Circuit Documentation

Summary

This circuit consists of an Arduino UNO microcontroller, a resistor, and a red LED. The Arduino UNO is programmed to blink the LED on and off with a delay of one second. The resistor is used to limit the current flowing through the LED to prevent damage.

Component List

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

Resistor

• Description: A passive electrical component that implements electrical resistance as a circuit element.
• Pins: pin1, pin2
• Properties:
  • Resistance: 200 Ohms

LED: Two Pin (red)

• Description: A light-emitting diode that emits red light.
• Pins: cathode, anode

Wiring Details

Arduino UNO

• GND: Connected to the cathode of the LED.
• D5: Connected to pin2 of the resistor.

Resistor

• pin1: Connected to the anode of the LED.
• pin2: Connected to D5 of the Arduino UNO.

LED: Two Pin (red)

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

Code Documentation

void setup() {
  // put your setup code here, to run once:
  pinMode(5, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(5, HIGH);
  delay(1000);
  digitalWrite(5, LOW);
  delay(1000);
}

Code Explanation

• setup(): This function runs once when the microcontroller is powered on or reset. It sets pin 5 as an output.
• loop(): This function runs repeatedly after the setup function. It turns the LED on by setting pin 5 to HIGH, waits for one second, turns the LED off by setting pin 5 to LOW, and waits for another second. This creates a blinking effect for the LED.