water level indicator [autosaved]
TRANSCRIPT
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WATER LEVEL INDICATOR USING 7 SEMEGMENTS
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GROUP MEMBER Muhamamd Bilal
Mujahid Riaz Hamid Mukhtaar
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CONTENTS Background Introduction Components Components
detail Main circuit Empty circuit Partially fill circuit Completely fill
circuit Buzzer circuit
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BACKGROUNDMost water level indicators for water tanks are based upon the number of LEDs that glow to indicate the corresponding level of water in the container. Here we present a digital version of the water level indicator. It uses a 7-segment display to show the water level in alphabetical form that is E ,P & C.
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INTRODUCTION The water level indicator is used to measure
the level of water present in the tank. This circuit not only indicates the amount of water present in overhead tank but it also gives an alarm when the tank is full.
Water level indicator gives you an indication on 7 segment display by displaying E, P and C for empty, partially fill and completely fill, respectively.
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COMPONENTS Resistors LED’s Jumper wires 5V Battery IC 7404 IC 7408 Buzzer 7 Segement common Cathode
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COMPONENTS DETAIL
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IC 7404
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IC -7408
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7-SEGMENT DISPLAYTypes of 7 segmentCommon cathodeCommon anode
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COMMON CATHODE & COMMON ANODE
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WATER LEVEL INDICATOR CIRCUIT
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WATER LEVEL INDICATOR CIRCUIT
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EMPTY CIRCUIT
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EMPTY CIRCUIT
TIME 5 6EMPTY 0 1
TIME 9 8EMPTY 0 1
TIME N3 N4
8
EMPTY 1 1 1
maximum voltage drop
ON
IDEAL BEHAVIOUR
PRACTICAL BEHAVIOUR
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PARTIALLY FILL CIRCUIT
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PARTIALLY
maximum voltage drop
OFF
ON
TIME 9 8EMPTY 1 0
TIME 3 4PARTIALLY
0 1TIME
N3 N4
8
PARTIALLY
1 1 1
TIME 11
10
PARTIALLY
0 1
TIME 9 10 8EMPTY 0 1 0
IDEAL BEHAVIOUR
PRACTICAL BEHAVIOUR
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COMPLETELY FILL CIRCUIT
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COMPLETE
maximum voltage drop
TIME 3 4PARTIALLY
0 1
TIME 1
2
COMPLTELY
0 1
TIME N1
N2
3
COMPLTELY
1 1 1
TIME 11 10COMPLTELY
1 0
TIME N5
N2
8
PARTIALLY
0 1 0
Ideal behavior Practical behavior
1.6V
1.6V
1.6V
0V
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BUZZER CIRCUIT
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BUZZER
TIME 9 8EMPTY 0 1
Maximum voltage drop
onon
IDEAL BEHAVIOURPRACTICAL BEHAVIOUR
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CONCLUSIONWater is one of the most important element in our life. ALLAH and his Prophet(PBUH) has great blessings for this world. We have to save each and every drop of water. This is one of our effort to save water over flowing from the tank of your sweet house. Overflowing of water can damage the walls of the building but not the wall’s ice cream. You can enjoy its flavours dipped in water…
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ANY QUESTION?
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THANK YOU…