Arduino buzzer code sequence not triggering

Question

I have a problem with my arduino buzzer: the code should be doing the following: I have a security system where in order to open the door you have to enter a 4 digit code from the remote. If the code is correct the door opens. if not you can try again. You have 3 chances to try to enter the pin before an alarm goes on. here comes the problem: the alarms code triggers but the buzzer isn't making any sound.

here is the code for the alarm sound:

if (tryCount>=3) { // if the pin is wrong 3 times we sound an alarm
    Serial.println("got in alarm");
    while(true) {
        Serial.println("got in while");
        noTone(buzzer);
        tone(buzzer,100,300);
        delay(300);
        noTone(buzzer);
        tone(buzzer,1000,300);
        delay(300);
    }
}

here is the proof the alarm code triggers:

here is the full code: https://create.arduino.cc/editor/mihimbc/8ec2fe30-d812-45cc-b0ae-850b437eb05b/preview

and here is the hardware schematics:

score 1 · Accepted Answer · answered May 15 '21 at 19:05

1

The problem was with the buzzer, somehow was a faulty buzzer, I've managed to replace it and the problem was solved. Thanks everybody for your time trying to help me!

answered May 15 '21 at 19:05

mihalca bogdan

31
3

Arduino buzzer code sequence not triggering

1 Answers1