Using Ultrasonic Distance Sensor HC-SR04 with Buzzer, LED and Arduino

[@maker101io]

Source Code: create.arduino.cc/editor/mertarduinotech/b7022e05-f709-4003-b2a7-5c487ee25007/preview Recommended Items: Use Your Muscles in Project - amzn.to/3wdL45C​ 37 Sensor & Module Packages - amzn.to/3m66WeQ​ Try this Robot Arm - amzn.to/3fq8DCl​ Best Resin 3D Printer - amzn.to/39tY8KB​ Arduino Compatible Kits - bit.ly/2J2AFF7​ Banggood Spring Sale - bit.ly/3slMbOn​

[@hyperandaimbot]

Bro not uploading

[@hyperandaimbot]

Itt stops at 9 percent

[@hyperandaimbot]

Bro how can we do it without resister

[@hyperandaimbot]

Please send me code

[@Cxpys]

what to do if i got an error message

[@Kona-bona]

i had this project as an exam in my informatics class , and it worked and i got straight A. thank you.

[@PachaHooper]

can u send the code pls

[@mrbowlingalley]

3 years later and we are still building this. I set safetyDistance to 25. With only LED and no buzzer. Detects my cat coming in the room. Pretty cool - I guess!

[@lecongquyen2189]

What a great detailed guideline! I followed step by step and it work. I will use it for my final electrical engineering project. Thanks a lot!

[@AVolt]

thank you so much it worked with me. your fan from middle east اخوك من الشرق الاوسط

[@PachaHooper]

he man can u send the code if u got it please

[@y.osa269]

اخوي ممكن الكود ضروري الله يسعدك

[@Epic_stickman90]

@@PachaHooper the code is in pinned comment

[@muhammadfirdauz5272]

NICE!!! Saved me a thousand dlrs in school fees

[@alvaronicolasgamarrapena5596]

really good video man, code is great and when i tried it worked the first time, keep the great work bro

[@AR-dy3fu]

If anyone has any problems to get the code...just copy mine. // defines pins numbers const int trigPin = 9; const int echoPin = 10; const int buzzer = 11; const int ledPin = 13; // defines variables long duration; int distance; int safetyDistance; void setup() { pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output pinMode(echoPin, INPUT); // Sets the echoPin as an Input pinMode(buzzer, OUTPUT); pinMode(ledPin, OUTPUT); Serial.begin(9600); // Starts the serial communication } void loop() { // Clears the trigPin digitalWrite(trigPin, LOW); delayMicroseconds(2); // Sets the trigPin on HIGH state for 10 micro seconds digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); // Reads the echoPin, returns the sound wave travel time in microseconds duration = pulseIn(echoPin, HIGH); // Calculating the distance distance= duration*0.034/2; safetyDistance = distance; if (safetyDistance

[@eleanorrigby226]

lol 9 year old army is everywhere

[@issrasaid4822]

A R the

[@maneesh2377]

Tq, why we want to multiple with 0.034

[@kinderparahahahah0616]

No fake

[@quentinb9692]

It came in a kit, first thing that I acutally got to work with my UNO. Thanks for thie vid.

[@chaturbhujbiyani4633]

wow...u did it ....u saved me....i used it in science project...

[@eoz8985]

i also have a science fair can you explain and the coding

[@shlb3692]

OMG it works thank you so much, please keep sharing projects like this.

[@HAYRISHEENVASUDEVANMoe]

thank you bro you are king of arduino

[@Ganondalf_the_grey]

got the uno and this is a great tutorial. thanks.

[@mohdnaqibhaiqal2974]

I lke the video because is short and easy to understand

[@crinnovator9444]

East or west mert is the best...... Thanks

[@theelectromaker6215]

Thank you very much, i saw many vids but any of them din't work but your worked thank you very much.

[@AdityaYadav-mk4ye]

Thank you very much i am starting to learn arduino and thanks to you i can learn the hardware and then i will work on software

[@dylansworld54321]

Great project! Why is my buzzer clicking instead of buzzing though?

[@SG-gr3fl]

Did you ever figure it out?

[@djeastreofficial]

Awesome 👌🏻

[@tomanprasad8859]

Such a beautiful project ❤

[@marcelnalewajko3537]

Thank you! This tutorial was very good and helped me a lot

[@melihapa3884]

Hello. There are already a lot of these examples on youtube. In your circuit the lights are either on or off. The sound either squeaks or it doesn't. I wish you had made a circuit where the intensity of sound and light increases as you get closer. :(

[@ArzenikDev]

Bro just recode it to do that it's not that hard

[@jwf677]

// defines pins numbers const int trigPin = 9; const int echoPin = 10; const int buzzer = 11; const int ledPin = 13; // defines variables long duration; int distance; int safetyDistance; void setup() { pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output pinMode(echoPin, INPUT); // Sets the echoPin as an Input pinMode(buzzer, OUTPUT); pinMode(ledPin, OUTPUT); Serial.begin(9600); // Starts the serial communication } void loop() { // Clears the trigPin digitalWrite(trigPin, LOW); delayMicroseconds(2); // Sets the trigPin on HIGH state for 10 micro seconds digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); // Reads the echoPin, returns the sound wave travel time in microseconds duration = pulseIn(echoPin, HIGH); // Calculating the distance distance= duration*0.034/2; safetyDistance = distance; if (safetyDistance

[@hyperandaimbot]

Hi 2nd line from last do we have to write any number after serial.print(distance)

[@איילהחלק]

Is this a code that causes a bulb to light up at a certain distance?

[@rushabhvaidya7930]

Thanks a lot you did it man!!! Thank again

[@Si-uy8qg]

Nice video, by the way, i'm John Blas everyone.

[@thomasalexander1563]

Nice tutorial,, Luckily find it in instructable.. Thank you.. Keep it

[@williamkakooza4603]

Well done Professor

[@hkiceman001]

very interesting , I change the LED to a servo motor, it works .... good According to your code information , it means can do anything when change the led or buzzer, thank you !

[@AhmedHassan-qe2hs]

what is the code if i attach vibrator instead to led ???

[@srikanthch5858]

Can u send me the source code

[@Sheik_ULEM]

Thank you this was very clear and easy to understand

[@kaipeen2523]

does it work？

[@LhorKhan214]

hi, can you explain where did you get this value 0.034? Edited: i did a google search, its the speed of sound (343 m / s)

[@vishnutripathi2885]

great work....very helpful

[@avishai827]

‏i can't use the arduino file

[@anannt7777]

yes

[@haritahiranvasu8288]

@Barna Lengyel Thanks!! Needed this, wasn't able to access it from link in description.

[@purple_clouds3797]

This is just what i needed and it's very simple😆😇😇🤤

[@jacoblewis8543]

Nice Job Ur Great with the tutorial which is very understandable and the code. One problem is that when I went to the source code to look it took me to ur website with no code

[@y.osa269]

Did you get the code? If yes please send it to me

[@jacoblewis8543]

@@y.osa269 no i did not get it

[@AyushRaj-me8ly]

I like your video, is very useful for our project. Keep making these videos :)

[@ArzenikDev]

I edited your script a bit so it goes beep stop beep stop within a set range thank you for the video

[@Sore_YT]

My Circuit Isn't working, can somebody help?

[@pizzulgaming6253]

Hi .... Can explain to me about this project that use of what system ? Hopefully in full description

[@giancarlosgza]

Amazing video!!!!

[@MarkSmith-rb5mc]

Thanks for a well laid out and easy to understand tutorial. Keep up the good work!

[@deadchords4919]

digital pin 13 has a build in resistor so why to put another one?

[@williammichael3913]

Hey! I love this project tysm. But I was wondering How would I increse/decrese the range so that it will turn buzzer on when someone is more farther away? Thanks!

[@Kirtymonma]

William Michael did you ever figure out?

[@alejandroacosta6495]

Just look the code, he configured the "Safe Distance to 5", if you want to make it in different length just change the safe distance to a greater number

[@cheshire793]

@@alejandroacosta6495yeah, my friend and i are trying that and it's not working. do you have any other suggestions?

[@stemtube8006]

My buzzer is sounding like a Geiger counter??? it’s working but not properly, is it the buzzer or count I fix that somehow

[@Thajoeee]

to change the sound of the buzzer you need to replace the original piece of code with "if (safetyDistance

[@andreisantos5088]

i'm brazilian and liked very good so much your video, congratulations!!!

[@namithss7966]

thanks this was good work

[@nurinqasrina7826]

Why my led keeps on and the sensor is not working 😣

[@emersonrocha1097]

ola,fiz esse projeto com seu codigo. mas ele ficou aprando com led vermelho sem nada na frente,como se houvesse um obstaculo sem ter.

[@emilusfiogbe3450]

merci beaucoup c'est astronomiquement instructif!!

[@ikramnazri6748]

What type of resistor you use?

[@kevinpriadinata1184]

can u make a vidio how to modify the distance

[@iqratareen-mh4xw]

Thank u sir ❤❤its working

[@afnanrahman6905]

it is working only on time if i remove the obstacle then it is still alarming and blinking led

[@MohamedAzizYazidi]

why do when i check the monitor to see the distance every time it put the disance then a 0 again and again and that makes the buzzer make noise even when the is nothing infront of the sensor

[@STudyTime4UVikasMishraSir]

Thank you for your nice and easy video editing Surely helpful for beginners

[@cubebrix5801]

hi. can you help me, im only using led and its only blinking

[@InkByt3]

@@cubebrix5801 If you're only using the LED that is what it is supposed to do.

[@cassandraservo]

Where do u write the code?

[@katianuriu7506]

What type of buzzer did you use?

[@Khichri7086]

What type of jump wires

[@ArzenikDev]

It doesn't matter what type as long as it's male to male

[@HotDoggyStand]

any reason why mine is reading out distances in the 2ks. I used the code you provided us with.

[@ahmedomaar]

Thanks for your helping, I make it

[@G.V.Ramnivedan]

While coding should we connect the arduino board to the bread board please tell me soon

[@assampwd]

digital pim 13 already has a resistor attatched to it. So need of that extra resisitor

[@applefinn3933]

how do you change the distance of when the buzzer starts

[@AvighnaDaruka]

Hi bro, did you use passive or active buzzer?

[@harshithraj6055]

Only we have to do this code with computer only or we can use cellphone

[@TusharSharma-is1mi]

Great job yaar I needed this help and....

[@JaydiEntenia]

yey it worked, but how do i make it so that it'll have longer distance?

[@dhirajmandal715]

thanks it help a lot ❤❤

[@yoMyoM-k6q]

Why I can't use "serial.print/In" and "distance"

[@belaaa522]

THNKYOUU ITS WORKS

[@aryansuratkar1980]

My project was unsuccessful can you help me please

[@AakashAakash-xr6qb]

Can we use capacitor and what is the purpose ?? Bro

[@ArzenikDev]

Why would you add a capacitor???? That just holds energy and shoves it in bursts

[@linmgkhine344]

I would like to know How much Safety factor ? How to calculate? Thanks

[@ibrahimEditzFootball]

Can we make it without led

[@shrutiverma9077]

Can we directly use the led on pin 13

[@Dofusvidss]

Thank yoou very much for your tutorials ! I'm a beginner on arduino, why don't you connect the buzzer (+) on VCC ?

[@mohammadabas3890]

How can I connect two sensors in series in this case?

[@phonepaseuthkhounthachack9459]

It is work. Thanks bro

[@gunjanchoudhary5310]

Sir Mera coda upload nhi ho rha h uske liye mujhe library download Karna padega but Kon sa library download karu ye nhi samjh me aa rha

[@mehrozali2886]

sir, how to increase and decrease distance range ??? please please please reply

[@chaturbhujbiyani4633]

hatt

[@Joe-xq6on]

lettuce

[@SMARTS-mv4nh]

what the problem i can't able to run this either the buzzer continuously sounds or sometimes not sounds ,i removed the light section from it

[@rhythms7500]

Same here What's the solution for that?

[@millertalkstv2525]

remove the cover on the buzzer..

[@azajshaik9044]

without ohm resistor the will work or not

[@azajshaik9044]

i mean led will work or not

[@kutlupolat7036]

if you do not use resistor,it's probably LED burning out. Resistor is protecting LED by decrease current.

[@_vishnu2142_]

Can we do this project without led and resistor ? Please reply sir

[@OfficialAldrxch]

Do you have the circuit diagram for this project? Urgently need it..thanks

[@ravichandrika4824]

me too want the circuit diagram can any one mail it please ([e-mail])

[@OfficialAldrxch]

@@ravichandrika4824 no need to bother.. its been a year and still no reply from the creator

[@kaipeen2523]

Is that works？

[@OfficialAldrxch]

@@kaipeen2523 still no reply from the creator since 2018 😂

[@3bsily]

how i can add vibration motor with this project > same a smart blind stick please any one help me to add vibration motor

[@prashantpal8376]

Arduino Uno R3 Development Board with USB Cable can we use this

[@egorkorbasov3422]

Hi! I tried to do 2 things together, Like a bell ring (you push the button and hear the buzzer rings) and LDR+3colorLED. But when I press the button when there is no light it rings only when the loop of LED is over. Why is it so?

[@sreekarbss5475]

Thanks bro it helped in my project

[@janellguerriero1361]

Can u help me pls

[@y.osa269]

I'd like the code, please

[@aConfusedAmp]

I only have 2 GND pins and your video requires 3 (so far). What do I do?

[@chrisnyenya5233]

one common ground can be used on the buzzer and LED

[@tanvirahmad3671]

Use a wire to connect it to breadboard to make it short. :D

[@charliebell7163]

How would i make it louder ? and also how would i make it longer range thanks you!!

[@Umutt1316]

Teşekkürler işime yaradı ve bir beğeni de benden

[@rumaishafatima6053]

Sir, how will it be if you connect this project with GSM modem?

[@jamesmay4547]

Thank you for the great video and what is the name of the background music

[@UmmmIlovemath]

how to get the app for distance

[@dhomepanda22]

what type of Resistor

[@chalsu]

Hey, can I add an LCD to this project? and How will the code be written when the LCD is added?

[@shuvamjung1639]

Ultra sonic security system or ye same hai??

[@rafabalderas8948]

Can I connect more than 1 LED? If i wish to disconnect the buzzer l, should I delete something in the code??

[@alphagamingff2011]

Can ve use another board uno small

[@prempanchal7721]

Hey Bro, I Have 3 Pin Buzzer Sensor GND, I/O, VCC... So which connection should I do...?

[@Sketch_Artist645]

If I open the source code I can't find the code