Circuit Documentation

Summary

This document describes a simple circuit involving an Arduino UNO, a red LED, and a resistor. The LED is connected to the Arduino UNO and is programmed to blink with a delay of 1000 milliseconds (1 second) between turning on and off.

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 light-emitting diode with two pins: cathode and anode.
   • Pins: cathode, anode

3. Resistor

   • Description: A resistor with a resistance of 220 Ohms.
   • Pins: pin1, pin2
   • Properties:
     • Resistance: 220 Ohms

Wiring Details

Arduino UNO

• GND: Connected to the cathode of the LED.
• D8: Connected to pin2 of the resistor.

LED: Two Pin (red)

• cathode: Connected to GND of the Arduino UNO.
• anode: Connected to pin1 of the resistor.

Resistor

• pin1: Connected to the anode of the LED.
• pin2: Connected to D8 of the Arduino UNO.

Code

/*
 * This Arduino sketch is designed to control a simple circuit where an LED is
 * connected to pin D8 of an Arduino UNO. The LED will blink with a delay of
 * 1000 milliseconds (1 second) between turning on and off.
 */

void setup() {
  // Initialize digital pin D8 as an output.
  pinMode(8, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  // Turn the LED on (HIGH is the voltage level)
  digitalWrite(8, HIGH);
  // Wait for a second
  delay(1000);
  Serial.println("LED is in ON state");
  // Turn the LED off by making the voltage LOW
  digitalWrite(8, LOW);
  // Wait for a second
  delay(1000);
  Serial.println("LED is in OFF state");
}

This code initializes pin D8 as an output and toggles the LED state with a 1-second delay between each toggle. The state of the LED is also printed to the serial monitor.