Published January 30, 2022 © GPL3+

Ultrasonic parking radar

This project aims to build a powerful ultrasonic parking radar that may be used in your very expensive car... or not!

IntermediateFull instructions provided344

Things used in this project

Hardware components

Arduino UNO

Ultrasonic Sensor - HC-SR04 (Generic)

5 mm LED: Red

Buzzer

Breadboard (generic)

Story

In this project, we would like to reproduce the ultrasonic parking radar that is now present in most of recent cars. The project uses an ultrasonic sensor to continuously measure the distance to the closest object. The three LEDs will light up according to the distance of detected objects, and the buzzer will sound for very close objects !!!!!!!

This is the situation when the distance is greater than 30 cm:

When the distance is less than 30 cm, the orange LED lights up:

Finally, when the distance is less than 20 cm, both the red LED and the buzzer are on:

Code

codes

#include <HCSR04.h>
int BRUIT = 2;
const int VERT = 13;
const int JAUNE =12;
const int ROUGE = 11;
double dist;
HCSR04 hc(5, 6);

void setup() {
   pinMode(BRUIT,OUTPUT);
   pinMode(VERT, OUTPUT); 
   pinMode(VERT, OUTPUT); 
   pinMode(JAUNE, OUTPUT); 
   Serial.begin(9600);  
}

void loop() {
   dist = hc.dist();
   Serial.println(dist);
   if (dist>30|| dist == 0){
     digitalWrite(VERT, HIGH);
     digitalWrite(JAUNE, LOW);
     digitalWrite(ROUGE, LOW);
     digitalWrite(BRUIT, LOW);
   }
   else if (dist>20 && dist<=30){
     digitalWrite(VERT, LOW);
     digitalWrite(JAUNE, HIGH);
     digitalWrite(ROUGE, LOW);
     digitalWrite(BRUIT, HIGH);
   delay(50);
   digitalWrite(BRUIT, LOW);
   }
    else if (dist<=20 && dist>0){
     digitalWrite(VERT, LOW);
     digitalWrite(JAUNE, LOW);
     digitalWrite(ROUGE, HIGH); 
     digitalWrite(BRUIT, HIGH);
    }
   delay(1000);
}

Ultrasonic parking radar

Things used in this project

Hardware components

Story

Schematics

wiring

Schema

Code

codes

Credits

cbou12oo

Comments

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Ultrasonic parking radar

Ultrasonic parking radar

Things used in this project

Hardware components

Story

Schematics

wiring

Schema

Code

codes

Credits

cbou12oo

Comments

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