diff --git a/src/wifimac.ino b/src/wifimac.ino
new file mode 100644
index 0000000..3a668f3
--- /dev/null
+++ b/src/wifimac.ino
@@ -0,0 +1,46 @@
+#include <M5StickCPlus.h>
+#include <WiFi.h>
+
+const char *ssid = "miura2g";
+const char *password = "jikken2022";
+
+void setup()
+{
+    M5.begin();
+    M5.Lcd.setRotation(3);
+    M5.Lcd.fillScreen(ORANGE);
+    M5.Lcd.setCursor(10, 50, 4);
+
+    WiFi.begin(ssid, password); // 接続開始
+    while (WiFi.status() != WL_CONNECTED)
+    { // 接続中...
+        M5.Beep.tone(2000);
+        delay(200);
+        M5.Beep.mute();
+        delay(300);
+        M5.Lcd.print(".");
+    }
+    // 接続完了！！
+    M5.Beep.tone(4000);
+    M5.Lcd.fillScreen(GREEN);
+    M5.Lcd.setCursor(0, 30, 4);
+    M5.Lcd.setTextColor(BLACK, GREEN);
+    M5.Lcd.print("  Wifi Connected!\n  ");
+    String gotip = WiFi.localIP().toString(); // m5デバイスのIPアドレス
+    M5.Lcd.println(gotip);
+
+    // MACアドレスを表示
+    uint8_t mac[6];
+    char macchar[100];
+    esp_read_mac(mac, ESP_MAC_WIFI_STA);
+    sprintf(macchar, "  %02X:%02X:%02X:%02X:%02X:%02X", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+    String macstr = macchar;
+    M5.Lcd.println(macstr);
+
+    delay(1500);
+    M5.Beep.mute();
+}
+
+void loop()
+{
+}
\ No newline at end of file