Hello World of Gemma Programming - Turn on an LED

turn_on_led.ino

/*
Name: LED_Controller.ino
Description: Lights an LED connected to pin D1 when Gemma v3 is powered on, and keeps the LED on.
Author: Adge Denkers / github.com/adgedenkers/
Created: October 22, 2023
Updated: October 22, 2023
(C) 2023 denkers.co 
*/

void setup() {
  pinMode(1, OUTPUT);  // Set pin D1 as an output
}

void loop() {
  digitalWrite(1, HIGH);  // Set pin D1 high to light the LED
}