Activate Buzzer and LED using LDR and Arduino

[@maker101io]

Source Code: create.arduino.cc/editor/mertarduinotech/b5878d8a-2629-4414-b841-1b82bf4ea56e/preview
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[@lostisland26]

Thanks a lot for these wonderful tutorials. Me and my 12 year son are following your tutorials religiously and we are successfully able to make a buzzer led. Thanks. Keep posting new projects :)

[@Wffgcdewffkdhrhdb]

serialPrint ( Religiously || Regularly)
Syntx error //
🤣🤣

[@streetwolfsumeet9392]

your tutorials are very simple and easy to perform.... the method of making videos is excellent.. I have tried many of them and really enjoyed doing them... Thank you..! hoping to see much ahead

[@OmerYelin]

The code:
//set pin numbers
const int ledPin = 13;
const int buzzerPin = 12;
const int ldrPin = 0;
void setup() {
Serial.begin(9600);
pinMode (ledPin,OUTPUT);
pinMode (buzzerPin,OUTPUT);
pinMode (ldrPin,INPUT);
}
void loop() {
int ldrStatus = analogRead(ldrPin); //read the state of the LDR value
if (ldrStatus >= 400) {
tone(buzzerPin,100);
digitalWrite(ledPin,HIGH);
delay(100);
noTone(buzzerPin);
digitalWrite(ledPin,LOW);
delay(100);
Serial.println("----------- ALARM ACTIVATED -------------");
}
else {
noTone(buzzerPin);
digitalWrite(ledPin,LOW);
Serial.println("ALARM DEACTIVATD");
}
}

[@Time_pass9900]

How to give supply to the total setup please reply me.....

[@sivaforu2004]

Hi, Good One but I need to have same setup but with timer, so that once the timer ends the buzzer is on and LED starts blinking, one person can reset the timer once again. This I wanted to do for battery charging say after 3 hrs buzzer starts and LED blinking to indicate the charging is complete! Thanks for the idea!

[@ak_sanjaysaravannan6242]

TQ Mert Arduino for this video it was so helpful to my school project

[@buithanhtam5324]

Nice, thanks for being my asignment

[@elkapublico2884]

My LED is not blinking, the buzzer is not that loud. And you did not show what the second window you used. But thank you for the video. At least I have some new ideas with the codes.

[@danafallaha1086]

hello
please can you give information about how can make the same of this project but with birthday music

[@romeopineda567]

Excellent presentation

[@shaheenbarcha9193]

Best Channel ever..
10/10

[@ishankgoel229]

hmm...I like it but sometimes the LDR does not work properly i.e it blinks even if light is not there.Can u add a function for it before the loop and after the loop.Plz do if u can because it will improve the LDR sensor.

[@mahdeenafis6937]

same problem here

[@rese6780]

Same

[@giliardg.deoliveira5568]

If you wanna learn how Making Music with Arduino, leave a reply!If you wanna learn how Making Music with Arduino, leave a reply!

[@parzaech2327]

Giliard G. de Oliveira yes I want

[@elitedino484]

I do

[@royalhyeken6566]

How to make a timer buzzer , example when you using a blender, after the blender done at some timer we set , the buzzer rings. Pls help me by posting another tutorial video

[@electrox3019]

Nice work bro

[@Godsake2022]

Tutorial how to occupied and banned eat food from fridge although is not mine fridge and food. Thank you, everybody laughed after this prank. Thanks a lot! From me subscribe!

[@ShahidHussain-yw3dd]

Same ye hi sound ka buzzer chahiye kha milega

[@lokstnater1224]

I have a problem where the code just says ALARM DEACTIVATED and no matter what I do it just doesn't work

[@razanahmad5623]

How to connect this to an app?

[@anikettricks9858]

Best video , very very useful video 👌👌

[@michael80126]

Thank you so much! I build myself a Lighting-Trigger for my DSLR out of this. :-)

[@Stephen_10111]

Thanks it worked

[@Noah7s-f6s]

Thank you so much!!! Your videos are the best for learning new stuff with the arduino!

[@lebronirving1392]

It works! Thank you so much! I love your videos, and I subscribed! Thanks!!!

[@MrBomer213]

Hello Mert Arduino, Thank you so much for the video.
I was wondering if you can please share the Schematic of the project ??

[@vishwajeetkumar6902]

Mera kyu nahi badia se work kar raha hai....photoresistor se jab 10k resistor remove karte hai to alarm activate hota hai..otherwise always deactivate rahta hai

[@munnasengar35]

Nice video sir

[@hamzahnasirudin8036]

keep uploading very nice tutorial ive ever look

[@kvlpnd]

What is the function of 10K resistor here? Also, please zoom in while programming since for mobile users it can be hard to read the code. Thanks.

[@kvlpnd]

+Mert Arduino Tutorial & Projects Thanks for reply with understanding. Also, do not consider my suggestion as a warning. I was just suggesting that you can zoom in a particular part to enlarge it a bit. Thanks.

[@achraf3767]

il fonctionne bien mais j'aurais un problème que led est s'allumer mais j'étends pas le son

[@markvolk]

Thank you a loot. It was helpfull!!

[@ayanpramanik1730]

Led is not working... No need to connect led positive terminal with 220 ohm register,if we do that led is not blinking... Remove the 220 ohm register and directly connect the led positive terminal with pin 13, now led is blinking...

[@shaffayqazi1404]

which buzzer active or passive

[@shutdahellup69420]

Abdul Shaffay he used active buzzer in this video

[@curiosityseesomethinginter9116]

sir please;
please;
would you tell me from where i can learn Arduino programming language from "Basic to Advance" or recommend some books for it

[@Aspect-ef1oh]

great video

[@F_MuhdikhwanMohdzahferee]

Greatt👍🏻👍🏻👍🏻

[@RayllALT]

WHAT serial.begin(9600); does?

[@RayllALT]

why this line is in your code, can you please tell, will be helpful for me, thanks. :)

[@RayllALT]

ah, so 3600 is the refresh rate of serial monitor or something like that, am I right?

[@shutdahellup69420]

Rayll it sets the baudrate of your serial port for serial communication, at how many bits per second data is transfered (if i can remember correctly)

[@aheikal1715]

Thanks now i can solve my home work adruino on school

[@mirandarichardson2949]

Do you know how to create this code in scratch S4A?

[@kavishmaini3876]

good job

[@damonspamaccount5244]

Arduino: 1.8.8 (Windows 8.1), Board: "Arduino/Genuino Uno"
Sketch uses 2932 bytes (9%) of program storage space. Maximum is 32256 bytes.
Global variables use 263 bytes (12%) of dynamic memory, leaving 1785 bytes for local variables. Maximum is 2048 bytes.
An error occurred while uploading the sketch
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

[@alialkassam3786]

My code won't work without Serial.printIn what do i do?

[@gamingjedi52]

write Serial.println

[@meditationvideo5922]

Please help me this is not working

[@fendiy3948]

How many ohms does LDR have?

[@allenwalker1727]

Can I please get a block diagram of this project? I really need it.

[@techquestlabs]

Which version of arduino ide do u use

[@1981heverton]

precisa de quatros leds de cores diferentes ao acionar o botão acende um e o buzzer apita depois apaga e assim com os demais pode me ajudar

[@theoriginal1155]

can you try using a breadboard mini? thanks i need help on my school project!!

[@iqbalhadi8800]

There's no different, it's work
*I'm trying this with mini breadboard, trust me 😂

[@alexflorea43]

Mert can you make a video on how to use the serial monitor

[@anran5966]

Hi, what battery do you use? I tried 9v battery but it doesnt work..

[@akashkhare507]

Keep doing it

[@carloscastellanosgonzalez8252]

Thankyou for the information !!!

[@abhaypal6502]

Superb

[@berkayerenbulut9509]

abi bu sorunu veriyo yüklerken
Arduino:1.8.2 (Windows 7), Kart:"Arduino Nano, ATmega328"
Çalışmanız programın 2894 bayt (9 %) saklama alanını kullandı. Maksimum 30720 bayt.
Global değişkenler belleğin 265 byte kadarını (12%) kullanıyor. Yerel değişkenler için 1783 byte yer kalıyor. En fazla 2048 byte kullanılabilir.
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x20
Taslak yüklenirken bir hata oluştu
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

[@tcnhd5767]

What is the use of this please tell fast give reply to my answer anybody can tell

[@shutdahellup69420]

Tcn Narayana what the hell u mean what is the use of it?
can be used anywhere u want damnit

[@kaandagc4682]

please look my problem:
'tone' was not declared in this scope

[@Joe-xq6on]

try putting "tone"

[@leoying8131]

you need to capitalize the "t"

[@archishap2754]

can you please give the code as a download ??

[@codingvio7383]

Why not just copy it down? How lazy can you get.

[@gamingjedi52]

@@codingvio7383 it is not about laziness my friend, it just takes a lot of time to write the code

[@a.denizdeniz4553]

gerçekten çok işime yaradı teşekkür ederim

[@berat761]

Teşekkürler Mert Çok yardımcı oldu (ciddiyim)

[@soteropolitano3413]

Muito grato🤘🏽

[@Vaiinz]

Please make a ardunio tutorial video about Buzzer with Sound sensor

[@sunnysahu8372]

Mujhe aise he chote project ke bare me jaana hai aur bana mai elctronic me repairng sikh raha hu

[@GamingMr101]

Hi sir. Why does the ldr does not work?

[@Gen_Kael]

Aaaand @4:30 is where I got left in the dust.

[@YohnPaul]

i tried and the buzzer rings but the led does not glow....what might have gone wrong :-(
plz hlp and am using an arduino mega

[@YohnPaul]

The led is brand new...jus recieved the kit recently...maybe the code us to be modified...thanks

[@ipodmaurits]

Yohn Paul check if your led too is connected the good way. don't forget the resistor too. You can test your leds with a simple blink sketch. Make sure too that the led position in your arduino code is the same as on your board

[@YohnPaul]

Maurits Muis thanks.....i configured that there was an error on my connections,all works fine now

[@rafi6170]

is tone need a library from manage library

[@tamarwebmail5433]

I wrote noTone (buzzerPin) but it doesnt work. I use the arduino duemilanova..

[@shutdahellup69420]

Tamar Webmail make sure the letters are of same size

[@aritroshome60]

Superb but......................give the code as a download link

[@shutdahellup69420]

Aritro Shome why ghad damnit write yo own, try to write without seeing his code... dass gonna improve vo programming skills imho

[@LEON-zm5fc]

my name is kaknut

[@yusufkenan9683]

Koda artık ulaşamayıyorum

[@CreativeDesk]

Music name?

[@codingtimes3199]

OK but you haven't thé code un your PC? on the vidéo thé write ils vert small.
you van make the photo ans sens me by facebook.

[@faisaltaher851]

I cannot get it to stop buzzing even after its dark

[@shutdahellup69420]

faisal taher lol check your if statement if its correct or try to increase the value from 400 to 600 maybe?

[@alonhermoni1291]

anyone else getting expected ' ' or ' ' before 'void' ?

[@oswaldopalafox1582]

😮

[@herhangibiremir]

abi esp8266 da olurmu

[@lobstah996]

''ledPin'' was not declared at this scope

[@Joe-xq6on]

const int ledPin = 13;
const int buzzerPin = 12;
const int ldrPin = A0;
void setup () {
Serial.begin(9600);
pinMode(ledPin, OUTPUT);
pinMode(buzzerPin, OUTPUT);
pinMode(ldrPin, INPUT);
}
void loop() {
int ldrStatus = analogRead(ldrPin);
if (ldrStatus >= 400) {
tone(buzzerPin, 100);
digitalWrite(ledPin, HIGH);
delay(100);
noTone(buzzerPin);
digitalWrite(ledPin, LOW);
delay(100);
Serial.println("----------- ALARM ACTIVATED -----------");
}
else {
noTone(buzzerPin);
digitalWrite(ledPin, LOW);
Serial.println("ALARM DEACTIVATED");
}
}

[@yunuscanozkan5357]

kanka türkçe video at

[@sunitachauhan2471]

I want all the products in 2 days can you supply me

[@beenavaishy2516]

Fake video. I have tried it many times but it doesn't work. Please let me know that where I am wrong.

[@tonyinfo1016]

supère la vidéo !

[@danujayasaputro7861]

it's not working, why?

[@AliceMerciadri]

I LOVE YOU.

[@hamzahzroglu3121]

insan kodu da bırakır ama

[@codingtimes3199]

Please van you vive me your arduino code d'or this projet

[@sisirakumara2053]

Mert Arduino Tutorial & Projects

[@elitedino484]

Mert Arduino and Tech it doesn't work for me

[@janindubahagya3413]

superm$$$$

[@Itsyaboy_Jeff]

epic

[@karacaveli4811]

Abi helal olsun

[@nepnaeemselectronicspakist1824]

Whst is this nonsense