Project 1.2.3: Piezo Beep Code Generator

Description	This project shows how to play alternating high and low frequency tones on a piezo buzzer using the tone() function to generate different sound patterns.
Use case	This project can be used in sound notification systems, alarm devices, and audio feedback applications.

Components (Things You will need)

Building the circuit

Things Needed:

• Arduino Uno = 1
• Arduino USB cable = 1
• Buzzer = 1
• Jumper wires

Mounting the component on the breadboard

Step 1: Place the buzzer on the breadboard. The longer pin is the positive pin.

NB: Make sure you identify the correct pin connections for the component.

WIRING THE CIRCUIT

Step 2: Connect the component to the appropriate pins on the Arduino Uno using jumper wires. Using the red jumper wire, connect the positive pin to digital pin 3 on the Arduino Uno board.

Step 3: Connect the negative pin to the GND on the Arduino Uno board using the blue jumper wire.

Make sure to connect the Arduino USB cable to the Arduino board.

PROGRAMMING

Step 1: Open your Arduino IDE. See how to set up here: Getting Started.

Step 2: Type int buzzerPin = 3;

NB: Declare the buzzer pin

Step 3: Type pinMode(buzzerPin, OUTPUT); inside the void setup(){} function.

NB: Set buzzer pin as output

Step 4: Type tone(buzzerPin, 1000); inside the void loop(){} function.

NB: Play a 1000 Hz tone

Step 5: Type delay(500);

NB: Wait for 500ms

Step 6: Type noTone(buzzerPin);

NB: Stop the tone

Step 7: Type delay(500);

NB: Wait for 500ms

Step 8: Type tone(buzzerPin, 2000);

NB: Play a 2000 Hz tone

Step 9: Type delay(500);

NB: Wait for 500ms

Step 10: Type noTone(buzzerPin);

NB: Stop the tone

Step 11: Type delay(500);

NB: Wait for 500ms

Step 4: Save your code. See the Getting Started section

Step 5: Select the Arduino board and port. See the Getting Started section

Step 6: Upload your code.

Step 7: Open the Serial Monitor (Tools > Serial Monitor) to view the output.

CONCLUSION

This project helps learners understand how to interface with Buzzer using Arduino. It introduces essential concepts in electronic circuits and embedded system programming.