// Simple ESP32 Blink Test // Tests basic GPIO functionality #define LED_PIN 2 // Built-in LED on most ESP32 dev boards void setup() { pinMode(LED_PIN, OUTPUT); Serial.begin(115200); Serial.println("ESP32 Blink Test Started"); } void loop() { digitalWrite(LED_PIN, HIGH); Serial.println("LED ON"); delay(1000); digitalWrite(LED_PIN, LOW); Serial.println("LED OFF"); delay(1000); }