Circuit Documentation

Summary

This circuit consists of an Arduino UNO microcontroller, a red LED, and a resistor. The Arduino UNO controls the LED, making it blink with a delay of 1.5 seconds. 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

LED: Two Pin (red)

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

Resistor

• Description: A resistor with a resistance of 200 Ohms.
• Pins: pin1, pin2
• Properties:
  • Resistance: 200 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 Documentation

Arduino UNO Code

#define led_pin 8

void setup() {
    pinMode(led_pin, OUTPUT);
}

void loop() {
    digitalWrite(led_pin, HIGH);
    delay(1500);
    digitalWrite(led_pin, LOW);
    delay(1500);
}

This code defines the pin connected to the LED (led_pin) as pin 8. In the setup function, the pin mode is set to OUTPUT. The loop function then continuously turns the LED on and off with a delay of 1.5 seconds between each state change.