Sound loop doesnt work

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I'm testing my sound sensor with a piezo buzzer and everytime I plug it into pin 11 while it's grounded it's just keeps buzzing.
I'm new to this so I'm not sure how to identify problems in coding
This is the code I used: (I also followed a youtube video)

const int buz=11; // ledpin and soundpin are not changed throughout the process
const int sound=A5;
const int threshold=100; // sets threshold value for sound sensor
void setup() {
  

pinMode(buz,OUTPUT);
pinMode(sound,INPUT);
}
void loop() {
int soundsens=analogRead(sound); // reads analog data from sound sensor
if (soundsens>=threshold) {
digitalWrite(buz,HIGH); //turns buzzer on
delay(1000);
}
else{
digitalWrite(buz,LOW);
}
}

What I have tried:

I tried setting the threshold higher

Posted 5-Mar-22 5:10am

User 15353838

Updated 5-Mar-22 7:28am

KarstenK

v3

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Richard MacCutchan 5-Mar-22 11:29am

What is the value returned in soundsens?

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honey the codewitch · Answer 1 · 2022-03-05T06:23:00

First, try connecting the buzzer to the circuit, and upload an empty project. Do you get sound?

Next, eliminate the senor reading. Eliminate the HIGH call. Do you get sound?

Next, with the high call eliminated, start Serial writing your sensor values to make sure they are the result you expect.

This is the kind of thing you should be trying so you can come to the forum with some more information. It will help you get answers more quickly.

OriginalGriff · Answer 2 · 2022-03-05T05:52:00

Calling a function "loop" does not mean that is does any looping: it executes once and once only. So if it turns it on to start with, it stays turned on.

But ... your code doesn't even call it, or have any entry point code shown - so at a guess you app starts with an empty main function and exits immediately. So if the buzzer is on when the app starts, it stays on ... forever.

Throw youtube tutorials in the bin: they are nearly all completely useless as they miss out far too much ...

Sound loop doesnt work

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