Published March 23, 2020

Water Level Indicator-Mini Project

This simple transistor based circuit is useful to indicate water level in tank. So we don't have to worry about overflow.

BeginnerShowcase (no instructions)1 hour618

Things used in this project

IC7404

It is a not gate IC

LED (generic)

General Purpose Transistor NPN

Resistor 10k ohm

Resistor 221 ohm

9V battery (generic)

9V Battery Clip

Breadboard, 400 Pin

10 Pc. Jumper Wire Kit, 5 cm Long

I am in the second year of engineering and as a part of our term work we have to do a mini project. This project is useful for beginners

Circuit Diagram-

here is the small video how it works

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