Unit 9: Bad Vibrations

Code for Sketch One:


 
const int piezoPin = A0;    // Pin for the piezo sensor
const int buzzerPin = 9;    // Pin for the active buzzer
 
// Vibration threshold
const int threshold = 250;
 
// Alarm duration
const int alarmDuration = 1000; // 3 seconds
 
void setup() {
  pinMode(buzzerPin, OUTPUT);
  Serial.begin(9600); // Begin serial communication for debugging
}
 
void loop() {
  int piezoValue = analogRead(piezoPin);
  Serial.println(piezoValue); // Debugging: Print piezo value
 
  if (piezoValue > threshold) {
    triggerAlarm();
  }
 
  // Add a small delay to avoid overwhelming the serial output
  delay(100);
}
 
void triggerAlarm() {
  // Sound the alarm
  digitalWrite(buzzerPin, HIGH);
  delay(alarmDuration);
  digitalWrite(buzzerPin, LOW);
}

Unit 9: Bad Vibrations

Code for Sketch One:

Notes: