ESP32の内蔵LEDを点滅

1// ─────────────────────────────────────────
2//   BlueGrays · bluegrays.com
3//   ESP32 Built-in LED Blink
4// ─────────────────────────────────────────
5// Blinks the built-in LED on the ESP32 DevKit V1 board every 1 s. No
6// external components are needed.
7//
8// Pins:
9//   GPIO 2 -> Built-in LED (on the board)
10
11const int BUILTIN_LED_PIN = 2;   // Built-in LED on the DevKit V1
12
13void setup() {
14  pinMode(BUILTIN_LED_PIN, OUTPUT);
15}
16
17void loop() {
18  digitalWrite(BUILTIN_LED_PIN, HIGH);  // Turn the LED on
19  delay(1000);                          // Wait 1 s
20  digitalWrite(BUILTIN_LED_PIN, LOW);   // Turn the LED off
21  delay(1000);
22}
23