diff --git a/.gitignore b/.gitignore
index 94ab30c..01d0c79 100755
--- a/.gitignore
+++ b/.gitignore
@@ -2,5 +2,4 @@
 !/examples/makefile
 /*.o
 /*.so
-/examples/*
 
diff --git a/examples/pwmtest.cpp b/examples/pwmtest.cpp
new file mode 100755
index 0000000..b34c481
--- /dev/null
+++ b/examples/pwmtest.cpp
@@ -0,0 +1,61 @@
+/*
+ * pwmtest.cpp:
+ *
+ *	Welcome to MikuQ.com! MikuDuino for BananaPi 
+ *	
+ *     by MikuQ(i@mikuq.com) 2016-9-15
+ *	
+ * https://github.com/bpiq/MikuPi
+ *
+ */
+
+#include <MikuDuino.h>
+#include <MikuPWM.h>
+
+MikuPWM pwm = MikuPWM();
+
+uint8_t breathing_table[128] = {
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 8, 8, 9, 10, 11, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 25, 26, 27, 29, 30, 32, 34, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 56, 58, 61, 63, 66, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98, 102, 105, 108, 112, 116, 119, 123, 126, 130, 134, 138, 142, 145, 149, 153, 157, 161, 165, 169, 173, 176, 180, 184, 188, 192, 195, 199, 203, 206, 210, 213, 216, 219, 223, 226, 228, 231, 234, 236, 239, 241, 243, 245, 247, 248, 250, 251, 252, 253, 254, 255, 255, 255
+};
+
+void setup() {
+  printf("16 channel PWM test!\r\n");
+  pwm.begin();
+  pwm.setPWMFreq(1600);    
+}
+
+void loop() {
+  int i,j;
+  int x=1;
+  int y=5;
+  for(i=0;i<8;i++)
+  {
+    for(j=0;j<128;j+=x)
+    {
+      pwm.setPWM(i, 0, breathing_table[j]*15);
+      pwm.setPWM(15-i, 0, breathing_table[j]*15);
+      delay(y);
+    }
+    for(j=0;j<128;j+=x)
+    {
+      pwm.setPWM(i, 0, breathing_table[(128-x-j)]*15);
+      pwm.setPWM(15-i, 0, breathing_table[(128-x-j)]*15);
+      delay(y);
+    }
+  }
+  for(i=6;i>=1;i--)
+  {
+    for(j=0;j<128;j+=x)
+    {
+      pwm.setPWM(i, 0, breathing_table[j]*15);
+      pwm.setPWM(15-i, 0, breathing_table[j]*15);
+      delay(y);
+    }
+    for(j=0;j<128;j+=x)
+    {
+      pwm.setPWM(i, 0, breathing_table[(128-x-j)]*15);
+      pwm.setPWM(15-i, 0, breathing_table[(128-x-j)]*15);
+      delay(y);
+    }
+  }}
+