Enabled Automated Parking Access Control Systems”‚ Retrieved May 5th‚ 2009 http://parking.gaorfid.com/ [2] Banks‚ J.‚ Hanny‚ D.‚ Pachano‚ M. A.‚ and Thompson‚ L. G. RFID Applied. John Wiley and Sons‚ 2007. [3] Mazidi‚ M. A.‚ and Mazidi‚ J. G.‚ The 8051 Microcontroller and Embedded Systems. Pearson Education‚ 2006 [4] Silicon Laboratories. (2008). “Embedded Ethernet Development Kit ’s User Guide”. Retrieved October 15‚ 2008 https://www.silabs.com/Support%20Documents/TechnicalDocs/Ethernet-
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IC 7805- The input voltage must always be higher than the output voltage by some minimum amount (typically 1.5 to 2 volts) . 7805 is a linear voltage regulator‚ so it is not very efficient and it has drop out voltage problem. As they are based on a linear regulator design‚ the input current required is always the same as the output current. As the input voltage must always be higher than the output voltage‚ this means that the total power (voltage multiplied by current) going into the 78xx will be
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WIRELESS ACCIDENT INTIMATING SYSTEM USING RF The main aim of this project is to implement a system to identify accident by using wireless communication technology RF. The purpose of the project is to get information about the crashing of particular vehicle which passing through a remote area‚ and using sensor and transmitting a message to the concerned receiver section by using RF communication. In present days Electronic communication takes an important role. In this project we are sending
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diagram…………………………………………………....9 3.2 Working………………………………………………………….10 3.3 Power supply…………………………………………………….11 3.4 Regulator……………….………………………………………..13 3.5 Power supply waveforms…………………………………..........15 4. SYSTEM SPECIFICATION ……………………………16 4.1 8051 Microcontroller…………………………………………16 4.2 LCD 16*2…………………………………………………….28 4.3 Stepper motor………………………………………………...32 4.4 ULN 2003…………………………………………………….34 4.5 RF transmitter and receiver…………………………………..35 4.6 IR sensor module……………………………………………
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References: Short‚ Kenneth L.. Microprocessors and Programmed Logic. Prentice-Hall‚ Inc. (New Jersey: Englewood Cliffs‚ 1987). Noyce‚ Robert N. and Marcian E. Hoff‚ Jnr. c1981. A History of Microprocessor Development at Intel. IEEE Micro‚ pg. 8–22. Krutz‚ Ronald L. Microprocessors and Logic Design. John Wiley & Sons. (New York: NY‚ 1980) Heath‚ Steve. Microprocessor Architectures and Systems: RISC‚ CISC and DSP. (Newnes: UK‚ 1991) Heffer‚ D.E.‚ King‚ G.A.‚ and Keith‚ D
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Course Group & Folder EE2323:Microprocessors & Computer Architecture Spring 2013 • Course Yahoo Group – http://groups.yahoo.com/group/maju_ee2323/ • Course Folder – \\dataserver\jinnah$\M Tahir\EE2323 Microprocessor Lecture 2 February 22‚ 2013 2/23/2013 2 Microprocessor based System • A Microprocessor-based systems consists of central processing unit (CPU)‚ memories‚ I/O Devices and other peripherals. • CPU takes input from I/O devices such as keyboards CPU processes data in internal
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received data is then sent to the receiver PC serially. The RS-232 cable (DB-9 connector in this case) is used to coordinate the serial communication between the computer and the microcontroller. The RS232 standard is not TTL compatible‚ but the 8051 has two pins‚ that are used specifically for transferring (P3.1) and receiving data (P3.0) serially which are TTL compatible; therefore it requires a line driver such as the MAX232 chip to convert RS232 voltage levels to TTL levels‚ and vice versa
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Multiuser SMS Based Wireless Electronic Notice Board Abstract— This is the model for displaying notices in colleges on electronic notice board by sending messages in form of SMS through mobile; it is a wireless transmission system which has very less errors and maintenance. The hardware board contains microcontroller AT89c52 at the heart of the system. The microcontroller is interfaced with GSM Modem via MAX232 level convertor. It is used to convert RS232 voltage levels to TTL voltage levels and
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1.INTRODUCTION EMBEDDED SYSTEMS Embedded systems are designed to do some specific task‚ rather than be a general-purpose computer for multiple tasks. Some also have real time performance constraints that must be met‚ for reason such as safety and usability; others may have low or no performance requirements‚ allowing the system hardware to be simplified to reduce costs. An embedded system is not always a separate block - very often it is physically
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References: 1. Mykepredko‚Programming and Customizing the 8051-Microcontroller‚Tata Mcgraw-Hill‚1999 2. Ajay.v.deshmukh‚Microcontroller [theory and application]‚ Tata Mcgraw-Hill‚2005 3. www.8052.com 4. www.howstuffworks.com 5. www.answers.com 6. www.google.com 7. www.efy.com 8. www.datasheetcatalog.com
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