Automatic Rain Sensing Car Wiper

By srrobotics PROJECTS Comments Off

As the name suggests the automatic rain sensing wiper senses the rain or fall of water over the targeted area and the wiper starts working without us having to start and stop it again and again. This is a modified version of the normal rain wipers present in car with similar working, but this version is accurate and energy saver as it knows when the window needs wiping and what should be the frequency of its movement to provide better results.

How does it work?

The working of this system is pretty simple. As soon as water droplets are introduced to the system, it conducts electricity and connects the flow of current in the open circuit of wiper system. The system senses this presence of water and conveys this to the microcontroller Arduino NANO .The microcontroller then processes the data and guides the servo motor to start and move the wiper as per the need. Here we use IR sensors along with the rain sensor to make the connection work.

Step 1: Collecting the Components required for this project.

ARDUINO NANO MICROCONTROLLER
RAIN SENSOR
IR SENSOR MODULE
SERVO MOTOR
9V BATTERY
BATTERY CAP
Wires

You can buy all these components with instructions by clicking here.

Step 2: Assembling the Components – Circuit Design

Car Wiper (1).jpg

Connect all the components with the required wires as shown in the above diagram

Step 3: Uploading the Code in the microcontroller

Connect the Arduino UNO to PC or laptop with given USB cable.
Open Arduino IDE or download it from here
Go to tools> Board:> and select Arduino NANO

Screenshot (20).png

Select TOOL> PORT> COM port

Note that the port option will not be active until you connect Arduino with your laptop

If you have connected the Arduino and it is still not active then you might want to check your driver, use CH340 for Arduino

Copy and paste the code given below in the Arduino IDE and hit Upload

#include <Servo.h>
Servo myservo;
int pos = 0;

void setup() {
  myservo.attach(9);
}

void loop() {
  int sensorValue = analogRead(A0);
  if (sensorValue> 570)
  {
    for (pos = 0; pos<= 160; pos += 1) {
    // in steps of 1 degree
      myservo.write(pos);
      delay(7);
    }
    for (pos = 160; pos>= 0; pos -= 1) {
      myservo.write(pos);
      delay(7);
    }
  }
  else {
    myservo.write(15);
  }
}

Screenshot (21).png

FINAL PROJECT

If you want to buy this handmade project, with complete project synopsis for yourself click here

Thank you for learning with us. We hope all the steps and details are easy to understand. You can try to make your own project by watching this easy tutorial video.