diff --git a/LoRaWAN/App/lora_app.c b/LoRaWAN/App/lora_app.c
index f201a04..e81639d 100644
--- a/LoRaWAN/App/lora_app.c
+++ b/LoRaWAN/App/lora_app.c
@@ -424,6 +424,7 @@ static UTIL_TIMER_Object_t JoinLedTimer;
 /* Exported functions ---------------------------------------------------------*/
 /* USER CODE BEGIN EF */
 extern volatile uint8_t ToF_EventDetected;
+SysTime_t sts_pir_start_time, sts_pir_duration_check_time;
 /* USER CODE END EF */
 
 void LoRaWAN_Init(void)
@@ -656,6 +657,19 @@ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
 #ifdef STS_T6
     case  PIR_Pin:
     	sts_pir_state= PIR_STATE;
+    	// SysTime_t sts_pir_start_time, sts_pir_duration_check_time;
+    	if (sts_pir_state == 1) {
+    		sts_pir_start_time = SysTimeGet();
+
+    	} else if (sts_pir_state ==0) {
+    		sts_pir_duration_check_time = SysTimeGet();
+    		if ((sts_pir_duration_check_time.Seconds - sts_pir_start_time.Seconds) < 5)
+    		{
+    			sts_pir_state = 1;
+    		} else {
+    			sts_pir_state = 0;
+    		}
+    	}
     	  // HAL_Delay(50);
     	  //__HAL_GPIO_EXTI_CLEAR_IT(GPIO_Pin);
     	// APP_LOG(TS_OFF, VLEVEL_M, "\r\nMotion Detection result=%d \r\n", sts_pir_state);
diff --git a/STM32CubeIDE/Release/WLE5CC_NODE_STS.elf b/STM32CubeIDE/Release/WLE5CC_NODE_STS.elf
index b39bb30..559123f 100644
Binary files a/STM32CubeIDE/Release/WLE5CC_NODE_STS.elf and b/STM32CubeIDE/Release/WLE5CC_NODE_STS.elf differ
diff --git a/STS/TOF/App/app_tof_peoplecount.c b/STS/TOF/App/app_tof_peoplecount.c
index 8b9b949..c0e743c 100644
--- a/STS/TOF/App/app_tof_peoplecount.c
+++ b/STS/TOF/App/app_tof_peoplecount.c
@@ -779,6 +779,10 @@ int sts_tof_vl53lx_presence_detection_init(void)
   return 0;
 }
 
+uint8_t yes_count=0;
+uint8_t no_count=0;
+#define  TIME_C  4
+
 int sts_tof_vl53lx_presence_detection_start(void)
 {
 	  //uint8_t byteData, sensorState=0;
@@ -839,11 +843,43 @@ int sts_tof_vl53lx_presence_detection_start(void)
 #if 1
   if ((Distance < ppc_cfg[sts_door_jam_profile].dist_threshold) && ((Distance > ppc_cfg[sts_door_jam_profile].min_distance)))
   {
+	  LED1_ON;
+	  if(yes_count<TIME_C)
+	  {
+	  		yes_count++;
+	  }
+	  else
+	  {
+	  		no_count=0;
+	  }
+
 	  PresenceState = 1;
 
-  } else {
-	  PresenceState = 0;
+  } else
+  {
+	  LED1_OFF;
+	  if(no_count<TIME_C)
+	  {
+	  	no_count++;
+	  }
+	  else
+	  {
+	  	yes_count=0;
+	  }
+
+
   }
+
+  if(yes_count>(TIME_C-1))
+  	{
+	  PresenceState = 1;
+
+  	}
+  	else if(no_count>(TIME_C-1))
+  	{
+  		PresenceState = 0;
+  	}
+
 #endif
    //uint8_t PresenceState2 = ProcessPresenceDetectionData(Distance, Zone, RangeStatus);
    //printf("\nPresenceState2 =%d \n\r", PresenceState2);