PROPELLER CLOCK OBJECTIVE :- In this project‚ our aim is to use PIC or 8051 microcontroller to control a row of LEDs to function it as a clock. ABSTRACT :- The Propeller Clock is an electronic device which has a series of LEDs on board that rotate with the help of a motor to give an illusion of a watching a clock ( Digital or Analogue ). This requires a DC motor which rotates the PCB connected to it with sufficient speed so as to create the illusion. The LEDs are connected to a microcontroller
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"Propeller Clock" Mechanically Scanned LED Clock Seven light emitting diodes spin‚ giving the illusion of numbers in the air An Overview: Top View Side View How this clock works: A motor spins the "propeller"‚ and a small microprocessor keeps track of time and changes the pattern on seven LEDs with exact timing to simulate a 7 by 30 array of LEDs. It is an illusion‚ but it works nicely. To build this clock‚ few things are needed‚ including: 1. Skill with motors and mechanical
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The Life Cycle and the Social Clock Early models of adult development sometimes assumed that marriage is a requisite life task for full adulthood. Stage models posited a linear set of stages that people progressed through over the course of a lifetime. The concept of the social clock describes societal expectations for the time at which people are expected to marry‚ have children‚ and accomplish other life tasks. What are the implications of these expectations for the ways in which people who are
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Wireless communication‚ as a result‚ proves to be a hot area for telecom suppliers. Accordingly‚ the demand for handset products‚ from businesses to consumers continues to rise. The question is how handset manufacturers have fit their global marketing strategies to win widespread acceptance as competition intensifies. Thus‚ this analysis highlights Samsung’s recent success as a very typical case in point to the above question. In more focus‚ the purpose of this analysis is to examine: - Samsung handsets’
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China‚ Southeast Asia‚ Southwest Asia‚ Central and South America‚ CIS‚ the Middle East and Africa. The Samsung Electronics Co. invited us as a consultant to design strategy for its company. Our team will be responsible for making a report on the company that will contain a detailed analysis of the company and then formulating strategy for Samsung. The case was presented in front of us that describe the current situation of the company. We will try to fully analyze the situation and prepare a detailed
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Discuss the difference between individual and institutional discrimination and give an example of each. • Individual discrimination involves negative attitudes and beliefs that people hold about specific race/gender group/ethnic etc. The assumption that a certain race‚ gender group is intellectually inferior or incapable of certain achievements. (DeVito‚ 2013) I went on a vacation in Africa with white friends and I realized that every place we went I was treated different by those that offered
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Introduction Genetics is the science that explains the variation and transmission of inherited characteristics from parents to offspring. The basic laws of heredity became popular to science in 1865‚ with the publication of the works of Gregor Mendel‚ the father of genetics. He observed that by breeding pairs of different varieties of peas‚ the offspring resembled one of the parents. This inspired him to continue his work that resulted to more experiments on plants. Before starting this exercise
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times of day? Do you ever notice lower energy periods where you would kill for the time to take a nap even though you haven’t been doing anything? Our daily up and down pattern is a good example of our body’s natural rhythms. But now that body clock may actually help
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Analysis “The Ormolu Clock” is a short story written by Muriel Spark‚ who is considered to be one of the 50 greatest British writers since 1945. Dame Muriel is a poet‚ writer of fiction and literary criticism‚ and biographer – went on to win most of the literary awards going‚ was never out of print‚ and was at the top of her profession‚ internationally‚ for more than half a century. The story under discussion begins with the description of two hotels standing side by side and separated by a
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Chemical Kinetics: The Iodine-Clock Reaction: S2O82−(aq) + 2 I−(aq) → I2(aq) + 2 SO42−(aq) To measure the rate of this reaction we must measure the rate of concentration change of one of the reactants or products. Here‚ it is convenient to carry out a clock reaction involving the product I2. To do this‚ you will include (to the reacting S2O82− and I−) i) a small (but accurately known) amount of sodium thiosulfate‚ Na2S2O3‚ and ii) some starch indicator. The added Na2S2O3 does not interfere with
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