Arduino with Sound Sensor and LED (Tutorial)

Materials required:
1)An Arduino Uno(with its adapter)
2)Sound sensor
3)Jumper wires
4)A LED
Hope this is helpful.
Check out the code here: kandrproject.b...

[@tatvamkrishnam6691]

It's working good for me! Thanks for the tutorial. For some people in comment section who did not get output - 1. Capital 'S' in Serial.begin(9600) should be used 2. Newly bought sound sensor should be adjusted to normalcy - by screwing the potentiometer in anti clockwise (Analog output pin nearer to you) direction for "20 turns" or so

[@tameemullas5868]

Brother even I also did it in same way but the LED is on through out all time it doesn't react to sound can plz explain?

[@besanamateojrd.376]

Thanks Bombay., IT students in the Philippines are always watching Indian Tutorials incomes of IT major subjects.

[@Otranna]

Thanks friend. I was worried why my project it doesn't work but this was helpful.

[@michaelborisow815]

No bullshit, no ambiguity, and you spoke English because the title is also in english. 1100/10

[@rithikgobinath1207]

I am 12 years old, I am very interested in Arduino. I was succeeded in this. Thank you a lot.

[@DreThePlug]

It is a very clever component

[@dnevnipodsjetnik]

It doesn't make any sanse you connect D0 on the sensor to analog input on arduino. When you check readings from D0 (sensor) with command Serial.println (soundsens); it will show you readings like 1023 (and no chance will you change with trying to adjust the potenciometer). BUT if you connect the wire to A0 (instead of D0) on the sensor you will get accurate readings. THEN you can spin the potenciometer and try to put it to 150-160 while watching its read on Serial monitor. Then when you clap your hands the readings will go above 200 and the LED will shine.

[@krproject8917]

You can do it however you want. There are no restrictions in programming and electronics.

[@micahproulx1989]

It didnt work i got the program perfect yet still whenever i apply power the led turns on. Explain if you can thanks sir.

[@toddmoore112]

@@krproject8917 what he is saying is right. Digital output from sensor means high or low. There is no in between values . You have to use Analog output of the sensor

[@toddmoore112]

@@micahproulx1989 use Analog output of the sensor

[@micahproulx1989]

@@toddmoore112 I tried that, whenever i apply power it just turns on. Thanks, Micah.

[@GetRealwithMike]

Thank you for providing language, not music.

[@DeAngeloYouKnow]

When you copy his code don't forget to change the A# pin to which ever number you plugged in your cable to. A very pivotal part that was missing.

[@zerepedits]

Thanks bro

[@DonaldIssachar]

My sound sensor circuit isn't working, the LED lights up and stays on. It doesn't light up or turn off when it is suppose to. There is no error in the code, as the Arduino IDE says there is no error. The connections appear to be good as well since I double checked. The only difference is that I am using NANO to save space time and money.

[@adityabansal9828]

Hey, idk if you still need this, but try adjusting ur threshold in the int's at the top. Everyone has a different value, but for me it was 1015. you will have to play around with it a bit, but i hope this helps.

[@stellalandi8687]

Thank you! It was really simple and helpful, you really saved my project

[@NorizhamHamsan]

Hello there, great video! Could I know threshold value of the sensor? What does it mean by 200? It is by value of hertz or decibel? or other? thanks..

[@rajchaudhary3543]

Still i am not getting how can connect the digital output pin of the sound sensor with the analog pin of the arduino.

[@humbertojunior564]

man, thank you very much after seeing your video I was able to find the error in my project and now I was able to execute everything in compliance, thank you again and continue making videos like this, a hug for you from Belém-Pará-Brazil.

[@krproject8917]

Happy to help.

[@vinivinefera563]

Hello!! Which microphone/sound sensor did you have specifically used?? Actually I have to detect whether sound exceeds a threshold value or not.... Thanks in advance!!!

[@jomac_ph]

thanks for the upload man, this was awesome!

[@Mister_UCL]

Like should the adapter be connected to the laptop or can we take out and it will still work

[@tameemullas5868]

Brother I did it in the same way as you but its not working, I copied the program and pasted it, but the LED is on it doesn't react to sound , connections are also made properly, can you give any idea for it?

[@tameemullas5868]

Plz reply me brother

[@nuelaenebechi6861]

This is amazing!! It worked perfectly for me!!

[@tameemullas5868]

How does it plz explain, my LED always on it doesn't react to sound though any idea, if you have did it?

[@ramyaramya2722]

Same

[@saggirish]

Thanks for the video. My led is always on. I tried both AO and DO from sound sensor and connected to A2. Also tried adjusting the potentiometer.

[@tameemullas5868]

Same problem

[@adityabansal9828]

Hey, idk if you still need this, but try adjusting ur threshold in the int's at the top. Everyone has a different value, but for me it was 1015. you will have to play around with it a bit, but i hope this helps. @@tameemullas5868

[@danielenocito5080]

Thanks mate, very clear and useful 👍 It would be nice if you could show also the Serial Monitor All the best

[@millanferende6723]

If wonder if this would work as an early-alarm? If you were to somehow glue this behind a lock, or a window? Is there a way to make it detect ONLY high (or only low) pitched sounds? That would be amazing for a security system...

[@priyankagoyal3885]

Its coming error in else line that is in the end :exit status Expected unqualified id before 'else'

[@dylanneve1456]

do you can do it with 3 pin's of the sound detector

[@aisyahhadiismail]

Hi, i need help. Why when i run the coding, it appear 'A2' was not declared? I copy exactly like yours. THank you.

[@michaelolifian1324]

why mine cant react to the sound? after done program it and compile it, the LED is on but cant turn off by sound. what should i do?

[@abhrogupta8840]

u need to set the potentiometer....

[@marissa.kswd22]

What if you power your arduino uno with an external battery. Would you still need to connect the plus power pin of the sound sensor to the 5V input of the arduino uno? Or would you have to connect it to another input?

[@-m7k0z7-9]

Can it be programmed to detect certain sound signal patterns that work as an encrypted "message", which then can be translated into a code that unlocks the encryption, and activate a certain command? *The device would detect any sound, but woun't initiate that specific command until it has received the proper sound signal.

[@maayankarthi9745]

'Serial' was not declared in this scope 'A2' was not declared in this scope ihave this type of error how to solve it

[@baldaiomir]

thanks! also,why did you use "serial begin9600"? i think its wasn't necessary for this project, but correct me if im wrong

[@Astrovic1]

Hey, I have one question.. I have another component connected to the Arduino, so the 5V place is already taken. How to connect the Sound Sensor + then?

[@jahdielbuenafe7071]

2 question,..1st question - what do i put in threshold to enable the LED when i say "hi" ?...2nd question - what application did you use in your computer ?,thx.

[@user-rq6bj5hb8w]

This video is very usefull for me.Thank You

[@1SGBob1]

Is there a way to use the sound output via a mini stereo cord from say a phone or computer jack and read it instead of reading it in open air via the microphone module?

[@myyoutube6978]

Can sound be recorded and sent across the house to receivers and sensor's? Once you pass them?

[@jharedpeje5048]

hey, why does the other LED of my KY-038 doesnt turn off like yours?

[@jharedpeje5048]

ive been twisting the potentiometer for a long time now

[@ayushsaini8791]

it was really helpful, and thank you for the code explanation

[@Esthicodes]

Hello, may I ask how to let my Arduino connect with Bluetooth and resonate sound?

[@sanket_chor]

Tinkercard mein sound sensor available nahi hai kaise kare

[@najiyanazrinpn101]

What should I do if I have ESP32 instead of Arduino?

[@worldofartandcraft8361]

Cam you tell some more info abt the potentiometer??plsss

[@christiansison9341]

whys my led doesnt light . all are the same with the video? thanks for the help

[@prasannajitshinde7186]

Can we use PIC18F4520 microcontroller instead of Arduino Uno..??

[@shaunsomaru4524]

You have a new sub.. Good explanation. Keep up the good work.

[@clobel55]

how did you get paid to write this. This guy is totally incomprehensible

[@bacalovalexander6870]

My LED is on but no clap...Whats the problem?

[@timothydillan4062]

is there a way where the led would turn on at a certain decible? so like: if (decible = >60) { digitalWrite(LED, HIGH); } else { digitalWrite(LED, LOW); } }

[@krproject8917]

can I see the full code?

[@anthondiy]

Nice bro more learn about this kee it up

[@leerzeichen1910]

How can i use this sound sensor for more applications with different power consumption?

[@SametKaracoban]

thank you so much my friend

[@allcontentarehere2588]

Can we connect motor instead of light

[@tetsux4172]

threshold value is for what

[@jefferyhammond1421]

How can I use this in a system that deters barking dogs? I currently have a system I wired together that runs high pitch piezo tweeter speakers on a remote but that doesn't work when I'm not home to activate it. The over the counter bark deterrents are useless. I need it to stay on for 30 seconds when it detects noise but no shut off when it detects the second bark. Any ideas?

[@gsgamer9940]

U get it ?

[@Gyaan_With_Azhar]

Who to adjust potentiometer

[@rushabh.patel14]

How to connect two sound sensors at a time and read them simultaneously?

[@msureshmudaliar9808]

Bro..., in need aurdino program code for my project work.... If possible can you provide it

[@neetukumar9159]

Great ,it's working properly

[@vinaybakle6443]

From same code can we add to switch relay to turn on light or other devices? Do you have any video of such?

[@ashlealhinkle]

Hi I’ve done exactly what you instructed but the LED is constantly on. I’ve tried adjusting the sound sensor but does not help.

[@krproject8917]

You must adjust your potentiometer. First, turn it clockwise and try. If it doesn’t work, turn it anti clockwise and try.

[@ashlealhinkle]

K&R project Thank you. I figured it out. I did not realize you had to turn it a certain direction to adjust , I also had to turn it SEVERAL times for it to work. I appreciate your response.

[@taimgangez9084]

my led light still is on it doesnt turn off please help

[@krproject8917]

You must adjust your potentiometer. First, turn it clockwise and try. If it doesn’t work, turn it anti-clockwise and try again.

[@nizamudeenmohammed8898]

Led is emitting without knocking sound. how to set Thres hold value

[@krproject8917]

First adjust the potentiometer. There are two small LEDs on the sensor. Adjust the potentiometer such that the small one turns on only while receiving an input.

[@josepadilla-dv3ld]

can i adjust the potentiomater while connected to power? @@krproject8917

[@krproject8917]

@@josepadilla-dv3ld YES

[@electroflam]

it doesn't work because he tells me « ledpin was not declared in this scop »

[@rayyanrayyan331]

How to put a buzzer instead of led

[@omrihabmimo2299]

Thank you so much , it's really work ❤️💪🇩🇿

[@Lovestoryi4173]

Please explain the mi how to do this please send the coding

[@ismaelobligacion7531]

I can't adjust the potentiometer there. The led light besides it does not turn off. Any help?

[@tadejdezelak5511]

i have the same problem :(

[@nginastera6633]

hello .. my led is on and i've tried to adjust the poteniameter but it doesnt work !! PLEASE HELP

[@krproject8917]

First, turn it clockwise and try. If it doesn’t work, turn it anti clockwise and try.

[@GauravSrivastava-xz4jy]

The LED is being continuously glowing although there is no sound stimulus. Pls help me bro.

[@kavithamanjunath8778]

Even for me

[@SeanONeill13]

That is the power led on the sound board.

[@birombah3571]

You have to connect A2 to AO on the sensor

[@ibnuhajar8098]

Kalau pake arduino nano bisa ya ?

[@kratikapatidar336]

exit status 1 Error compiling for board Arduino Uno.

[@Smiley-sm2cq]

Can I use same sound sensor with raspberry pi 3b+?

[@huntersimms6134]

I tried for about an hour adjusting the potentiometer but the light that is only supposed to go off from sound is unable to to turn off. Could something be faulty with my sound sensor? It looks like the exact same one from the tutorial. Since this is the case, the LED on the UNO is constantly turned on as well as the 2 LEDs on the sound sensor. Any advice is appreciated. I've watched the tutorial 3 times now.

[@zannelleooko1745]

Use the analogue pin of the sound sensor...not digital

[@WhiteRafiOfficial]

@@zannelleooko1745 Thank you!

[@xenotech3857]

Had the same problem!

[@KannadaAdviceTv]

Can we calculate the decibel

[@christianlawan336]

why is led always on on my project what is the problem of this? even without sound the led is always on

[@ramyaramya2722]

Yes same

[@katea9647]

do we really need to put the led on the board?

[@katea9647]

what it is for?

[@davidhugheszerobubblemodel1865]

have done exactly what you have shown and it simply does not work.

[@Bianchi77]

Creative video, thanks for sharing :)

[@ramyyadontul4126]

Whear is delay program

[@ramyyadontul4126]

Can we use nano aurdino?

[@fame_xyz]

Iski distance range Kitni hai

[@michael923977]

nice tutorial. mmm i have a trouble. in your tutorial, you find high/low sensor. if high then led on. can i get a frequency this sensor?

[@krproject8917]

Michael Indra Pramana you can print the sound sens value and see if it gives u the data.

[@krproject8917]

Serial.println(soundsens);

[@yansahkorg1876]

Hi guys, how do you make a guitar sound catcher?

[@analytics5481]

You helped me so much

[@ShivharakhYadav]

where we use this type of projects???

[@amirgedon]

How many can set led for mega? Can do separately?

[@kennethkindrich3114]

can this be done with servos? If so, how can i do this?

[@JKFCV]

Can we record sound using this sensor?

[@rodym1681]

hi how are you sorry for disturbing i copy and past the cod every thing is ok but the led is on all ways can you help me plz

[@krproject8917]

Check the small LED on the sensor. If it is turned on with giving any sound input, your potentiometer is not adjusted properly and the condition of the code is always satisfied. Adjust it such that the Sensor's led turns on only when you give some input. This will solve the problem. Sound sensor becomes problematic when the potentiometer is not adjusted properly.

[@rodym1681]

K&R project hi I adjusted and the led sound sensor is on

[@rodym1681]

The led sound sensor is on and the led output is also on also if there is sound or no sound the output led is always on

[@rodym1681]

Hello the output led is always on if (their is sound or not )

[@muhammadnaquib8814]

Why my LED doesnt light up even though the circuit is same to yours brother? HELP HELP HELP

[@niniksriwulandari3857]

Same here

[@jodethb.6727]

My sound sensor heated what does it mean?

[@sirinekari6661]

Can you please give us the circuit in proteus !!?

[@shubhrehabkolkata]

Sound sensor with sargo 180° Pogroms..... Plz send me..

[@emilianocorral5149]

Need help. I've done everything as you said, i've copied the code and connected all, same as you, But the led is everytime on, i cant find the way to make it turn off and then react to a song or sounds. What could be the problem ?

[@alaoadedapo2277]

Pls send me the code. [e-mail]

[@krproject8917]

Please try adjusting the Potentiometer. Also, check if you've delayed the program elsewhere using the "Delay" function.

[@gabriellobato781]

i have same trouble you can resolve??? how plzz

[@tadejdezelak5511]

same problem with me

[@vinivinefera563]

Hello,Your explanation is really great and it is upto the point ..I have a doubt,hope u will clear it I want to set a threshold value and based on that, if the sound exceeds the threshold (then the Arduino needs to command GSM to make alert call). Is detecting higher range sounds be done by modifying your circuit and code a bit??? For this, can you tell me what are all the requirements I need to have? Thanks in advance!!

[@krproject8917]

Yup. You can change the threshold value for different ranges. Just remember that this sound sensor cannot detect wide variety of input as it is just a small sensor for small projects.

[@niatidas6295]

Can we make a sound sensor work on a specific soundn

[@soap5912]

adjust the sensitivity by screwing the blue thing

[@stxjubayer6505]

Does it recognize voice command?

[@bayupratama7323]

Can I use gy max4466 for this project?

[@jerzyszczepanski9792]

Hi. Could anybody please post a build of Arduino decibel meter for an Airgun with shown Max last reading. Small size would be preferable, possibly Arduino Nano and Oled screen. Most Android Phone Apps don't work correctly as the phone kills the Microphone sensitivity automatically and sampling isn't fast enough. Thanks in advance. Good Video BTW.

[@Plqnes]

Pls do for RGB strip (adressable)

[@hotgames1763]

can you help me in my project

[@clobel55]

please sir , we don't understand 1/2 of what you say.

[@wireghost897]

Thanks man... saved my ass...

[@REXTERVHALROSALEJOS]

helppp mine is not working

[@Mad_Lex]

Hello Man nice job Could you show how to do it with a 5050 LED strip?

[@krproject8917]

Do you mean use 5050 led strip instead of a led?

[@Mad_Lex]

K&R project yes a RGB strip , no RGB LED , I ve tried with npn transistor but I cant light Up the 3 colors 🤔

[@krproject8917]

It maybe because the arduino’s power supply is not enough. Try by using two or more transistors.

[@Mad_Lex]

With a transistor per color is ok Thanks 👍