diff --git a/src/main.cpp b/src/main.cpp
index cf56862..a429b2b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -7,6 +7,8 @@
 
 #include <Arduino.h>
 #include <NimBLEDevice.h>
+// ── Blue status LED on GPIO8 ──
+#define LED_PIN 8
 
 // ── Device profiles ──
 
@@ -102,6 +104,10 @@ void setup() {
     Serial.println("=============================");
     Serial.println();
 
+    // Blue LED — Loki is active
+    pinMode(LED_PIN, OUTPUT);
+    digitalWrite(LED_PIN, HIGH);
+
     NimBLEDevice::init("");
     NimBLEDevice::setOwnAddrType(BLE_OWN_ADDR_RANDOM);