Today we are going to do about the leak alarm, which can be placed in hard to reach places.
The creation of such a signal was the incident happened at my house. Synulya unnoticed by us pulled the drain hose washing machine. The machine washed. And we were at home and did not know that we had was the bathroom and the water flowed out into the corridor.
Step 1: We Will Need.
We will need.
- Battery 3 volt CR1632
- One transistor BC517, BC816 or any other NPN Darlington.
- Resistor 1-2 megohms.
- Piezo electric buzzer
Step 2: The Scheme Is Very Simple
connect a transistor and a resistor
connect the battery
We put into the body
placed in hard to reach places
The more detail you can see in the video.