How to make a Security System with Ultrasonic Sensor and Arduino

Build a distance sensitive security system with ultrasonic sensor and Arduino board.
This project is an ultrasonic sensor based alarm. It is distance sensitive so the speed of the buzzer depends upon how close or far the object is. If the object is near then the buzzer beeps faster and if it far then the buzzer beeps slowly.
Components Used:
1. Arduino Uno - amzn.to/3JsbMOw
2. Buzzer - amzn.to/3pOSsDr
3. Ultrasonic Sensor - amzn.to/3ziEMno
IMPORTANT LINKS:
Schematics - bit.ly/3wNGR92
Code - bit.ly/3tbntRb
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📷Camera - amzn.to/325QDZm
📱Tab - amzn.to/3dUZRKP
💻Laptop - amzn.to/3ywukrS
🔭Tripod - amzn.to/3saDitD
💡Lights - amzn.to/320iXwB
🎤Mic - amzn.to/3p4nneF
Timestamps:
0:00 Project Introduction
0:44 Circuit connections
1:58 Uploading the sketch
2:34 Final Output
Social Media
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Full Tutorial-
bit.ly/3dRFwp1
Check out my other projects:
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[@dhishiva46]

Thankyou so much!! Worked well for me❤

[@johnjeffersonebergado7496]

Works fine for me Thank you for uploading!!!

[@user-mj5ch6ws7r]

Did you use 7v or 9v?
Also, some of the comments said that the code is not working, how does it work with you? Please help me

[@banttubanttu7408]

I want the same with high sensitivity, I mean It should work for any movement take place with a distance as much as 30-40 feet from the sensor. Thanks for your projects , you deserve more viewers.

[@boobaljanakiramulu7277]

You can adjust the distance in the coding

[@queen_girl56]

Thnk u thnk u so much it's working

[@adamboy-is-great-23]

yo what is after else function in line 38
I can't find it in the video. Also there are many bugs in the code

[@Mayank_m201]

thank you...🤓👍

[@vaishnavikoornala9669]

i do not have a buzzer...is it still possible to make this?

[@schecterlynx6775]

Is there barcoding for the device too?

[@Szwaz9765]

It is working but my buzzer is making less sound how to fix it

[@agalyab3619]

Library file choosen is needed or not

[@_sourx4803]

HII TYSMM I DIDNT PAY ATTNETION IN CLASS HAHA AND I DID THIS LAST MINUTE AND GOT GOT MARKS THANKS AGAIN

[@n_tech3861]

😂

[@Chathu-po7vd]

How to make in this program

[@yalamanchilisameera7030]

mam your project is too good i tried this but i can't able to select the port in the tools can you please help me... i have to submit this project tomorrow plzzz help me mam....

[@agdimi5720]

Did anyone do it with scratch 4 arduino? Because I would like some help with the code s4a. It's for elementary school class

[@dragonknight0siriphatra810]

thank you but my buzzer is super quiet what could i do to fix this?

[@n_tech3861]

Amplify it, use a transistor circuit

[@yyyyyy1736]

Yesss

[@mohammedyoonus7651]

While I upload the coding itself the buzzer starts to sound I done all thinks as per the circuit diagram why it's happening

[@asg2832]

when finally uploading the coding to the board add the buzzer then it's alright

[@mhdzhafran606]

does this projeft use battery 9v?

[@n_tech3861]

I used 7V

[@ainuldayana1227]

what volt of buzzer are used in this project?

[@Arafat325]

I don't know 😅

[@leni9605]

something is wrong with the code. The buzzer wont top beeping even when nothing is in front of the sensor. Check the code

[@KoreanClass97519]

Same...did u do any changes...pls let me know if u hv

[@user-mj5ch6ws7r]

Did you use 7v or 9v battery?

[@user-mj5ch6ws7r]

Please answer me I have a project and the deadline after 5 days

[@bokobokoko9161]

Can I replace the beeper with 5V pump?

[@n_tech3861]

Yes

[@mdtameem324]

​@@n_tech3861 could you tell where to connect battery to audrino uno

[@Szwaz9765]

​@@mdtameem324just connect the wire of the battery to :
Black wire gnd
Red wire to vin

[@Jjtofe]

The voice is quite what should I do

[@TheAseemShahi]

How many voltage inpute

[@n_tech3861]

9 V to arduino

[@user-ni9oh4jj3f]

Hi, i have a project on Arduino , can u help me plz?

[@user-ol3vp1tn2q]

can you upload the link coding ?

[@jaredgalecia6603]

Saan po yung code

[@anar07nichani37]

hyyy i am getting an error

[@multiscients2219]

Check your wires

[@shuttyskenzin9237]

Hi please check your code, your code has some error. please go in ur code and verify it please thx and reply fast thx

[@n_tech3861]

Hey can you please mention where exactly is it going wrong because I am unable to find it

[@shuttyskenzin9237]

@@n_tech3861 Hi, so when i run the code it said something like "can have definition variable before '{' token" something like that

[@n_tech3861]

@@shuttyskenzin9237 you may have missed an opening or a closing bracket

[@tosinbolaji416]

Please who has the correct code

[@jindagiwithsmile391]

Mam please please please 🙏 send the code in my comments

[@n_tech3861]

#define trigPin 6
#define echoPin 5
#define buzzer 2
float new_delay;
void setup()
{
Serial.begin (9600);
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
pinMode(buzzer,OUTPUT);

}
void loop()
{
long duration, distance;
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = (duration/2) / 29.1;
new_delay= (distance *3) +30;
Serial.print(distance);
Serial.println(" cm");
if (distance < 50)
{
digitalWrite(buzzer,HIGH);
delay(new_delay);
digitalWrite(buzzer,LOW);

}
else
{
digitalWrite(buzzer,LOW);
}

delay(200);
}

[@gergesezat4715]

Jjj