Water is a Drug

A detailed Summary of Water is a Drug


The function of our project is a light control system. The lights can be controlled at two different frequencies or speeds, and on two different patterns. There is a simple user interface consisting of two switches and two push button switches. The user can choose to run the lights slowly or quickly by flipping a switch. The user can also choose one of two different modes in which the lights will run by flipping another switch. The system uses 4 volts of electricity and therefore can be left running for a long time with the much power consumption. For the sake of simplicity all work project uses only two different color lights but more colors can be implemented. The idea is to use a small number of chips to produce a large output. Our project uses five D flip-flops as well as four XOR gates. With two 555 timers, the flip-flops can be used as counters at two different speeds. The output of each flip-flop is connected to four LED's that produces a running effect when turned on.

Our project is for decoration purposes. When power is provided the light control system begins to work on its own. From here the use


Using both combinational and sequential logic, we have put together a system of lights that rely upon the output of a 5-bit counter, as well as two 555 timers to provide a clock signal to the 5-bit counter. To provide two different outputs, or states for the 5-bit counter, we incorporated 4 XOR gates for a much different sequence. A switch provides the clock input for the 5-bit counter from two different clocks (provided by the 555 timers). The 5-bit counter is designed using asynchronous D flip-flops, the last of which is connected to a switch that will either provide direct information from the output of the final flip-flop to the first or send the output of the final flip-flop through a series of XOR gates to produce an entirely different output for the first flip-flop than being directly connected. A normally high switch is connected to both the reset and the set of all the flip-flops so the user can turn on all the lights, or clear them if an error in counting occurs.

can select the speed at which he or she wants the lights to operate as well as select the pattern of choice. If at any time they user wishes to che

Some common words found in the essay are:
Using PATTERN, , SPEED CONTROL, 5-bit counter, xor gates, 555 timers, pattern choice user, light control system, output final flip-flop, select pattern choice, switch user, output final, final flip-flop, flipping switch, user choose, lights using, output flip-flop,

Approximate Word count = 760
Approximate Pages = 3 (250 words per page double spaced)

Category: Science

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