Piezoelectric Vibration Sensor Module

Description

Piezoelectric Vibration Sensor Module

This module detects mechanical vibration and shock using a piezoelectric ceramic element, converting mechanical stress into an electrical signal. The analog output can be read by a microcontroller to observe vibration changes.

Specifications listed

• Operating voltage: 3.3–5 V DC
• Nominal current: <1 mA
• Signal: analog output
• Dimensions: 30 × 23 × 17 mm
• Weight: 5 g
• Operating temperature: −10 to +70 °C

How it works

Pressure or vibration on the piezoelectric element produces a voltage. The output is useful for detecting events, but it is not a calibrated measurement of vibration amplitude or force.

Applications listed

• Alarm and security systems
• Machine-condition monitoring
• Shock and vibration detection
• Musical instruments
• Portable devices

Pinout

• + (VCC): supply, 3.3–5 V
• − (GND): ground
• S (Signal): analog output

Arduino Uno connections

Connect VCC to Arduino 5 V, GND to ground and S to an analog input such as A0. Ensure the output voltage stays within the controller’s input limits.

Basic Arduino example

#define VIBRATION_PIN A0


void setup() {
  Serial.begin(9600);
}


void loop() {
  int sensorValue = analogRead(VIBRATION_PIN);
  Serial.println(sensorValue);
  delay(100);
}

What the basic code does

It reads the analog sensor value and prints it to the Serial Monitor so vibration readings can be observed.

Parts for the basic example

• Arduino Uno
• Piezoelectric vibration sensor module
• Jumper wires

Basic code overview

• Initializes serial communication.
• Reads the analog sensor value and displays it in the Serial Monitor.

Basic wiring

• VCC: Arduino 5 V
• GND: Arduino GND
• S (Signal): Arduino A0

Advanced Arduino example: LED alert

#define VIBRATION_PIN A0
#define LED_PIN 13


void setup() {
  pinMode(LED_PIN, OUTPUT);
  Serial.begin(9600);
}


void loop() {
  int sensorValue = analogRead(VIBRATION_PIN);
  Serial.println(sensorValue);
  if(sensorValue > 500) {
    digitalWrite(LED_PIN, HIGH); // Allumer la LED si la vibration est détectée
  } else {
    digitalWrite(LED_PIN, LOW); // Éteindre la LED si aucune vibration n'est détectée
  }
  delay(100);
}

What the advanced code does

It prints the sensor reading and turns an LED on when the reading exceeds 500; otherwise it turns the LED off. The threshold is an example and may need calibration for the module, mounting and environment.

Parts for the advanced example

• Arduino Uno
• Piezoelectric vibration sensor module
• LED
• 220 Ω resistor
• Jumper wires

Advanced code overview

• Configures the LED pin as an output and starts serial communication.
• Reads and prints the analog sensor value.
• Compares the reading with a threshold and switches the LED accordingly.

Advanced wiring

• VCC: Arduino 5 V
• GND: Arduino GND
• S (Signal): Arduino A0
• LED: Arduino D13 through a 220 Ω resistor