Water Level Detector

Step 1: Components Required :

You will need the following materials for making your own Water Level Detector

Arduino Uno

Ultrasonic Sensor (HC-SR04)

Jumper wires

4 Digit seven segment display

Step 2: Connect Arduino Uno With HC-SR04 and 4 Digit Seven Segment Display :

 HC-SR04                 Arduino Uno
     
 GND	                 GND
     
     ECHO                    D9

     TRIG                    D8

     VCC                     5V


   4 Digit Display          Arduino Uno

    GND                      GND

    VCC                      5V

    DIO                      D3

    CLK                      D2

Step 3: Upload Sketch in ArduinoIDE :

You can Download it form here: https://github.com/shubham1008042/Water-Level-Detector/blob/master/task_water/task_water.ino

Step 4: Working Of The Project:

In this project i have used arduino uno with ulrasonic sensor(to measure percentage of filled water) and 4 digit seven segment display. The connections of arduino uno with HC-SR04 and 4 digit display is shown in step 2.

The ultrasonic sensor uses sonar to determine the distance to an object. Here’s what happens:

1. The transmitter (trig pin) sends a signal: a high-frequency sound.
2. When the signal finds an object, it is reflected and…
3. … the transmitter (echo pin) receives it. When ultrasonic sensor detect the level of water trig pin signal reflected back and echo pin of sensor recieves the signal. In my project, the hc-sr04 sensor detect the percentage of water filled in the tank, and show it on the 4 digit seven segment display. I have taken the height of tank as 12cm and also it is static(constant) and given gap of 2 cm that the flow of water doesn't touch to the sensor that i used(HC-SR04).

The percentage of water filled is shown by using formula: ((total height of tank-distance of water from sensor)/total
height of tank)*100

For code and formulas that i used in this project, you can see it in my sketch as mentioned in step3.