Circuit Documentation

Summary of the Circuit

This circuit consists of an Arduino UNO microcontroller board and a two-pin red LED. The Arduino UNO is used to control the LED, turning it on and off at a regular interval. The LED is connected to one of the digital pins of the Arduino (D13) and to the ground (GND) pin. The microcontroller is programmed to output a high voltage to the LED, causing it to light up, and then a low voltage to turn it off, creating a blinking effect.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins Used:
  • IOREF
  • Reset
  • 3.3V
  • 5V
  • GND
  • Vin
  • A0 to A5
  • SCL
  • SDA
  • AREF
  • D13 to D0

LED: Two Pin (red)

• Description: A basic red light-emitting diode.
• Pins Used:
  • cathode
  • anode

Wiring Details

Arduino UNO

• GND is connected to the cathode of the LED.
• D13 is connected to the anode of the LED.

LED: Two Pin (red)

• cathode is connected to the GND on the Arduino UNO.
• anode is connected to the D13 on the Arduino UNO.

Documented Code

Arduino UNO Blink Code

void setup() {
  pinMode(13, OUTPUT); // Set digital pin 13 (D13) as an output
}

void loop() {
  digitalWrite(13, HIGH); // Turn the LED on (HIGH is the voltage level)
  delay(1000);            // Wait for a second (1000 milliseconds)
  digitalWrite(13, LOW);  // Turn the LED off by making the voltage LOW
  delay(1000);            // Wait for a second
}

File Name: sketch.ino

This code configures digital pin 13 (D13) on the Arduino UNO as an output to control the LED. In the loop function, the LED is turned on and off with a one-second interval between each state change.