diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index 9ea09f1c..12d91b97 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -3213,7 +3213,12 @@ void payload_OK_only()
     Serial1.print(" ");
     Serial1.print(Sensor3,2);    
     Serial1.print(" MQ ");
-    Serial1.println(sensorValue); //,0);  		    
+    Serial1.println(sensorValue); //,0);  
+	    
+	    
+    blink(50);
+    delay(50);
+    blink(50);
 	    
     if (mpuPresent) 	 {     
     float rotation = sqrt(mpu6050.getGyroX()*mpu6050.getGyroX() + mpu6050.getGyroY()*mpu6050.getGyroY() + mpu6050.getGyroZ()*mpu6050.getGyroZ());