Project 2 Buzzer Buzzer Ring

Description

In Project 2, we are going to show you how does a buzzer working on Arduino UNO R4 wifi.

Setting Up a Buzzer Circuit with Arduino UNO R4 WiFi

Materials Needed:

• 2 x Buzzers
• 6 x Jumper wires (also known as DuPont wires)
• 1 x Arduino UNO R4 WiFi
• 1 x 52Pi Experiment Platform
• 1 x USB-C programming cable

Steps:

Prepare Your Workspace:

- Ensure your Arduino UNO R4 WiFi is powered off.
- Lay out your buzzers and jumper wires for easy access.

Identify Buzzer Pins:

- Each buzzer typically has two pins: one for the positive voltage and one for the ground.
- Mark or remember which pin is which for each buzzer.

Connect the Buzzers to the Arduino:

• Take a jumper wire and connect one pin of the first buzzer to a digital output pin on the Arduino (e.g., pin 8).
• Connect the other pin of the first buzzer to one of the GND (ground) pins on the Arduino.
• Repeat the process for the second buzzer, connecting it to another digital output pin (e.g., pin 9) and a GND pin.

Secure the Connections:

• Ensure all connections are secure to prevent loose connections.

Upload the Code:

• Write a simple program in the Arduino IDE to make the buzzers sound. Here’s an example code snippet:
• Upload the code to your Arduino UNO R4 WiFi.

void setup() {
  // Define the pins where the buzzers are connected
  pinMode(8, OUTPUT); // Replace 8 with the pin number you used for the first buzzer
  pinMode(9, OUTPUT); // Replace 9 with the pin number you used for the second buzzer
}

void loop() {
  // Make the first buzzer sound
  digitalWrite(8, HIGH);
  delay(1000); // Wait for a second
  digitalWrite(8, LOW);

  // Make the second buzzer sound
  digitalWrite(9, HIGH);
  delay(1000); // Wait for a second
  digitalWrite(9, LOW);
}

Upload Sketch

Power On and Test:

- Power on your Arduino UNO R4 WiFi.
- Observe the buzzers sounding in sequence as programmed.

Notes:

• Ensure you connect the buzzers to the correct digital output pins on the Arduino to avoid damaging the components.
• Always double-check your connections before powering on the Arduino to prevent short circuits.
• You can modify the delay() function in the code to change the duration of the buzzer sounds.
• For a more complex sound pattern, you can add more buzzers or use the tone() function to play tones at specific frequencies.

Demo Code Download

• Demo Code Sketch: Download

Demo Video: