The requirements of our assignment are listed below: • resistors: 470 × 3‚ 22k‚ 100k • 555 timer IC‚ such as NE555 • capacitors: 0.1μF‚ 1μF 16V radial‚ 10μF 16V radial • 4017 counter IC • diodes: 1N4148 × 6 • LEDs: red‚ amber (or yellow)‚ green • on/off switch • 1M preset‚ horizontal • battery clip for 9V PP3 • stripboard: 20 rows × 21 holes • Transistors: 2n3904 This project operates red‚ yellow and green in the correct sequence
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SMS Based Wireless Electronic Notice Board using GSM/CDMA/3G Mobile Phone ABSTRACT Notice Board is primary thing in any institution / organization or public utility places like bus stations‚ railway stations and parks. But sticking various notices day-to-day is a difficult process. A separate person is required to take care of this notices display. This project deals about an advanced hi-tech wireless notice board. The project is built around the ATMEGA8L micro controller from Atmel. This
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Lecture Notes for Analog Electronics Raymond E. Frey Physics Department University of Oregon Eugene‚ OR 97403‚ USA rayfrey@cosmic.uoregon.edu December‚ 1999 Class Notes 1 1 Basic Principles In electromagnetism‚ voltage is a unit of either electrical potential or EMF. In electronics‚ including the text‚ the term “voltage” refers to the physical quantity of either potential or EMF. Note that we will use SI units‚ as does the text. As usual‚ the sign convention for current I
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Four kinds of artificial light sources for photography Light‚ is the main ingredient in a photograph. There are of course other ingredients: time‚ composition‚ subject matter‚ emotion and your unique style‚ but light is the thing that makes photography work. Light is the thing that early inventors had to hold or fix‚ in order to make a photograph stick around. We call nature’s light‚ natural or available. Think of sunlight or moonlight. There are four common types of artificial light sources
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IEEE Report on Advanced Sensors EC Department‚ GTU Gaurav Maniar‚ Karan Raithatha gaurav019@facebook.com karan.raithatha@gmail.com DIET‚ INDIA Abstract – This report explains different commonly used six advanced autonomous sensors. It also describes their working‚ application and uses. I. INTRODUCTION Simple stand alone electronic circuits can be made to repeatedly flash a light or play a musical note‚ but in order for an electronic circuit or system to perform any useful task or function
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Optical Computing Jainam Shah Kalol Institute Of Technology‚ Kalol‚ Gujarat‚ India. jainam_8888@yahoo.co.in Abstract—Optics has been used in computing for a number of years but the main emphasis has been and continues to be to link portions of computers‚ for communications‚ or more intrinsically in devices that have some optical application or component (optical pattern recognition‚ etc). Optical digital computers are still some years away‚ however a number of devices that can ultimately lead to
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Department of Electrical and Computer Engineering ELEC 456 Communications Jerry Johnson Dr. Bernard Harris December 12th‚ 2010 MATLAB HAND-IN #9 Simulation of the Noise Performance of a FM Communication System Problem 6.17 In this problem‚ we will do this problem using the discriminator developed in problems 4.26‚ and 4.28 to construct the Matlab simulation system. Matlab code for Problem 6.17 %--------------------------------------------------------------- % Problem 6
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Unit 9. Exercise 1. Light Sources and Components – Definitions 1. Forward Biased LED – Semiconductor diode with a positive voltage applied to the p-region and a negative voltage to the n-region. 2. Incoherent Light – Light in which the electric and magnetic fields of photons are completely random in orientation. Incoherent light is typically emitted from light bulbs and LEDs. 3. Laser – Acronym for light amplification by stimulated emission of radiation. The laser produces a coherent source
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BOOK REVIEW IN COMMUNICATIONS CHAPTER 2 # Electronic Communications System By Wayne Tomasi SIGNAL ANALYSIS AND MIXING DEFINITIONS TERMS 1) Electrical signals of which amplitude changes continuously with respect to time with no breaks or discontinuities. Analog Signals 2) Electrical signals that are described as discrete; their amplitude maintains constant level for a prescribed period of time and then it changes to another level with respect to time with no breaks
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Gd2O3 nanopowders doped with different concentrations of Er3+ and Yb3+ were synthesized using the combustion method. The starting reagents‚ Gd(NO3)3 6H2O‚ Er(NO3)3 5H2O‚ Yb(NO3)3 xH2O and NH2CH2COOH (glycine)‚ which was used as a fuel in reaction‚ of an analytical grade were purchased from Sigma Aldrich and Alfa Aesar. The ratio of glycine to nitrate was kept as 0.56 [31‚ 32]. The appropriate amounts of the starting reagents were dissolved in a minimum amount of deionized water. The solution was
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