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7 months ago

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int ledPin = 13;
const int buzzer = 9;

void setup() {
 
pinMode(ledPin, OUTPUT);
pinMode (buzzer, INPUT);

}

void loop() 
{
 tone(buzzer, 1000);
 digitalWrite(LED_BUILTIN, HIGH);
 delay(60000);
 digitalWrite(LED_BUILTIN, LOW);
 delay (30000);
}