diff --git a/SampleSrc/TestBuild/TestBuild.ino b/SampleSrc/TestBuild/TestBuild.ino
index 208ca33..5135bc4 100644
--- a/SampleSrc/TestBuild/TestBuild.ino
+++ b/SampleSrc/TestBuild/TestBuild.ino
@@ -1,14 +1,17 @@
 int num = 0;
 void setup() {
   Serial.begin(115200); // 通信速度をbpsで設定
+  pinMode(10, OUTPUT);
 }
 void loop() {
-  Serial.printf("日本語 %d \n" , num);
+  Serial.printf("%d \n" , num);
   num++;
-  delay(500); // 500ミリ秒待つ
+  if (num%5==1){
+  	digitalWrite(10,  LOW ); // LED ON (LOW=0)
+  	delay(1500); // 1500ミリ秒待つ
+  } else {
+  	digitalWrite(10,  HIGH ); // LED OFF (HIGH=1)
+  	delay(500); // 500ミリ秒待つ
+  }
 }
 
-
-
-
-
diff --git a/SampleSrc/serial01.ino b/SampleSrc/serial01.ino
index 2947625..5135bc4 100644
--- a/SampleSrc/serial01.ino
+++ b/SampleSrc/serial01.ino
@@ -1,9 +1,17 @@
-int num = 0;
-void setup() {
-  Serial.begin(115200); // 通信速度をbpsで設定
-}
-void loop() {
-  Serial.printf("%d \n" , num);
-  num++;
-  delay(500); // 500ミリ秒待つ
-}
+int num = 0;
+void setup() {
+  Serial.begin(115200); // 通信速度をbpsで設定
+  pinMode(10, OUTPUT);
+}
+void loop() {
+  Serial.printf("%d \n" , num);
+  num++;
+  if (num%5==1){
+  	digitalWrite(10,  LOW ); // LED ON (LOW=0)
+  	delay(1500); // 1500ミリ秒待つ
+  } else {
+  	digitalWrite(10,  HIGH ); // LED OFF (HIGH=1)
+  	delay(500); // 500ミリ秒待つ
+  }
+}
+