diff --git a/src/main.cpp b/src/main.cpp
index e7e3a04..145f502 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -18,7 +18,7 @@ Scheduler scheduler;
 
 constexpr int ONE_WIRE_BUS = D2;
 constexpr int VALVE_PIN = D5;
-constexpr int ALARM_PIN = LED_BUILTIN; // TODO: change to separate pin
+constexpr int ALARM_PIN = D7;
 
 OneWire one_wire(ONE_WIRE_BUS);
 DallasTemperature sensors(&one_wire);
@@ -164,13 +164,17 @@ sensors.requestTemperatures();
 
 static void SignalAlarm()
 {
-    for (int i = 0; i < 3; ++i)
-    {
-        digitalWrite(ALARM_PIN, LOW);
-        delay(100);
-        digitalWrite(ALARM_PIN, HIGH);
-        delay(100);
-    }
+    // for (int i = 0; i < 3; ++i)
+    // {
+    //     digitalWrite(ALARM_PIN, LOW);
+    //     delay(100);
+    //     digitalWrite(ALARM_PIN, HIGH);
+    //     delay(100);
+    // }
+
+    digitalWrite(ALARM_PIN, LOW);
+    delay(1000);
+    digitalWrite(ALARM_PIN, HIGH);
 }
 
 static void SignalAlarmIfNeeded()