I made a Water Level Indicator on Breadboard using BC547 Transistor.
Circuit Diagramm at the End of the Video
Components :
3x BC547 Transistors
3x 330 Resistors
3x LED
9V Battery
Breadboard
Jumper wires
Glass of Water 😅
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![](https://i.ytimg.com/vi/ghXExbBpctM/maxresdefault.jpg)