diff --git a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/Pyr0_Piezo_Sensor_V2.x.x.cpp b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/Pyr0_Piezo_Sensor_V2.x.x.cpp
index efbbcc2..a162727 100644
--- a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/Pyr0_Piezo_Sensor_V2.x.x.cpp
+++ b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/Pyr0_Piezo_Sensor_V2.x.x.cpp
@@ -183,11 +183,11 @@ void loop() {
     if (BlinkCount > 0) {
       BlinkState = !BlinkState;
       digitalWriteFast(ERR_LED, BlinkState);
-      digitalWriteFast(TRG_OUT, BlinkState);
+//      digitalWriteFast(TRG_OUT, BlinkState);
       --BlinkCount;
-    } else {
+//    } else {
       // Check for error state
-      checkError();
+//      checkError();
     }
 
     // Print state if debug is on
diff --git a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/pP_function.h b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/pP_function.h
index dd2fd54..7c66426 100644
--- a/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/pP_function.h
+++ b/firmware/AVR-Source/Pyr0_Piezo_Sensor_v2.x.x/src/pP_function.h
@@ -25,12 +25,19 @@ int inline analogReadFast(byte ADCpin)
 
 /*------------------------------------------------*/
 
+void doubleFlash() {
+    BlinkCount = 4 ;
+}
+
+/*------------------------------------------------*/
+
 void pulse() {
   digitalWriteFast(TRG_OUT, LOGIC);
   sensorHReading = 1;
   delay(TRG_DUR);
   digitalWriteFast(TRG_OUT, !LOGIC);
   Serial.println("Trig'd!");
+  doubleFlash();
 }
 
 /*------------------------------------------------*/
@@ -164,16 +171,16 @@ void adjustGain() {
 
 /*------------------------------------------------*/
 
-void checkError () {
-  if (ERR_STATE == 1) {
-    digitalWriteFast(ERR_LED, BlinkState);
-    BlinkState = !BlinkState;
-  }
-  else if (ERR_STATE == 0) {
-    BlinkState = LOW;
-    digitalWriteFast(ERR_LED, BlinkState);
-  }
-}
+//void checkError () {
+//  if (ERR_STATE == 1) {
+//    digitalWriteFast(ERR_LED, BlinkState);
+//    BlinkState = !BlinkState;
+//  }
+//  else if (ERR_STATE == 0) {
+//    BlinkState = LOW;
+//    digitalWriteFast(ERR_LED, BlinkState);
+//  }
+//}
 
 /*------------------------------------------------*/