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AVR single-chip developed by a very low threshold, as long as the computer will be able to study the development of AVR microcontroller. Only a single-chip ISP download beginners line, the editing, debugging of software programs through a direct line into the AVR microcontroller, which can develop AVR Series Single-chip package of a variety of devices. AVR single-chip Microcomputer in the industry known as "front-line struggle to seize state power."
標簽：
single-chip
developed
threshold
the
上傳時間：
2013-12-09
上傳用戶：invtnewer
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針對嵌入式產(chǎn)品程序更新問題,提出了一種基于IAP技術(shù)的STM32單片機在線固件升級方案,設(shè)計了STM32單片機最小系統(tǒng)硬件電路和USB轉(zhuǎn)串口通信電路,并給出了Bootloader程序、APP程序、PC上機程序的實現(xiàn)流程.實驗結(jié)果表明,該方案具有簡單實用、穩(wěn)定性高、維護成本低和設(shè)備使用效率高的特點,適用于嵌入式產(chǎn)品升級.For the problem of updating embedded products program,an online firmware upgrade scheme of STM32 single chip Microcomputer based on IAP technology is proposed.This scheme not only elaborates the principle of IAP technology in detail but also provides the design of the minimum system hardware circuit of STM32 MCU,the design of USB for serial communication circuit,and the implementation flow of Bootloader program,APP program and PC program.The experiment results show that the scheme is simple,practical and highly stable.In addition,it can be used to actual embedded product upgrading,significantly reducing maintenance costs and improving the efficiency of equipment.
標簽：
iap
stm32
單片機
上傳時間：
2022-03-25
上傳用戶：
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以倉庫智能改造為背景,主要介紹單片機和上位機之間通信網(wǎng)絡(luò)和通信協(xié)議的選擇,MODBUS協(xié)議通信指令和功能碼使用,重點闡述了基于RS-485總線的MODBUS通信協(xié)議在上位機和單片機之間的串行通信,實現(xiàn)上位機對單片機設(shè)備的遠程控制和信息采集的功能。Based on the intelligent warehouse transformation as the background,mainly introduces between MCU and PC communication network and the choice of communication protocol,instruction and the function code using the MODBUS protocol communication,expounds the MODBUS communication protocol based on RS-485 bus serial communication between PC and single chip Microcomputer,PC remote control of single chip computer equipment and the function of information collection.
標簽：
RS-485總線
modbus
單片機
上傳時間：
2022-03-26
上傳用戶：
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以STC12C5A60S2單片機為控制核心,采用2.4G(JF24D)無線遙控模塊進行無線發(fā)射與接收,設(shè)計了一種雙電機遙控船模控制系統(tǒng).該系統(tǒng)通過切換檔桿實現(xiàn)前進后退,方向盤左右轉(zhuǎn)動、暫停按鈕等控制直流電機的正轉(zhuǎn)、反轉(zhuǎn)、暫停,使得電機驅(qū)動的遙控船模實現(xiàn)前進后退、左右轉(zhuǎn)向、暫停等功能,有效解決了驅(qū)動功率小和船模之間相互干擾等問題,可廣泛應(yīng)用于遙控船模領(lǐng)域.Using STC12C5A60S2 single-chip Microcomputer as the controller and 2.4 G(JF24D)wireless remote control module for wireless transmission and reception, a dual-motor remote control ship model control system is designed. The system realizes forward and backward by switching the gear lever. The steering wheel rotates left and right and the pause button controls the forward, reverse and pause of the dc motor. The remote controller of ship model driven by the motor realizes forward and backward, left and right steering, pause and other functions. The ship model control system can effectively solve the problems of small driving power and mutual interference between ship models, and can be widely used in the field of remote controller of ship model.
標簽：
電機
遙控船模
控制系統(tǒng)
上傳時間：
2022-03-27
上傳用戶：
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在半導(dǎo)體制冷技術(shù)的工作性能及其優(yōu)缺點研究的基礎(chǔ)上,設(shè)計了以單片機為核心控制元件,以TEC1-12706為執(zhí)行元件的半導(dǎo)體制冷溫度控制系統(tǒng)。采用高精度分段式PID控制算法配合PWM輸出控制的方法實現(xiàn)溫度控制;選擇數(shù)字傳感器DS18B20為溫度檢測元件,還包含1602液晶顯示模塊、按鍵調(diào)整輸入模塊和H橋驅(qū)動模塊等。實際測試表明,該系統(tǒng)結(jié)構(gòu)簡單易行,操作方便,工作性能優(yōu)良,同時針對該系統(tǒng)專門設(shè)計的溫控算法,使半導(dǎo)體制冷器能更好地適應(yīng)不同工況而充分發(fā)揮其制冷制熱工作特性。Based on the study of the performance and advantages and disadvantages of thermoelectric cooler(TEC)technology,a thermoelectric cooling temperature control system with single-chip Microcomputer as the core control element and TEC1-12706 as the executive element was designed. High precision piecewise PID control algorithm combined with PWM output control method is adopted to realize temperature control. The digital sensor DS18B20 is selected as the temperature detection element. It also includes 1602 LCD module,key adjustment input module and H bridge drive module. The actual test shows that the system has simple structure,convenient operation and excellent performance. Meanwhile,the temperature control algorithm specially designed for the system can make the semiconductor cooler better adapt to different working conditions and give full play to its refrigeration and heating characteristics.
標簽：
半導(dǎo)體
溫度控制系統(tǒng)
上傳時間：
2022-03-27
上傳用戶：
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隨著科技發(fā)展及工業(yè)4.0 進程推進,機械臂應(yīng)用范圍越來越廣,并演化出各種各樣的機械臂,如碼垛機械臂、焊接機械臂、裝配機械臂以及手術(shù)機械臂等。現(xiàn)利用solidworks 進行三維建模,設(shè)計制作一款基于stm32f103c8t6 單片機的主從式桌面級機械臂,該機械臂包括一個主動機械臂和一個從動機械臂,采用藍牙傳輸信號方式進行同步運動,并且詳細介紹了該機械臂材料選擇、結(jié)構(gòu)設(shè)計、工作原理、組成部分和設(shè)計特點。With the development of science and technology and the advancement of Industry 4.0, the application range of the mechanical arm has become wider and wider, and various types of mechanical arms, such as palletizing robot arms, welding robot arms, assembly robot arms, and surgical robot arms, have been developed. Now using solidworks for 3D modeling, design and manufacture a master-slave desktop-level robot arm based on stm32f103c8t6 single-chip Microcomputer. The robot arm includes an active robot arm and a slave robot arm, which uses Bluetooth to transmit signals for synchronous motion. The material selection, structural design, working principle, components and design features of the manipulator are introduced.
標簽：
stm32f103c8t6
單片機
上傳時間：
2022-03-27
上傳用戶：
-
本系統(tǒng)基于STM32單片機設(shè)計的非接觸式電流檢測控制系統(tǒng),通過OPA548片將所給任意信號放大,由100Ω電阻和INA128芯片進行電流電壓轉(zhuǎn)換放大后,利用STM32單片機對獲取的電壓信號以0.488μs頻率采樣,利用STM32單片機的FFT庫,獲得信號的諧波信息。測量電流信號精準,該設(shè)計可廣泛應(yīng)用在以STM32單片機為核心控制器件的新型儀表中,性能精準且抗干擾能力強。This system is a non-contact current detection and control system based on STM32 single chip Microcomputer. It amplifiesany signal through OPA548 chip, converts and amplifies the current and voltage by 100 Ω resistance and INA128 chip. The obtainedvoltage signal is sampled at the frequency of 0.488 μs by STM 32 single chip Microcomputer, and the harmonic information of the signalis obtained by the FFT library of STM 32 single chip Microcomputer. The measurement of current signal is accurate. This design can bewidely used in a new instrument with STM 32 single chip Microcomputer as its core control device, with accurate performance and stronganti-interference capability.
標簽：
stm32
單片機
上傳時間：
2022-03-27
上傳用戶：
-
入室搶劫事件屢見不鮮,針對此現(xiàn)象進行分析不難發(fā)現(xiàn),造成失竊事件的極大原因是人們慵懶和意識差等不良性格造成習(xí)慣性不鎖門.本文以STC89C52單片機為基礎(chǔ),設(shè)計了一種基于人體紅外傳感器的自動關(guān)門鎖門裝置,來解決此類問題.The incidents of burglary are so common. It is not difficult to find that the main reason for the burglary is the habit of unlocking of doors caused by people's laziness and poor consciousness. Based on the single chip Microcomputer of STC89C52, a device used with infrared sensor of human body is introduced in this paper, which can achieve the effect of automatic closing and locking doors.
標簽：
單片機
人體紅外線傳感器
上傳時間：
2022-03-27
上傳用戶：canderile
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數(shù)字示波器功能強大,使用方便,但是價格相對昂貴。本文以Ti的MSP430F5529為主控器,以Altera公司的EP2C5T144C8 FPGA器件為邏輯控制部件設(shè)計數(shù)字示波器。模擬信號經(jīng)程控放大、整形電路后形成方波信號送至FPGA測頻,根據(jù)頻率值選擇采用片上及片外高速AD分段采樣。FPGA控制片外AD采樣并將數(shù)據(jù)輸入到FIFO模塊中緩存,由單片機進行頻譜分析。測試表明:簡易示波器可以實現(xiàn)自動選檔、多采樣率采樣、高精度測頻及頻譜分析等功能。Digital oscilloscope is powerful and easy to use, but also expensive. The research group designed a low-cost digital oscilloscope, the chip of MSP430F5529 of TI is chosen as the main controller and the device of EP2C5T144C8 of Altera company is used as the logic control unit. Analog signal enter the programmable amplifier circuit, shaping circuit and other pre-processing circuit. The shaped rectangular wave signal is sent to FPGA for measure the frequency. According to the frequency value to select AD on-chip or off-chip high-speed AD for sampling. FPGA controls the off-chip AD sampling and buffers AD data by FIFO module. The single chip Microcomputer receives the data, and do FFT for spectrum analysis. The test shows that the simple oscilloscope can realize automatic gain selection, sampling at different sampling rates, high precision frequency measurement and spectrum analysis.
標簽：
msp430
單片機
fpga
數(shù)字示波器
上傳時間：
2022-03-27
上傳用戶：
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說明： STM8S單片機驅(qū)動CC1101 433無線模塊 實現(xiàn)發(fā)送數(shù)據(jù)和接收數(shù)據(jù)。(STM8S single-chip Microcomputer drives CC1101 433 wireless module to transmit data and receive data)
標簽：
stm8s
單片機
驅(qū)動
上傳時間：
2022-05-16
上傳用戶：
