LED Blink

Solving Approach

How do you plan to solve it?

Hardware connection:

• Connect the anode (long leg) of the LED to pin 4 through a current-limiting resistor (e.g., 220Ω).
• Connect the cathode (short leg) to GND on the Arduino.

Code

/*Paste your code here*/
int LED = 4;

void setup() {
  pinMode(LED, OUTPUT); // Set pin 4 as an output
}

void loop() {
  digitalWrite(LED, HIGH); // Turn the LED on
  delay(500);              // Wait for 500 milliseconds
  digitalWrite(LED, LOW);  // Turn the LED off
  delay(500);              // Wait for 500 milliseconds
}

Output

Video

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Photo of Output

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