I have made a small water level indicator- alarm (for water
overflow theme.)
Circuit Diagram :
I have used material as per circuit diagram and copper wires
for sensor.
|
Sr. No.
|
Material Name
|
Qty.
|
|
1.
|
9v battery/5v adaptor
|
1
|
|
2.
|
LED (1 watt)
|
3
|
|
3.
|
PCB
|
1
|
|
4.
|
Resistors-220 ohm
|
6
|
|
5.
|
Transistors –BC547
|
4
|
|
6.
|
Buzzer
|
1
|
|
7.
|
Wire
|
|
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