#include void setup() { Serial.begin(115200); // Initialize Wi-Fi WiFi.mode(WIFI_STA); WiFi.begin(); // Wait for connection while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } // Print MAC address Serial.println(""); Serial.println("Connected to WiFi"); Serial.print("MAC Address: "); Serial.println(WiFi.macAddress()); } void loop() { // Empty loop }