Water Sensor Circuit Diagram

The circuit produces the sound when the sensor senses a drop of a water leak.
Water sensor circuit diagram. In this project two circuits are used. Transmitter circuit transmitter circuit is shown in the figure below. Arduino water level indicator circuit. Fig1 in this circuit an ultrasonic sensor is connected to pin d9 and d10 pin of arduino.
Water level alarm circuit using level sensor. The following circuit shows the water level circuit diagram. Connect three 1k resistors to the pin 15 13 and 10 of uln 2003 ic as shown in the circuit diagram. It can be used to detect the presence the level the volume and or the absence of water.
Ultrasonic sensor is powered by vcc and gnd pin these pins are connected to vcc and gnd pin of the arduino. We can use the three different colored leds to create three detection levels. If you are new to arduino and lcds you can consider reading this interfacing arduino and lcd article. Connect the pin 7 4 and 2 of uln 2003 ic to create three different levels in the water container.
The water flow sensor circuit diagram is shown below to interface a water flow sensor and lcd 16x2 with arduino. The pic below shows you the pinout of the water flow sensor. Arrange the components as shown in the picture. Flow sensor photoelectric sensor.
Water sensor brick is designed for water detection which can be widely used in sensing rainfall water level and even liquid leakage. However one can use two metal needles injection needles to make the sensor. Water switch circuit schematic.