基于單片機160128液晶顯示當前壓力,內(nèi)附有Proteus仿真。
上傳時間: 2013-11-23
上傳用戶:wang0123456789
文中將嵌入式控制技術(shù)與網(wǎng)絡控制技術(shù)相結(jié)合,實現(xiàn)了基于單片機通過因特網(wǎng)的控制實現(xiàn)溫控系統(tǒng)的設計,文中所采用的是MSP430F149單片機作為控制核心,MSP430F149微控制器控制以太網(wǎng)控制器CS8900A實現(xiàn)本地局域網(wǎng)的功能,通過TCP協(xié)議提供與因特網(wǎng)進行連接,可以實現(xiàn)對溫箱的溫度進行實時有效地控制。系統(tǒng)體積小巧,具備溫度采集和遠程控制功能和良好的可擴展性。
標簽: 單片機 網(wǎng)絡 控制實現(xiàn) 溫控系統(tǒng)
上傳時間: 2014-01-17
上傳用戶:GHF
基于MSP430的模擬SPI串口通信的實現(xiàn)
上傳時間: 2013-11-23
上傳用戶:wfymay
為了解決無法遠離計算機多媒體設備進行操作的現(xiàn)象,本文提出一種基于STC89C51單片機控制的智能化多媒體電腦遙控裝置的設計。在設計中結(jié)合紅外遙控器、紅外接收電路、串口轉(zhuǎn)USB模塊,有效地克服了其不足問題。結(jié)果表明,該裝置能夠自動識別遙控信號并解碼,可以智能學習自定義按鍵功能,利用身邊任意一款遙控器結(jié)合本裝置就可以脫離計算機有線的束縛,使用靈活,操作簡便,性價比極高,可廣泛應用于教室、會議室、家庭、娛樂等場合。
上傳時間: 2013-10-26
上傳用戶:王楚楚
提出一種基于凌陽單片機的步進電機加減速的控制方法。采用凌陽科技推出的16位結(jié)構(gòu)工控單片機SPMC75F2413A為控制器,由Allegro公司生產(chǎn)的兩相步進電機專用驅(qū)動器件SLA7042M構(gòu)成步進電機的驅(qū)動電路,在傳統(tǒng)的3段直線加減速控制算法基礎上增加至7段S形曲線加減速過程,控制步進電機的啟動和停止。實驗結(jié)果表明,該控制方法克服了直線加減速中不連續(xù)、易造成系統(tǒng)沖擊的問題,整個系統(tǒng)實現(xiàn)柔性控制,電機啟動、停止連續(xù)性能提高30%。 Abstract: The method of controlled stepping motor is referred based on SPMC75F2413A MCU, which adopts the 16 knots SPMC75F2413A MCU as the controller. The special-purpose actuation chip SLA7042M of two stepping motor produced by Allegro Corporation constituted to actuation electric circuit. The purpose of increasing to seven section of S shape curve based on the traditional three sections of straight line is to control the start and stop process of stepping motor. The experimental results show that the control method solves easy to pull-out and overshot problems. The overall system realizes flexible control, and the performance of motor start or stop continuity is increased 30%
上傳時間: 2013-12-08
上傳用戶:jiangfire
介紹了基于單片機C8051F020的通用串口適配器的設計與實現(xiàn)方法,即由單片機控制的智能化一對多口收發(fā)信號轉(zhuǎn)換器。通過采用C51對單片機進行編程,控制與RS-232(標準RS-232電平)、RS232(TTL電平)、RS-422接口的數(shù)據(jù)通信;采用C++ Builder作為開發(fā)平臺,通過RS-232接口實現(xiàn)上位機對適配器各個通信端口的控制。 Abstract: Design and realization of a universal serial port adapter based on the MCU C8051F020 are introduced.The adapter is an intelligent one-to-more receiving and transmitting signal converter controlled by the MCU. By programming the MCU with the language C51,MCU control data communication between the MCU and RS-232(RS-232 level),RS-232(TTL level),RS-422 port; Using C++ Builder as the development plane, by one RS232 port, the upper PC can control each of the communication port of the adapter.
上傳時間: 2013-11-19
上傳用戶:hebanlian
介紹了電力操作電源與智能電池巡檢系統(tǒng)的特點,給出了一種基于超低功耗單片機MSP430 F149針對中小型變電站自動化運行的專用設備的基本設計原理及實現(xiàn)方法,最后給出了詳細硬件構(gòu)成和軟件實現(xiàn)。該系統(tǒng)能滿足中小型變電站安全、可靠、自動運行的要求,并通過與上位機的串行通信實現(xiàn)變電站的遠程管理和控制。 Abstract: The characters of the intelligent battery data logging system of the electric operation power are introduced.The basic design principle and the implemented methods of the special equipment which only designed for the middle or small transformer substation based on MSP430F149 are prescribed. Finally, the hardware block diagram and the software flow chart are also given. The function that the system finally needs to realize can basically meet with the middle or small transformer substation’s satisfy, reliably,and automatic running.And it can also realize the transformer substation long-distance management and control by serial communicating with the host computer.
上傳時間: 2013-11-25
上傳用戶:黃華強
TI DSP的發(fā)展同集成電路的發(fā)展一樣,新的DSP都是3.3V的,但目前還有許多外圍電路是5V的,因此在DSP系統(tǒng)中,經(jīng)常有5V和3.3V的DSP混接問題。在這些系統(tǒng)中,應注意: 1)DSP輸出給5V的電路(如D/A),無需加任何緩沖電路,可以直接連接。 2)DSP輸入5V的信號(如A/D),由于輸入信號的電壓>4V,超過了DSP的電源電壓,DSP的外部信號沒有保護電路,需要加緩沖,如74LVC245等,將5V信號變換成3.3V的信號。 3)仿真器的JTAG口的信號也必須為3.3V,否則有可能損壞DSP。
上傳時間: 2013-10-16
上傳用戶:gxy670166755
本文介紹一種實現(xiàn)TMS320F240 DSP與C51單片機串行通訊的方法。詳細說明了TMS320F240 DSP與C51單片機的硬件構(gòu)成和軟件設置等問題。
上傳時間: 2013-11-24
上傳用戶:1234567890qqq
基于LabVIEW和單片機的空調(diào)溫度場測量系統(tǒng)的研究:室內(nèi)溫度是空調(diào)系統(tǒng)舒適性的重要指標,對其及時、準確地測量顯得非常重要。介紹單片機AT89C51 和數(shù)字式、單總線型溫度傳感器DS18B20 組成矩形測量網(wǎng)絡采集空調(diào)室內(nèi)40 點溫度,LabVIEW作為開發(fā)平臺,二者之間通過串口實現(xiàn)數(shù)據(jù)通信,利用LabVIEW強大的數(shù)據(jù)處理和顯示功能對采集的空調(diào)溫度場數(shù)據(jù)進行實時處理、分析和顯示,詳細介紹了系統(tǒng)的硬件結(jié)構(gòu)和軟件模塊的設計方案。關鍵詞:單片機;DS18B20 ;LabVIEW;串行通信 Abstract : Temperature is a very important criterion of air condition system′s comfort , so it is very significant to measure it accurately and real timely. This paper int roduces a data acquisition system of measuring 40 point s temperature for air condition room based on single wire digital sensor DS18B20 and microcont roller AT89C51 which are composed of rectangle measuring meshwork. The data communication between LabVIEW and microcont roller is executed via serial port ,and the temperature field data of air condition room are processed analyzed and displayed on LabVIEW. The hardware and software modules are also given in detail.Keywords : single chip ;DS18B20 ;LabVIEW; serial communication
上傳時間: 2014-05-05
上傳用戶:KSLYZ