diff --git a/DFRobot_mmWave_Radar.cpp b/DFRobot_mmWave_Radar.cpp
index eb7113d..1fcfff8 100644
--- a/DFRobot_mmWave_Radar.cpp
+++ b/DFRobot_mmWave_Radar.cpp
@@ -230,6 +230,27 @@ void DFRobot_mmWave_Radar::OutputLatency(float par1, float par2)
   delay(DELAY);
 }
 
+void DFRobot_mmWave_Radar::setSensitivity(int sen)
+{
+
+  char comSetSensitivity[18] = {0};
+  
+  sprintf(comSetSensitivity, "setSensitivity %d", sen);
+
+  _s->write(comStop);
+  delay(DELAY);
+
+  _s->write(comSetSensitivity);
+  //_s->write("setSensitivity 3"); 
+  delay(DELAY);
+
+  _s->write(comSaveCfg);
+  delay(DELAY);
+
+  _s->write(comStart);
+  delay(DELAY);
+}
+
 void DFRobot_mmWave_Radar::factoryReset(void)
 {
   _s->write(comStop);
@@ -244,3 +265,33 @@ void DFRobot_mmWave_Radar::factoryReset(void)
   _s->write(comStart);
   delay(DELAY);
 }
+
+void DFRobot_mmWave_Radar::disableLED(void)
+{
+  _s->write(comStop);
+  delay(DELAY);
+
+  _s->write("setLedMode 1 1");
+  delay(DELAY);
+
+  _s->write(comSaveCfg);
+  delay(DELAY);
+
+  _s->write(comStart);
+  delay(DELAY);
+}
+
+void DFRobot_mmWave_Radar::enableLED(void)
+{
+  _s->write(comStop);
+  delay(DELAY);
+
+  _s->write("setLedMode 1 0");
+  delay(DELAY);
+
+  _s->write(comSaveCfg);
+  delay(DELAY);
+
+  _s->write(comStart);
+  delay(DELAY);
+}
diff --git a/DFRobot_mmWave_Radar.h b/DFRobot_mmWave_Radar.h
index 5864786..d632228 100644
--- a/DFRobot_mmWave_Radar.h
+++ b/DFRobot_mmWave_Radar.h
@@ -92,6 +92,23 @@ class DFRobot_mmWave_Radar
       @brief  Restore the sensor current configuration to the factory settings. 
     */
     void factoryReset(void);
+	
+	
+	/**
+      @brief  Configure the sensor senitivity
+	  @param  Set the sensitivit of the sensor integer range:0-9  unit: 0=LOW 9=HIGH
+    */
+    void setSensitivity(int sen);
+	
+	/**
+      @brief  Disble Led
+    */
+    void disableLED(void);
+	
+	/**
+      @brief  Enable Led
+    */
+    void enableLED(void);
 
   private:
 
diff --git a/example/DFRobot_mmWave_Radar-Arduino/DFRobot_mmWave_Radar-Arduino.ino b/example/DFRobot_mmWave_Radar-Arduino/DFRobot_mmWave_Radar-Arduino.ino
index b2485c5..1a89745 100644
--- a/example/DFRobot_mmWave_Radar-Arduino/DFRobot_mmWave_Radar-Arduino.ino
+++ b/example/DFRobot_mmWave_Radar-Arduino/DFRobot_mmWave_Radar-Arduino.ino
@@ -31,6 +31,10 @@ void setup()
   sensor.factoryReset();    //Restore to the factory settings 
   sensor.DetRangeCfg(0, 9);    //The detection range is as far as 9m
   sensor.OutputLatency(0, 0);
+  sensor.setSensitivity(3); //Set Sensitivity to 3
+  sensor.disableLED();		//disable onboard LED
+  //sensor.enableLED();		//enable onboard LED
+  
 }
 
 void loop()
diff --git a/keywords.txt b/keywords.txt
index 1ed6d83..159f57e 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -16,6 +16,9 @@ DetRangeCfg	KEYWORD2
 readPresenceDetection	KEYWORD2
 OutputLatency	KEYWORD2
 factoryReset	KEYWORD2
+setSensitivity	KEYWORD2
+enableLED		KEYWORD2
+disableLED		KEYWORD2
 
 
 #######################################