diff --git a/doorbell/klingel_sender_nano_serial/klingel_sender_nano_serial.ino b/doorbell/klingel_sender_nano_serial/klingel_sender_nano_serial.ino
index 115b987..9bf6787 100644
--- a/doorbell/klingel_sender_nano_serial/klingel_sender_nano_serial.ino
+++ b/doorbell/klingel_sender_nano_serial/klingel_sender_nano_serial.ino
@@ -14,7 +14,8 @@
 
 const int ledPin = LED_BUILTIN;
 const int buttonPin = 2; // Button connected to D2
-const int flare_threshold = 60;
+const int flare_threshold = 200;
+const int ring_delay = 250;
 
 bool active = false;
 
@@ -36,7 +37,7 @@ void loop() {
       Serial.println("RING");
       digitalWrite(ledPin, HIGH);
       active = true;
-      delay(250);
+      delay(ring_delay);
     }
     else if (val == LOW) {
       Serial.print("flare (<");