Water Sensor Circuit Diagram

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