CN204596275U - Based on the experimental development board of multi of ARM - Google Patents
Based on the experimental development board of multi of ARM Download PDFInfo
- Publication number
- CN204596275U CN204596275U CN201520188746.XU CN201520188746U CN204596275U CN 204596275 U CN204596275 U CN 204596275U CN 201520188746 U CN201520188746 U CN 201520188746U CN 204596275 U CN204596275 U CN 204596275U
- Authority
- CN
- China
- Prior art keywords
- pin
- communication interface
- resistance
- arm
- interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a kind of experimental development board of multi based on ARM, it relates to experimental facilities research and development field.ARM microprocessor is connected with crystal oscillating circuit, reset circuit, jtag interface circuit, power-switching circuit, communication interface modules and input/output module respectively, and communication interface modules comprises I
2c communication interface, SPI communication interface and serial communication interface, input/output module comprises LED running lamp module, LCD display module, Independent keys, temperature measuring circuit and infrared remote controller, I
2c communication interface, SPI communication interface, serial communication interface, LED running lamp module, LCD display module, Independent keys, temperature measuring circuit, infrared remote controller are all connected with ARM microprocessor.Separate between each functional module of the utility model, do not interfere with each other, be convenient to the study of beginner, convenient debugging, shortens the R&D cycle of developer, reduces cost of development, economizes on resources.
Description
Technical field
The utility model relates to experimental facilities research and development field, be specifically related to the experimental development board of multi based on ARM.
Background technology
Along with the fast development of computer technology and semiconductor technology, the embedded microcontrollers such as single-chip microcomputer achieve in every field and apply widely, ARM (Advanced RISC Machines) is an esbablished corporation of microprocessor industry, devise the risc processor that large quantity high performance, cheapness, power consumption are low, have that performance is high, cost is low and the feature of low-power consumption, current ARM microprocessor has been widely used in the fields such as wireless product, PDA, GPS, consumer electronics, automotive electronics, Industry Control, medical product, smart card.
Traditional ARM experimental box bridging functionality is too many, complicated, experimentally handbook is only needed to carry out simple operations when student tests, and the program that oneself is finished can only be loaded in ARM microprocessor and test, student only can modify to program, but well can not understand the annexation of hardware circuit, can not understand the contact between software and hardware well, so be unfavorable for grasping this gate technique, be also unfavorable for the cultivation of students ' actual situation manipulative ability.
In order to solve the problem, design based on the experimental development board of multi of ARM or necessary.
Utility model content
For the deficiency that prior art exists, the utility model object is to provide a kind of experimental development board of multi based on ARM, rational in infrastructure, adopt modular design, separate between each functional module, do not interfere with each other, to be more convenient for the study of beginner, convenient debugging, shortens the R&D cycle of developer, greatly reduces cost of development, economizes on resources simultaneously.
To achieve these goals, the utility model realizes by the following technical solutions: based on the experimental development board of multi of ARM, comprise ARM microprocessor, crystal oscillating circuit, reset circuit, jtag interface circuit, power-switching circuit, communication interface modules and input/output module, ARM microprocessor is connected with crystal oscillating circuit, reset circuit, jtag interface circuit, power-switching circuit, communication interface modules and input/output module respectively, USB interface connects power-switching circuit, and described communication interface modules comprises I
2c communication interface, SPI communication interface and serial communication interface, input/output module comprises LED running lamp module, LCD display module, Independent keys, temperature measuring circuit and infrared remote controller, I
2c communication interface, SPI communication interface, serial communication interface, LED running lamp module, LCD display module, Independent keys, temperature measuring circuit, infrared remote controller are all connected with ARM microprocessor; Described ARM microprocessor adopts microprocessor STM32F103VET6; LED running lamp module is made up of side by side only LED, can realize the function of its circulation flowing water flicker; Independent keys uses two touch-switchs, can control the flicker of the LED on development board.
As preferably, described reset circuit adopts rc reset, and with the addition of switch, enable hand-reset; Crystal oscillating circuit adopts 8M active crystal oscillator, and through the PLL frequency multiplier circuit of microprocessor internal, highest frequency can reach 72MHz; Jtag interface circuit adopts the special interface of ARM, can on-line debugging; Power-switching circuit have employed USB interface and gets 5V power supply, and converts 5V to 3.3V by reduction voltage circuit, and the 3.3V after conversion gives microprocessor power supply after filtering is stable.
As preferably, described LCD display module adopts resistive touch liquid crystal display, LCD display module is connected by FSMC interface with ARM microprocessor, LCD display module comprises LCD driving chip, 2 pin of LCD driving chip, 23 pin, 25 pin, 26 pin, 27 pin connect the PE1 pin of ARM microprocessor respectively, PE0 pin, PE2 pin, PE3 pin, PE4 pin, 6 pin-14 pin of LCD driving chip connect the PE15 pin-PE7 pin of ARM microprocessor respectively, 3 pin-4 pin of LCD driving chip connect the PD10 pin-PD8 pin of ARM microprocessor respectively, 15 pin-22 pin of LCD driving chip connect the PD1 pin of ARM microprocessor respectively, PD0 pin, PD15 pin, PD14 pin, PD4 pin, PD5 pin, PD11 pin, PD7 pin, 24 pin of LCD driving chip, 28 pin connect the PD13 pin of ARM microprocessor respectively, PB1 pin, 29 pin of LCD driving chip connect the first resistance to 5V power end, LCD driving chip adopts driving chip ILI9341, Chinese and English character can be realized, the function that the display of picture and single-point touch.
As preferably, described I
2c communication interface comprises storage chip, 1 pin-4 pin of storage chip, the equal ground connection of 7 pin, 5 pin, 6 pin of storage chip, between 7 pin and 8 pin, be connected to the second resistance, the 3rd resistance, the first electric capacity respectively, 5 pin of storage chip, 6 pin connect PB7 pin, the PB6 pin of ARM microprocessor respectively, and described storage chip adopts storage chip AT24C02.
As preferably, described SPI communication interface comprises wireless transceiver, 3 pin-8 pin of wireless transceiver connect PE5 pin, PE6 pin, PA5 pin, PA7 pin, PA6 pin, the PC4 pin of ARM microprocessor respectively, and described wireless transceiver adopts monolithic wireless transceiver chip NRF24L01.
As preferably, described serial communication interface adopts interface convertor, 1 pin of interface convertor, 5 pin connect the PA10 pin of ARM microprocessor respectively, PA9 pin, 1 pin of interface convertor, 5 pin, 6 pin, 13 pin, 14 pin connect the 4th resistance respectively, 5th resistance, 6th resistance, 7th resistance, 8th resistance is to 3.3V power end, crystal oscillator is connected between 27 pin of interface convertor and 28 pin, 27 pin of interface convertor, 28 pin connect the second electric capacity respectively, 3rd electric capacity extremely is held, 16 pin of interface convertor, 15 pin connect the 9th resistance respectively, tenth resistance is to USB interface, described interface convertor adopts RS232-USB interface convertor PL2303, realize the function that USB turns serial ports, enhance the convenience of use.
As preferably, described temperature measuring circuit comprises temperature sensor, 2 pin of temperature sensor receive the PB0 pin of ARM microprocessor, the 11 resistance is connected between 2 pin of temperature sensor and 3 pin, temperature sensor adopts temperature sensor DS18B20 to carry out collecting temperature, has that volume is little, precision is high, an advantage such as digital temperature transition and output.
As preferably, described infrared remote controller comprises infrared receiver, 1 pin of infrared receiver connects the PA8 pin of ARM microprocessor, the 12 resistance is connected between 1 pin of infrared receiver and 3 pin, 3 pin of infrared receiver connect the 13 resistance to 3.3V power end, infrared receiver adopts integrated infrared receiver HS0038B, and is equipped with the function that corresponding telepilot realizes closely remote control.
The beneficial effects of the utility model: adopt independently modular design, are convenient to the relation understanding software restraint; Simplicity of design, the R&D cycle is short, and cost is low, can batch making external member, meets the demand of Students ' Learning ARM.
Accompanying drawing explanation
The utility model is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is the connecting circuit figure of the utility model LCD display module;
Fig. 3 is the utility model I
2the connecting circuit figure of C communication interface;
Fig. 4 is the connecting circuit figure of the utility model SPI communication interface;
Fig. 5 is the connecting circuit figure of the utility model serial communication interface;
Fig. 6 is the connecting circuit figure of the utility model temperature measuring circuit;
Fig. 7 is the connecting circuit figure of the utility model infrared remote controller.
Embodiment
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the utility model further.
With reference to Fig. 1-7, this embodiment is by the following technical solutions: based on the experimental development board of multi of ARM, comprise ARM microprocessor 1, crystal oscillating circuit 2, reset circuit 3, jtag interface circuit 4, power-switching circuit 5, communication interface modules and input/output module, ARM microprocessor 1 is connected with crystal oscillating circuit 2, reset circuit 3, jtag interface circuit 4, power-switching circuit 5, communication interface modules and input/output module respectively, USB interface 6 connects power-switching circuit 5, and described communication interface modules comprises I
2c communication interface 7, SPI communication interface 8 and serial communication interface 9, input/output module comprises LED running lamp module 10, LCD display module 11, Independent keys 12, temperature measuring circuit 13 and infrared remote controller 14, I
2c communication interface 7, SPI communication interface 8, serial communication interface 9, LED running lamp module 10, LCD display module 11, Independent keys 12, temperature measuring circuit 13, infrared remote controller 14 are all connected with ARM microprocessor 1; Described ARM microprocessor 1 adopts microprocessor STM32F103VET6, high-performance, low cost, low-power consumption.
It should be noted that described reset circuit 3 adopts rc reset, and with the addition of switch, enable hand-reset; Crystal oscillating circuit 2 adopts the active crystal oscillator of 8M, and the PLL frequency multiplier circuit through ARM microprocessor 1 inside, highest frequency can reach 72MHz; The interface that jtag interface circuit 4 adopts ARM special, can on-line debugging; Power-switching circuit 5 have employed USB interface 6 and gets 5V power supply, and converts 5V to 3.3V by AMS1117 reduction voltage circuit, and the 3.3V after conversion gives microprocessor power supply after filtering is stable; LED running lamp module 10 is made up of side by side 8 LED, can realize the function of its circulation flowing water flicker; Independent keys 12 uses two touch-switchs, can control the flicker of the LED on development board.
It should be noted that described LCD display module 11 adopts resistive touch liquid crystal display, LCD display module 11 is connected by FSMC interface with ARM microprocessor 1, and LCD display module 11 comprises LCD driving chip U1,2 pin of LCD driving chip U1, 23 pin, 25 pin, 26 pin, 27 pin connect the PE1 pin of ARM microprocessor 1 respectively, PE0 pin, PE2 pin, PE3 pin, PE4 pin, 6 pin-14 pin of LCD driving chip U1 connect the PE15 pin-PE7 pin of ARM microprocessor 1 respectively, 3 pin-4 pin of LCD driving chip U1 connect the PD10 pin-PD8 pin of ARM microprocessor 1 respectively, and 15 pin-22 pin of LCD driving chip U1 connect the PD1 pin of ARM microprocessor 1 respectively, PD0 pin, PD15 pin, PD14 pin, PD4 pin, PD5 pin, PD11 pin, PD7 pin, 24 pin of LCD driving chip U1, 28 pin connect the PD13 pin of ARM microprocessor 1 respectively, PB1 pin, 29 pin of LCD driving chip U1 connect the first resistance R1 to 5V power end, and LCD driving chip U1 adopts driving chip ILI9341, can realize Chinese and English character, the function that the display of picture and single-point touch.
It should be noted that, described I2C communication interface 7 comprises storage chip U2,1 pin-4 pin of storage chip U2, the equal ground connection of 7 pin, 5 pin, 6 pin of storage chip U2, between 7 pin and 8 pin, be connected to the second resistance R2, the 3rd resistance R3, the first electric capacity C1 respectively, 5 pin of storage chip U2,6 pin connect PB7 pin, the PB6 pin of ARM microprocessor 1 respectively, described storage chip U2 adopts storage chip AT24C02, storage chip U2 is a 2K bit serial CMOS EEPROM, inner containing 256 octets, can read and write it.
It should be noted that, described SPI communication interface 8 comprises wireless transceiver U3,3 pin-8 pin of wireless transceiver U3 connect PE5 pin, PE6 pin, PA5 pin, PA7 pin, PA6 pin, the PC4 pin of ARM microprocessor 1 respectively, described wireless transceiver U3 adopts monolithic wireless transceiver chip NRF24L01, wireless transceiver U3 is operated in the ISM band of 2.4GHz-2.5GHz, and running parameter is arranged by SPI interface.
It should be noted that, described serial communication interface 9 adopts interface convertor U4, 1 pin of interface convertor U4, 5 pin connect the PA10 pin of ARM microprocessor 1 respectively, PA9 pin, 1 pin of interface convertor U4, 5 pin, 6 pin, 13 pin, 14 pin meet the 4th resistance R4 respectively, 5th resistance R5, 6th resistance R6, 7th resistance R7, 8th resistance R8 to 3.3V power end, crystal oscillator Y1 is connected between 27 pin of interface convertor U4 and 28 pin, 27 pin of interface convertor U4, 28 pin meet the second electric capacity C2 respectively, 3rd electric capacity C3 extremely holds, 16 pin of interface convertor U4, 15 pin meet the 9th resistance R9 respectively, tenth resistance R10 is to USB interface 6, described interface convertor U4 adopts RS232-USB interface convertor PL2303, realize the function that USB turns serial ports, enhance the convenience of use.
It should be noted that, described temperature measuring circuit 13 comprises temperature sensor U5,2 pin of temperature sensor U5 receive the PB0 pin of ARM microprocessor 1, the 11 resistance R11 is connected between 2 pin of temperature sensor U5 and 3 pin, temperature sensor U5 adopts temperature sensor DS18B20, temperature sensor U5 measuring tempeature scope is-55 DEG C to+125 DEG C, at-10 DEG C within the scope of 85 DEG C, precision is ± 0.5 DEG C, scene temperature directly with the digital form of " one-wire bus " transmission, substantially increases the anti-interference of system.
In addition, described infrared remote controller 14 comprises infrared receiver U6,1 pin of infrared receiver U6 connects the PA8 pin of ARM microprocessor 1, the 12 resistance R12 is connected between 1 pin of infrared receiver U6 and 3 pin, 3 pin of infrared receiver U6 connect the 13 resistance R13 to 3.3V power end, and infrared receiver U6 adopts integrated infrared receiver HS0038B.
This embodiment LCD display module 11 is connected with microprocessor by the FSMC bus interface of ARM, FSMC is that STM32 series adopts a kind of novel memory expansion technology, there is unique advantage in outside memory expansion, according to systematic difference needs, the expansion of dissimilar Large Copacity static memory can be carried out easily; That carry out that I2C communicates with ARM microprocessor 1 is EEPROM; adopt EEPROM can solve power-down data protection problem; the storage chip AT24C02 that this experimental development board of multi is selected; adopt I2C bus interface; I2C bus forms communication line by data line SDA and clock line SCL two lines; the device receiving bus both can send data; also data can be received; data on SDA line must keep stable at the high level of clock, and the high or low level state of data line only could change when the clock signal of SCL line is low level.
This embodiment SPI communication interface 8 is communicated with ARM microprocessor 1 by spi bus, SPI-Serial Peripheral Interface (SPI), it is a kind of high speed, full duplex, synchronous communication bus, and on the pin of chip, only take four lines, save the pin of chip, simultaneously for the layout of PCB saves space, provide convenience; The Principle of Communication of SPI is very simple, and it is with master-slave mode work, and this pattern has a main equipment and one or more from equipment usually, needs at least 4 lines, is respectively MOSI, MISO, IRQ, CSN; Wherein MOSI is the output of main frame, from the input of machine, MISO is the input of main frame, from the output of machine, IRQ is interrupt request pin, CSN is whether control chip is selected, when that is only having chip selection signal to be prespecified enable signal (noble potential or electronegative potential), just effective to the operation of this chip, this just allows on same bus, connect multiple SPI equipment becomes possibility, SPI is serial communication protocol, and that is in communication process, data are transmission of one one.
This embodiment serial communication interface 9 has selected interface convertor PL2303, the solution that a RS232 full duplex asynchronous serial communication device connects with USB functional interface facility can be provided, this device internal USB function control device, USB transceiver, oscillator and the UART with whole modem control signal, only need external several electric capacity just can realize the conversion of usb signal and RS232 signal, this device is as USB/RS232 bidirectional transducer, and one side receives usb data from main frame and is converted into RS232 information flow form and sends to peripheral hardware; Be converted to usb data form from RS232 peripheral hardware reception data on the other hand and send back main frame, these work are all completed automatically by device.
This embodiment adopts independently modular design, is convenient to the relation understanding software restraint; Simplicity of design, the R&D cycle is short, and cost is low, can batch making external member, meets the demand of Students ' Learning ARM.
More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. based on the experimental development board of multi of ARM, it is characterized in that, comprise ARM microprocessor (1), crystal oscillating circuit (2), reset circuit (3), jtag interface circuit (4), power-switching circuit (5), communication interface modules and input/output module, ARM microprocessor (1) respectively with crystal oscillating circuit (2), reset circuit (3), jtag interface circuit (4), power-switching circuit (5), communication interface modules is connected with input/output module, USB interface (6) connects power-switching circuit (5), described communication interface modules comprises I
2c communication interface (7), SPI communication interface (8) and serial communication interface (9), input/output module comprises LED running lamp module (10), LCD display module (11), Independent keys (12), temperature measuring circuit (13) and infrared remote controller (14), I
2c communication interface (7), SPI communication interface (8), serial communication interface (9), LED running lamp module (10), LCD display module (11), Independent keys (12), temperature measuring circuit (13), infrared remote controller (14) are all connected with ARM microprocessor (1), described ARM microprocessor (1) adopts microprocessor STM32F103VET6.
2. the experimental development board of multi based on ARM according to claim 1, it is characterized in that, described LCD display module (11) adopts resistive touch liquid crystal display, LCD display module (11) is connected by FSMC interface with ARM microprocessor (1), LCD display module (11) comprises LCD driving chip (U1), 2 pin of LCD driving chip (U1), 23 pin, 25 pin, 26 pin, 27 pin connect the PE1 pin of ARM microprocessor (1) respectively, PE0 pin, PE2 pin, PE3 pin, PE4 pin, 6 pin-14 pin of LCD driving chip (U1) connect the PE15 pin-PE7 pin of ARM microprocessor (1) respectively, 3 pin-5 pin of LCD driving chip (U1) connect the PD10 pin-PD8 pin of ARM microprocessor (1) respectively, and 15 pin-22 pin of LCD driving chip (U1) connect the PD1 pin of ARM microprocessor (1) respectively, PD0 pin, PD15 pin, PD14 pin, PD4 pin, PD5 pin, PD11 pin, PD7 pin, 24 pin of LCD driving chip (U1), 28 pin connect the PD13 pin of ARM microprocessor (1) respectively, PB1 pin, 29 pin of LCD driving chip (U1) connect the first resistance (R1) to 5V power end, and LCD driving chip (U1) adopts driving chip ILI9341.
3. the experimental development board of multi based on ARM according to claim 1, is characterized in that, described I
2c communication interface (7) comprises storage chip (U2), 1 pin-4 pin of storage chip (U2), the equal ground connection of 7 pin, 5 pin, 6 pin of storage chip (U2), between 7 pin and 8 pin, be connected to the second resistance (R2), the 3rd resistance (R3), the first electric capacity (C1) respectively, 5 pin of storage chip (U2), 6 pin connect PB7 pin, the PB6 pin of ARM microprocessor (1) respectively, and described storage chip (U2) adopts storage chip AT24C02.
4. the experimental development board of multi based on ARM according to claim 1, it is characterized in that, described SPI communication interface (8) comprises wireless transceiver (U3), 3 pin-8 pin of wireless transceiver (U3) connect PE5 pin, PE6 pin, PA5 pin, PA7 pin, PA6 pin, the PC4 pin of ARM microprocessor (1) respectively, and described wireless transceiver (U3) adopts monolithic wireless transceiver chip NRF24L01.
5. the experimental development board of multi based on ARM according to claim 1, it is characterized in that, described serial communication interface (9) adopts interface convertor (U4), 1 pin of interface convertor (U4), 5 pin connect the PA10 pin of ARM microprocessor (1) respectively, PA9 pin, 1 pin of interface convertor (U4), 5 pin, 6 pin, 13 pin, 14 pin connect the 4th resistance (R4) respectively, 5th resistance (R5), 6th resistance (R6), 7th resistance (R7), 8th resistance (R8) is to 3.3V power end, crystal oscillator (Y1) is connected between 27 pin of interface convertor (U4) and 28 pin, 27 pin of interface convertor (U4), 28 pin connect the second electric capacity (C2) respectively, 3rd electric capacity (C3) extremely is held, 16 pin of interface convertor (U4), 15 pin connect the 9th resistance (R9) respectively, tenth resistance (R10) is to USB interface (6), described interface convertor (U4) adopts RS232-USB interface convertor PL2303.
6. the experimental development board of multi based on ARM according to claim 1, it is characterized in that, described temperature measuring circuit (13) comprises temperature sensor (U5), 2 pin of temperature sensor (U5) receive the PB0 pin of ARM microprocessor (1), be connected to the 11 resistance (R11) between 2 pin of temperature sensor (U5) and 3 pin, temperature sensor (U5) adopts temperature sensor DS18B20.
7. the experimental development board of multi based on ARM according to claim 1, it is characterized in that, described infrared remote controller (14) comprises infrared receiver (U6), 1 pin of infrared receiver (U6) connects the PA8 pin of ARM microprocessor (1), the 12 resistance (R12) is connected between 1 pin of infrared receiver (U6) and 3 pin, 3 pin of infrared receiver (U6) connect the 13 resistance (R13) to 3.3V power end, and infrared receiver (U6) adopts integrated infrared receiver HS0038B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520188746.XU CN204596275U (en) | 2015-03-31 | 2015-03-31 | Based on the experimental development board of multi of ARM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520188746.XU CN204596275U (en) | 2015-03-31 | 2015-03-31 | Based on the experimental development board of multi of ARM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204596275U true CN204596275U (en) | 2015-08-26 |
Family
ID=53932405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520188746.XU Expired - Fee Related CN204596275U (en) | 2015-03-31 | 2015-03-31 | Based on the experimental development board of multi of ARM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204596275U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107067913A (en) * | 2017-05-12 | 2017-08-18 | 燕山大学 | STM32 Project teaching comprehensive experimental teaching platforms |
-
2015
- 2015-03-31 CN CN201520188746.XU patent/CN204596275U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107067913A (en) * | 2017-05-12 | 2017-08-18 | 燕山大学 | STM32 Project teaching comprehensive experimental teaching platforms |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204904716U (en) | Electron perpetual calendar based on singlechip | |
| CN203070010U (en) | Multifunctional board card used for flexible AC power transmission apparatus | |
| CN202771603U (en) | Electricity utilization information collector | |
| CN202257569U (en) | Embedded-type man-machine interaction device based on ARM (Advanced Reduced Instruction Set Computer Machine) core | |
| CN204596275U (en) | Based on the experimental development board of multi of ARM | |
| CN202362372U (en) | Intelligent electric energy meter | |
| CN207558328U (en) | A kind of TFT liquid crystal serial ports display | |
| CN202886397U (en) | Mining portable wind speed measuring device | |
| CN109885034A (en) | One kind being based on monolithic processor controlled EV Energy Consumption tester and system | |
| CN202219734U (en) | Embedded intelligent instrument for electric automobile | |
| CN205750914U (en) | Basketball Match control system based on Internet of Things | |
| CN201936523U (en) | Electronic simulative multi-purpose electric energy meter and meter reading training device | |
| CN203722863U (en) | Intelligent illumination system based on ANT wireless network | |
| CN202886924U (en) | Miniature PLC controller | |
| CN203706392U (en) | Wireless sensing communication platform based on STM32, SH79F32 and nRF905 chips | |
| CN203338025U (en) | Ethernet-based intelligent home system | |
| CN202855156U (en) | ARM experiment development board | |
| CN203519174U (en) | Remote temperature detection and alarm system | |
| CN202957984U (en) | Embedded type wireless network monitoring terminal | |
| CN206264613U (en) | A kind of impact printer dedicated control circuit | |
| CN101840248A (en) | Palm computer with wireless communication and data acquisition functions | |
| CN206773470U (en) | A kind of data concentrator | |
| CN202563319U (en) | Novel industrial data acquisition system | |
| CN201819704U (en) | Testing instrument for fridge energy efficiency experiment based on micropower wireless communication technology | |
| CN203192291U (en) | One-chip microcomputer principle experimental case |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150826 Termination date: 20160331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |