Overview
This project is about how we can solve the daily problem of wasting water due to overflowing of tanks and wasting of water using this module we can save a lot of water wasted daily.
In this smart water motor whenever the tank has water at a certain level will turn off automatically and whenever the water in the tank is less than the minimum level the motor will turn on automatically.
Hardware required
- Arduino Uno R3
- Resistor
- Jumper Wires
- Ultrasonic Sensor
- Breadboard
- DC Motor
- Diode
- NPN Transistor
- 9v Battery
Schematic Diagram
Fig 1. Circuit Diagram
Arduino Code :
long duration, cm, inches;
void setup() {
Serial.begin (9600);
pinMode(8,OUTPUT);
}
void loop()
{
pinMode(9, OUTPUT);
digitalWrite(9, LOW);
delayMicroseconds(5);
digitalWrite(9, HIGH);
delayMicroseconds(10);
digitalWrite(9, LOW);
// Read the signal from the sensor:
pinMode(9, INPUT);
duration = pulseIn(9, HIGH);
Serial.println(duration);
// convert the time into a distance
cm = (duration/2) / 29.1;
inches = (duration/2) / 74;
if(inches > 57){ //tank size 5 feet = 60 inch,
digitalWrite(8, HIGH); // start if 57 inch empty
}else if(inches < 5) // stop if 5 inch to fill
digitalWrite(8, LOW);
Serial.print(inches);
Serial.print("in, ");
Serial.print(cm);
Serial.print("cm");
Serial.println();
delay(250);
}
Precautions
- Connections should be done properly.
- Arduino is case Sensitive so code accordingly.
- Give different and appropriate colors to the wires.
- Use resistors for sensors and LCDs.
