const int LED_PIN=15;
void setup() {
Serial.begin(115200);
Serial.println("Hello, ESP32!");
pinMode(LED_PIN, OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
// turn the LED on (HIGH is the voltage level)
digitalWrite(LED_PIN, HIGH);
delay(500);
// turn the LED off by making the voltage LOW
digitalWrite(LED_PIN, LOW);
delay(500);
}