Arduino Projects

automatic grass cutting machine using arduino

Prateek 1 week ago

0 45 Less than a minute

Table of Contents

Introduction

In this Article, making an automatic lawn mower is a smart and efficient way to maintain your lawn with minimal human intervention. In this project, we use an Arduino to control the movement of the grass cutter.
Equipped with sensors, the mower navigates the lawn, avoiding obstacles while cutting grass to a desired height.

Bill Of Material

S.N	Component	Quantity
1	Arduino UNO	1
2	L293D Motor Driver Shield	1
3	SG-90 Servo Motor	1
4	Ultersonic Sensor	1
5	Bo Motor with Cutting Blade	1

Component

Arduino UNO

L293D Motor Driver Shield

Ultrasonic Sensor

DC Gear Motor

BO Motor & Blade

Circuit Diagram

Code

Before you upload the code just upload a few lib

AFMotor

NewPing

NewPing

//Prateek
//https://justdoelectronics.com
//https://www.youtube.com/c/JustDoElectronics/videos

#include <AFMotor.h>
#include <NewPing.h>
#include <Servo.h>

#define TRIG_PIN A0
#define ECHO_PIN A1
#define MAX_DISTANCE 200
#define MAX_SPEED 190
#define MAX_SPEED_OFFSET 20

NewPing sonar(TRIG_PIN, ECHO_PIN, MAX_DISTANCE);

AF_DCMotor motor1(1, MOTOR12_1KHZ);
AF_DCMotor motor2(2, MOTOR12_1KHZ);
AF_DCMotor motor3(3, MOTOR34_1KHZ);
AF_DCMotor motor4(4, MOTOR34_1KHZ);
Servo myservo;

boolean goesForward = false;
int distance = 100;
int speedSet = 0;

void setup() {

  myservo.attach(10);
  myservo.write(115);
  delay(2000);
  distance = readPing();
  delay(100);
  distance = readPing();
  delay(100);
  distance = readPing();
  delay(100);
  distance = readPing();
  delay(100);
}

void loop() {
  int distanceR = 0;
  int distanceL = 0;
  delay(40);

  if (distance <= 15) {
    moveStop();
    delay(100);
    moveBackward();
    delay(300);
    moveStop();
    delay(200);
    distanceR = lookRight();
    delay(200);
    distanceL = lookLeft();
    delay(200);

    if (distanceR >= distanceL) {
      turnRight();
      moveStop();
    } else {
      turnLeft();
      moveStop();
    }
  } else {
    moveForward();
  }
  distance = readPing();
}

int lookRight() {
  myservo.write(50);
  delay(500);
  int distance = readPing();
  delay(100);
  myservo.write(115);
  return distance;
}

int lookLeft() {
  myservo.write(170);
  delay(500);
  int distance = readPing();
  delay(100);
  myservo.write(115);
  return distance;
  delay(100);
}

int readPing() {
  delay(70);
  int cm = sonar.ping_cm();
  if (cm == 0) {
    cm = 250;
  }
  return cm;
}

void moveStop() {
  motor1.run(RELEASE);
  motor2.run(RELEASE);
  motor3.run(RELEASE);
  motor4.run(RELEASE);
}

void moveForward() {

  if (!goesForward) {
    goesForward = true;
    motor1.run(FORWARD);
    motor2.run(FORWARD);
    motor3.run(FORWARD);
    motor4.run(FORWARD);
    for (speedSet = 0; speedSet < MAX_SPEED; speedSet += 2) {
      motor1.setSpeed(speedSet);
      motor2.setSpeed(speedSet);
      motor3.setSpeed(speedSet);
      motor4.setSpeed(speedSet);
      delay(5);
    }
  }
}

void moveBackward() {
  goesForward = false;
  motor1.run(BACKWARD);
  motor2.run(BACKWARD);
  motor3.run(BACKWARD);
  motor4.run(BACKWARD);
  for (speedSet = 0; speedSet < MAX_SPEED; speedSet += 2) {
    motor1.setSpeed(speedSet);
    motor2.setSpeed(speedSet);
    motor3.setSpeed(speedSet);
    motor4.setSpeed(speedSet);
    delay(5);
  }
}

void turnRight() {
  motor1.run(FORWARD);
  motor2.run(FORWARD);
  motor3.run(BACKWARD);
  motor4.run(BACKWARD);
  delay(500);
  motor1.run(FORWARD);
  motor2.run(FORWARD);
  motor3.run(FORWARD);
  motor4.run(FORWARD);
}

void turnLeft() {
  motor1.run(BACKWARD);
  motor2.run(BACKWARD);
  motor3.run(FORWARD);
  motor4.run(FORWARD);
  delay(500);
  motor1.run(FORWARD);
  motor2.run(FORWARD);
  motor3.run(FORWARD);
  motor4.run(FORWARD);
}

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//Prateek

//https://justdoelectronics.com

//https://www.youtube.com/c/JustDoElectronics/videos

#include <AFMotor.h>

#include <NewPing.h>

#include <Servo.h>

#define TRIG_PIN A0

#define ECHO_PIN A1

#define MAX_DISTANCE 200

#define MAX_SPEED 190

#define MAX_SPEED_OFFSET 20

NewPing sonar(TRIG_PIN, ECHO_PIN, MAX_DISTANCE);

AF_DCMotor motor1(1, MOTOR12_1KHZ);

AF_DCMotor motor2(2, MOTOR12_1KHZ);

AF_DCMotor motor3(3, MOTOR34_1KHZ);

AF_DCMotor motor4(4, MOTOR34_1KHZ);

Servo myservo;

boolean goesForward = false;

int distance = 100;

int speedSet = 0;

void setup() {

myservo.attach(10);

myservo.write(115);

delay(2000);

distance = readPing();

delay(100);

distance = readPing();

delay(100);

distance = readPing();

delay(100);

distance = readPing();

delay(100);

}

void loop() {

int distanceR = 0;

int distanceL = 0;

delay(40);

if (distance <= 15) {

moveStop();

delay(100);

moveBackward();

delay(300);

moveStop();

delay(200);

distanceR = lookRight();

delay(200);

distanceL = lookLeft();

delay(200);

if (distanceR >= distanceL) {

turnRight();

moveStop();

} else {

turnLeft();

moveStop();

}

} else {

moveForward();

}

distance = readPing();

}

int lookRight() {

myservo.write(50);

delay(500);

int distance = readPing();

delay(100);

myservo.write(115);

return distance;

}

int lookLeft() {

myservo.write(170);

delay(500);

int distance = readPing();

delay(100);

myservo.write(115);

return distance;

delay(100);

}

int readPing() {

delay(70);

int cm = sonar.ping_cm();

if (cm == 0) {

cm = 250;

}

return cm;

}

void moveStop() {

motor1.run(RELEASE);

motor2.run(RELEASE);

motor3.run(RELEASE);

motor4.run(RELEASE);

}

void moveForward() {

if (!goesForward) {

goesForward = true;

motor1.run(FORWARD);

motor2.run(FORWARD);

motor3.run(FORWARD);

motor4.run(FORWARD);

for (speedSet = 0; speedSet < MAX_SPEED; speedSet += 2) {

motor1.setSpeed(speedSet);

motor2.setSpeed(speedSet);

motor3.setSpeed(speedSet);

motor4.setSpeed(speedSet);

delay(5);

}

void moveBackward() {

goesForward = false;

motor1.run(BACKWARD);

motor2.run(BACKWARD);

motor3.run(BACKWARD);

motor4.run(BACKWARD);

for (speedSet = 0; speedSet < MAX_SPEED; speedSet += 2) {

motor1.setSpeed(speedSet);

motor2.setSpeed(speedSet);

motor3.setSpeed(speedSet);

motor4.setSpeed(speedSet);

delay(5);

}

void turnRight() {

motor1.run(FORWARD);

motor2.run(FORWARD);

motor3.run(BACKWARD);

motor4.run(BACKWARD);

delay(500);

motor1.run(FORWARD);

motor2.run(FORWARD);

motor3.run(FORWARD);

motor4.run(FORWARD);

}

void turnLeft() {

motor1.run(BACKWARD);

motor2.run(BACKWARD);

motor3.run(FORWARD);

motor4.run(FORWARD);

delay(500);

motor1.run(FORWARD);

motor2.run(FORWARD);

motor3.run(FORWARD);

motor4.run(FORWARD);

}

Introduction

Bill Of Material

Component

Circuit Diagram

Code

Prateek

Vehicle Accident Alert System With ADXL335 Sensor

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