How can I control an LED with Arduino?

How can I control an LED with Arduino?

You can control an LED with Arduino by connecting it to a digital pin and using the digitalWrite() function.

What components do I need for this?

You'll need an Arduino board, an LED, a resistor (220 ohms), and some jumper wires.

Can you provide a simple code example?

Sure! Here's a simple code snippet:

int ledPin = 9;

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

void loop() {
  digitalWrite(ledPin, HIGH);   // turn the LED on
  delay(1000);                  // wait for a second
  digitalWrite(ledPin, LOW);    // turn the LED off
  delay(1000);                  // wait for a second
}

How do I upload this code to the Arduino?

You can upload the code using the Arduino IDE. Connect your Arduino to your computer, select the correct board and port, then click the upload button.