You may have bad experiences having forgotten to close the water valve and wasting water and money 😉. Or you nay have a bad experience having forgotten to fill the water tank and no water situations.
I know that you will realize this is not an complex circuit but this is very useful to solve those issue in your real life.
Since it is a simple circuit, shall we move to the project.
The circuit is based on 4 transistors and the out out is given by 4 LEDs. Following are the required parts.
- 2N2222 Transistors
- 120 ohm Resistors
- LEDs
- Wires and cables.
- a PVC pipe
The circuit is given below.
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