Circuit Documentation

Summary

This circuit consists of an Arduino UNO microcontroller, three LEDs (red, green, and yellow), and a buzzer. The Arduino UNO controls the LEDs and the buzzer, turning them on and off in a sequence. The LEDs are connected to digital pins D13, D12, and D11, while the buzzer is connected to digital pin D10.

Component List

1. Arduino UNO

   • Description: A microcontroller board based on the ATmega328P.
   • Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

2. LED: Two Pin (red)

   • Description: A red LED with two pins.
   • Pins: cathode, anode

3. LED: Two Pin (green)

   • Description: A green LED with two pins.
   • Pins: cathode, anode

4. LED: Two Pin (yellow)

   • Description: A yellow LED with two pins.
   • Pins: cathode, anode

5. Buzzer

   • Description: A simple buzzer with two pins.
   • Pins: PIN, GND

Wiring Details

Arduino UNO

• 5V: Not connected to any component.
• GND: Connected to the GND pin of the buzzer, and the cathode pins of the red, green, and yellow LEDs.
• D13: Connected to the anode pin of the red LED.
• D12: Connected to the anode pin of the yellow LED.
• D11: Connected to the anode pin of the green LED.
• D10: Connected to the PIN of the buzzer.

LED: Two Pin (red)

• cathode: Connected to the GND pin of the Arduino UNO.
• anode: Connected to the D13 pin of the Arduino UNO.

LED: Two Pin (green)

• cathode: Connected to the GND pin of the Arduino UNO.
• anode: Connected to the D11 pin of the Arduino UNO.

LED: Two Pin (yellow)

• cathode: Connected to the GND pin of the Arduino UNO.
• anode: Connected to the D12 pin of the Arduino UNO.

Buzzer

• PIN: Connected to the D10 pin of the Arduino UNO.
• GND: Connected to the GND pin of the Arduino UNO.

Code Documentation

Arduino UNO Code

void setup() {
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT); // Buzzer pin
}

void loop() {
  digitalWrite(13, HIGH);
  delay(5000);
  digitalWrite(13, LOW);
  digitalWrite(10, LOW); // Turn off buzzer
  delay(10);

  digitalWrite(12, HIGH);
  delay(5000);
  digitalWrite(12, LOW);
  delay(10);

  digitalWrite(11, HIGH);
  digitalWrite(10, HIGH); // Turn on buzzer
  delay(5000);
  digitalWrite(11, LOW);
  digitalWrite(10, LOW); // Turn off buzzer
  delay(10);
}

This code initializes the digital pins D13, D12, D11, and D10 as output pins. In the loop function, it turns on the red LED for 5 seconds, then turns it off. Next, it turns on the yellow LED for 5 seconds, then turns it off. Finally, it turns on the green LED and the buzzer for 5 seconds, then turns them off. This sequence repeats indefinitely.