The purpose of this circuit is to sense the water level in the windshield wiper reservoir. The circuit triggers a buzzer when the level drops. The circuit is from an American 80's documentation. R1 can be 10k and R2 10k.
![](/images/stories/cir/213212322023_143332_0001.gif)
The purpose of this circuit is to sense the water level in the windshield wiper reservoir. The circuit triggers a buzzer when the level drops. The circuit is from an American 80's documentation. R1 can be 10k and R2 10k.