Circuit Documentation

Summary of the Circuit

This circuit consists of an Arduino UNO microcontroller, a red two-pin LED, and a resistor. The purpose of the circuit is to illuminate the LED using a digital output from the Arduino UNO. The LED is connected to the Arduino with a series resistor to limit the current and protect the LED from damage. The Arduino's digital pin 8 is configured as an output to control the LED. The ground pin of the Arduino is used to complete the circuit.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins Used: GND, D8
• Purpose: Acts as the control unit for the LED, providing power and signal.

LED: Two Pin (red)

• Description: A basic red light-emitting diode.
• Pins Used: cathode, anode
• Purpose: Emits light when powered.

Resistor

• Description: A passive two-terminal electrical component that implements electrical resistance as a circuit element.
• Value: 200 Ohms
• Pins Used: pin1, pin2
• Purpose: Limits the current flowing through the LED to prevent damage.

Wiring Details

Arduino UNO

• GND is connected to the cathode of the LED.
• D8 is connected to pin2 of the Resistor.

LED: Two Pin (red)

• Cathode is connected to the GND of the Arduino UNO.
• Anode is connected to pin1 of the Resistor.

Resistor

• Pin1 is connected to the anode of the LED.
• Pin2 is connected to D8 of the Arduino UNO.

Documented Code

Arduino UNO Code (sketch.ino)

void setup() {
  pinMode(8, OUTPUT); // Set digital pin 8 as an output
}

void loop() {
  // Main code to run repeatedly:
  digitalWrite(8, HIGH); // Turn on the LED connected to pin 8
}

File Name: sketch.ino

Description: This code configures pin 8 of the Arduino UNO as an output and then continuously sets it to HIGH, which turns on the connected LED. The loop function runs indefinitely, keeping the LED illuminated.