Accident Preventing Car
Created by :- Tasnim Zotder
This is Tasnim Zotder
Code :-/*
Car Crash Avoidance System
Author: Mukhtar Zotder | 2021
License: MIT
*/
#include <Arduino.h>
#define triger D1
#define echo D0
#define buzzer D5
#define ENA D2
#define IN1 D8
#define IN2 D7
#define redLED D4
#define greenLED D6
int isStopped = 0;
void ledSelect(int led) {
if (led == 0) {
digitalWrite(redLED, 1);
digitalWrite(greenLED, 0);
} else if (led == 1) {
digitalWrite(redLED, 0);
digitalWrite(greenLED, 1);
}
}
int getDistance() {
int distance;
long duration;
digitalWrite(triger, 0);
delayMicroseconds(2);
digitalWrite(triger, 1);
delayMicroseconds(10);
digitalWrite(triger, 0);
duration = pulseIn(echo, HIGH);
distance = duration * 0.034 / 2;
return distance;
}
int getDistanceAvg() {
int totalDist = 0;
for (int i = 0; i < 10; i++) {
int dist = getDistance();
totalDist += dist;
delayMicroseconds(100);
}
return (int)(totalDist / 10);
}
void Buzzer() {
tone(buzzer, 3000, 1000);
}
void backCar() {
digitalWrite(IN1, 0);
digitalWrite(IN2, 1);
analogWrite(ENA, 300);
// delay(200);
// isStopped = 1;
}
void runCar(int value) {
digitalWrite(IN1, 1);
digitalWrite(IN2, 0);
if (value == 1) {
analogWrite(ENA, 360);
isStopped = 0;
} else if (value == 0) {
if (isStopped == 0) {
backCar();
Buzzer();
}
delay(200);
isStopped = 1;
analogWrite(ENA, 0);
}
}
void setup() {
Serial.begin(115200);
pinMode(triger, OUTPUT);
pinMode(echo, INPUT);
pinMode(buzzer, OUTPUT);
pinMode(ENA, OUTPUT);
pinMode(IN1, OUTPUT);
pinMode(IN2, OUTPUT);
pinMode(redLED, OUTPUT);
pinMode(greenLED, OUTPUT);
delay(3500); // for starting the car
}
void loop() {
int dist = getDistanceAvg();
Serial.print("Distance: ");
Serial.print(dist);
Serial.println(" cm");
if (dist >= 8 && dist <= 100) {
ledSelect(1);
runCar(1);
} else {
ledSelect(0);
runCar(0);
// Buzzer();
}
delay(100);
}
Comments
Post a Comment