diff --git a/docs/en/base/btc_base.md b/docs/en/base/btc_base.md
index 4bccef68..f52545a9 100644
--- a/docs/en/base/btc_base.md
+++ b/docs/en/base/btc_base.md
@@ -1,4 +1,4 @@
-# M5Stack BTC Module
+# BTC Base
 
 <img src="assets/img/product_pics/module/module_btc_01.png" width="30%" height="30%"> <img src="assets/img/product_pics/module/module_btc_02.png" width="30%" height="30%"> <img src="assets/img/product_pics/module/module_btc_03.png" width="30%" height="30%"> <img src="assets/img/product_pics/module/module_btc_04.png" width="30%" height="30%">
 
diff --git a/docs/ja/README.md b/docs/ja/README.md
index bc103ff0..6222415c 100644
--- a/docs/ja/README.md
+++ b/docs/ja/README.md
@@ -48,7 +48,7 @@
 
 <img src='assets/img/product_pics/5.jpg'> <img src='assets/img/product_pics/bases.png'>
 
-[![lan_01.png](https://i.loli.net/2018/12/13/5c1223ee16411.png)](ja/base/lan_base)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[![node_01.png](https://i.loli.net/2018/12/13/5c1223fd8d2cb.png)](ja/base/node_base)
+[![lan_01.png](https://i.loli.net/2018/12/13/5c1223ee16411.png)](ja/base/lan_base)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[![node_01.png](https://i.loli.net/2018/12/13/5c1223fd8d2cb.png)](ja/base/node_base)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[![btc_01.png](https://img-blog.csdnimg.cn/20181226174825591.png)](zh_CN/base/btc_base)
 
 <!-- [![plc_01.png](https://i.loli.net/2018/12/13/5c122411a87d1.png)](ja/base/plc_base) -->
 
diff --git a/docs/ja/module/btc.md b/docs/ja/module/btc.md
index 07519349..2a9abb7c 100644
--- a/docs/ja/module/btc.md
+++ b/docs/ja/module/btc.md
@@ -1,4 +1,4 @@
-# BTC モジュール
+# BTC ベース
 
 <img src="assets/img/product_pics/module/module_btc_01.png" width="30%" height="30%"> <img src="assets/img/product_pics/module/module_btc_02.png" width="30%" height="30%"> <img src="assets/img/product_pics/module/module_btc_03.png" width="30%" height="30%"> <img src="assets/img/product_pics/module/module_btc_04.png" width="30%" height="30%">
 
@@ -41,15 +41,13 @@
     <img src="assets/img/product_pics/module/module_btc_dht12_pinmap.png">
 </figure>
 
-## ドキュメント
-
-- **ウェブサイト**
-
-- [サンプルコード](https://github.com/m5stack/M5Stack/tree/master/examples/Modules/DHT12) (for DHT12)
-
 ## サンプルコード
 
 ```arduino
+/*
+  Example for DHT12 Sensor
+*/
+
 #include <M5Stack.h>
 #include "DHT12.h"
 #include <Wire.h> //The DHT12 uses I2C comunication.
@@ -75,4 +73,4 @@ void loop() {
 }
 ```
 
-特定の `BTC.ino`, click [here](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Base/BTC/Arduino) please.
\ No newline at end of file
+特定の `BTC.ino`, クリック[ここで](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Base/BTC/Arduino).
\ No newline at end of file