setter based on wireless telecommunications |
| CN109542022A (en) * | 2018-12-25 | 2019-03-29 | 海南艾思能达教育文化科技有限公司 | A kind of program-controlled plate and its program down-loading method for capableing of wireless downloading program |
| CN109949671A (en) * | 2019-04-24 | 2019-06-28 | 河北工业大学 | A kind of teaching experiment platform based on STM32 single-chip microcontroller |
| CN110264840A (en) * | 2019-06-28 | 2019-09-20 | 顺德职业技术学院 | A kind of unit number supervisor software design approach |
| CN111031626A (en) * | 2019-12-31 | 2020-04-17 | 黑龙江大学 | Household networked LED combined lighting lamp |
| CN113129672A (en) * | 2020-01-10 | 2021-07-16 | 黑龙江科技大学 | Building block type modularized Internet of things teaching hardware practice platform |
| CN113129712A (en) * | 2021-03-16 | 2021-07-16 | 雷霆 | Logic training development board |
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