fixed the broken fade out when the watchdog kicks in

analog_system_monitor_arduino/analog_system_monitor_arduino.ino

@@ -183,7 +183,9 @@ void loop() {
     }
   }
 
-  // -------- Slew-rate limiting (smooth 1-second transitions) --------
+  // -------- Slew-rate limiting (only when NOT in watchdog mode) --------
+  if (millis() - lastPacketTime <= watchdogTimeout) {
+
     unsigned long now = millis();
     float progress = (float)(now - slewStartTime) / (float)slewDuration;
     if (progress > 1.0f) progress = 1.0f;
@@ -197,6 +199,7 @@ void loop() {
 
       ledcWrite(pwmPins[ch], duty);
     }
+  }
 
   // -------- Watchdog fade-to-zero (UDP-based) --------
   if (millis() - lastPacketTime > watchdogTimeout) {