Activate Buzzer and LED using LDR and Arduino

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.
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kanka türkçe video at

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...

abi esp8266 da olurmu

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

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

Thankyou for the information !!!

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

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.

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

is tone need a library from manage library

my name is kaknut

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

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

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

Best video , very very useful video 👌👌

Koda artık ulaşamayıyorum

superm$$$$

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");
}
}

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

it's not working, why?

epic

Nice video sir

Keep doing it

Thank you a loot. It was helpfull!!

Teşekkürler Mert Çok yardımcı oldu (ciddiyim)

Valla mierda

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

great video

Nice work bro

törkişller kendilerini belli etsin

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

Muito grato🤘🏽

Excellent presentation

Whst is this nonsense

Please help me this is not working

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

Same ye hi sound ka buzzer chahiye kha milega

How to connect this to an app?

didnt work mf

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

😮

Nice, thanks for being my asignment

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

Greatt👍🏻👍🏻👍🏻

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!

Thanks it worked

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!