ESP32 Learn

Blink LED & Serial Monitor

2025-09-20 路 ~1 min read
Table of contents

Circuit

  • Onboard LED (GPIO2) or external LED + 220惟.

Code

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#include <Arduino.h>

const int LED = 2;
void setup() {
  pinMode(LED, OUTPUT);
  Serial.begin(115200);
}
void loop() {
  digitalWrite(LED, HIGH);
  delay(500);
  digitalWrite(LED, LOW);
  delay(500);
}

馃敄 #gpio #serial #blink