diff --git a/Code/C_Code/03.1.1_LightWater/LightWater b/Code/C_Code/03.1.1_LightWater/LightWater
deleted file mode 100644
index 6e60d95..0000000
Binary files a/Code/C_Code/03.1.1_LightWater/LightWater and /dev/null differ
diff --git a/Code/C_Code/04.1.1_BreathingLED/BreathingLED b/Code/C_Code/04.1.1_BreathingLED/BreathingLED
deleted file mode 100644
index 34e8de2..0000000
Binary files a/Code/C_Code/04.1.1_BreathingLED/BreathingLED and /dev/null differ
diff --git a/Code/C_Code/04.1.1_BreathingLED/BreathingLED.c b/Code/C_Code/04.1.1_BreathingLED/BreathingLED.c
index 36e1e3a..5ee80db 100644
--- a/Code/C_Code/04.1.1_BreathingLED/BreathingLED.c
+++ b/Code/C_Code/04.1.1_BreathingLED/BreathingLED.c
@@ -2,11 +2,12 @@
 * Filename    : BreathingLED.c
 * Description : A breathing LED
 * Author      : freenove
-* modification: 2016/06/14
+* modification: 2019/07/05
 **********************************************************************/
 
 #include <wiringPi.h>
 #include <stdio.h>
+#include <softPwm.h>
 
 #define ledPin    1 //Only GPIO18 can output PWM
 
@@ -19,17 +20,17 @@ int main(void)
 		return 1; 
 	}
 	
-	pinMode(ledPin, PWM_OUTPUT);//pwm output mode
+	softPwmCreate(ledPin,  0, 100);//Creat SoftPWM pin
 
 	while(1){
-		for(i=0;i<1024;i++){
-			pwmWrite(ledPin, i);
-			delay(2);
+		for(i=0;i<100;i++){
+			softPwmWrite(ledPin, i);
+			delay(20);
 		}
 		delay(300);
-		for(i=1023;i>=0;i--){
-			pwmWrite(ledPin, i);
-			delay(2);
+		for(i=100;i>=0;i--){
+			softPwmWrite(ledPin, i);
+			delay(20);
 		}
 		delay(300);
 	}
diff --git a/Code/C_Code/06.1.1_Doorbell/Doorbell b/Code/C_Code/06.1.1_Doorbell/Doorbell
deleted file mode 100644
index 8599b9c..0000000
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diff --git a/Code/C_Code/06.2.1_Alertor/alertor b/Code/C_Code/06.2.1_Alertor/alertor
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index 10ef2c2..0000000
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diff --git a/Code/C_Code/08.1.1_Softlight/Softlight b/Code/C_Code/08.1.1_Softlight/Softlight
deleted file mode 100644
index f178463..0000000
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diff --git a/Code/C_Code/09.1.1_ColorfulSoftlight/ColorfulSoftlight b/Code/C_Code/09.1.1_ColorfulSoftlight/ColorfulSoftlight
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index 5f08e2a..0000000
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diff --git a/Code/C_Code/10.1.1_Nightlamp/Nightlamp b/Code/C_Code/10.1.1_Nightlamp/Nightlamp
deleted file mode 100644
index 292f282..0000000
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