Introduction : This project of fluid level indicator is a circuit which can be used for the indication of any fluid or liquid up to the desires levels .This fluid level indicator will help us to save our liquid from being wasted .We can use different LEDs and Buzzer at certain levels for indication.
|Resistors||100K x3 , 1K x5 , 10K x 3|
|Transistors||CS9014 x 3|
|AND GATE IC||7400 x 6|
|LED||7 Segment Display|
B terminals of the transistors are used as electronics while E, 1, 2 and F are symbols representing the following four fluid level in a tank and are displayed on the7-segment.
The truth table for inputs A, B, C and outputs a, b, c, d. e, f and g is shown below.
From the truth table, we can see that a=e=g, c=a, b=f,
There are actually eight output states, as the Kanaugh map showed below.
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