diff --git a/docs/index.html b/docs/index.html
index 5b286061..9fd3f91e 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -92,7 +92,8 @@
-
+
+
diff --git a/docs/ja/README.md b/docs/ja/README.md
index 19594cda..20e9cfd0 100644
--- a/docs/ja/README.md
+++ b/docs/ja/README.md
@@ -26,9 +26,7 @@
**通信モジュール**
-
-
-[](ja/module/lora) [](ja/module/lorawan) [](ja/module/sim800)
+[](ja/module/gps) [](ja/module/lora) [](ja/module/lorawan) [](ja/module/sim800)
[](ja/module/commu) [](ja/module/usb)
@@ -42,16 +40,20 @@
**駆動モジュール**
-[](ja/module/stepmotor) [](ja/module/servo)
+[](ja/module/stepmotor) [](ja/module/servo) [](ja/module/lego_plus)
-
-
-
+
***
+[](ja/base/lan_base) [](ja/base/node_base) [](ja/base/btc_base)
+
+***
+
+
+
[](ja/unit/m5camera)
[](ja/unit/env) [](ja/unit/ir) [](ja/unit/pir) [](ja/unit/angle)
diff --git a/docs/ja/base/btc_base.md b/docs/ja/base/btc_base.md
new file mode 100644
index 00000000..f52545a9
--- /dev/null
+++ b/docs/ja/base/btc_base.md
@@ -0,0 +1,81 @@
+# BTC Base
+
+
+
+
+
+***
+
+:memo:**[Description](#Description)** :octocat:**[Example](#Example)** 🛒**[Purchase](https://www.aliexpress.com/store/product/M5Stack-Official-Stock-Offer-GPS-Module-with-Internal-External-Antenna-MCX-Interface-IoT-Development-Board-for/3226069_32840757048.html?spm=2114.12010615.8148356.2.7c6c2743BZthY3)**
+
+
+
+# Description
+
+The M5Stack BTC Module is a base including DHT12 module which can detect
+temperature and humidity. Your M5Stack Core board can stay as a small
+displayer(like a small TV or a small IOT central contronller) after
+adding this BTC Module. Absolutely, it is more easier to charge M5Stack
+Core via Type-C Cable after adding this BTC Module.
+
+# Feature
+
+- DHT12 inside
+
+# Include
+
+- Type-C USB Cable
+- M3 x 16
+- Tools
+
+# PinMap
+
+**DHT12**
+
+| DHT12 | ESP32 |
+| :----------: |:------------:|
+| SCL | G22 |
+| GND | GND |
+| SDA | G21 |
+| 3V3 | 3V3 |
+
+
+
+
+# Related Link
+
+- **[Offical Video](https://www.youtube.com/channel/UCozgFVglWYQXbvTmGyS739w)**
+
+- **[Forum](http://forum.m5stack.com/)**
+
+## Example
+
+### Arduino IDE
+
+```arduino
+#include
+#include "DHT12.h"
+#include //The DHT12 uses I2C comunication.
+
+void setup() {
+ M5.begin();
+ Wire.begin();
+ M5.Lcd.setBrightness(10);
+ Serial.println(F("ENV Unit(DHT12 and BMP280) test..."));
+}
+
+void loop() {
+ float tmp = dht12.readTemperature();
+ float hum = dht12.readHumidity();
+ Serial.printf("Temperatura: %2.2f*C Humedad: %0.2f%%\r\n", tmp, hum);
+
+ M5.Lcd.setCursor(0, 0);
+ M5.Lcd.setTextColor(WHITE, BLACK);
+ M5.Lcd.setTextSize(3);
+ M5.Lcd.printf("Temp: %2.1f \r\nHumi: %2.0f%% \r\n", tmp, hum);
+
+ delay(100);
+}
+```
+
+For specific example `BTC.ino`, click [here](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Base/BTC/Arduino) please.
\ No newline at end of file
diff --git a/docs/ja/base/lan_base.md b/docs/ja/base/lan_base.md
index 4d290564..d9a6e519 100644
--- a/docs/ja/base/lan_base.md
+++ b/docs/ja/base/lan_base.md
@@ -42,7 +42,7 @@ M5Stackの無線通信が遅かったり、無線ネットワークに繋がら
- **GitHub**
- [M5Stack](https://github.com/m5stack/M5Stack)
-
+
## 関連情報
diff --git a/docs/ja/base/node_base.md b/docs/ja/base/node_base.md
index 337268c3..7453eb20 100644
--- a/docs/ja/base/node_base.md
+++ b/docs/ja/base/node_base.md
@@ -43,7 +43,7 @@
- **サンプルコード**
- [Arduino](https://github.com/m5stack/M5StackModule-Node/tree/master/example)
-
+
## 関連情報
diff --git a/docs/ja/module/commu.md b/docs/ja/module/commu.md
index 021ec95a..3c8f0ac0 100644
--- a/docs/ja/module/commu.md
+++ b/docs/ja/module/commu.md
@@ -54,4 +54,4 @@
## 回路図
-
\ No newline at end of file
+
\ No newline at end of file
diff --git a/docs/ja/module/lora.md b/docs/ja/module/lora.md
index 6b4e8c22..8f60c0e8 100644
--- a/docs/ja/module/lora.md
+++ b/docs/ja/module/lora.md
@@ -53,4 +53,4 @@ LoRa™は少ない消費電力で広いエリアをカバーする無線通信
## 回路図
-
+
diff --git a/docs/ja/module/lorawan.md b/docs/ja/module/lorawan.md
index 5eb98ec7..2a137f84 100644
--- a/docs/ja/module/lorawan.md
+++ b/docs/ja/module/lorawan.md
@@ -55,4 +55,4 @@
## 回路図
-
\ No newline at end of file
+
\ No newline at end of file
diff --git a/docs/ja/module/proto.md b/docs/ja/module/proto.md
index d7cf79bd..503b67e4 100644
--- a/docs/ja/module/proto.md
+++ b/docs/ja/module/proto.md
@@ -63,7 +63,7 @@
- **GitHub**
- [M5Stack](https://github.com/m5stack/M5Stack)
-### Kit
+
## 関連情報
diff --git a/docs/ja/module/sim800.md b/docs/ja/module/sim800.md
index 32df3489..fc326b68 100644
--- a/docs/ja/module/sim800.md
+++ b/docs/ja/module/sim800.md
@@ -25,7 +25,7 @@ M5Stackシリーズのコアを使用し、Blockly、Arduino、MicroPythonでプ
- 低消費電力で通話、SMS、データ通信が可能
- Bluetooth と Embedded AT
-## ピンマッピング
+## ピンマップ
*After SIM800 was stacked with M5Core, they communicat through UART2*
diff --git a/docs/ja/unit/dac.md b/docs/ja/unit/dac.md
index 91e7bc5d..c8e9ce67 100644
--- a/docs/ja/unit/dac.md
+++ b/docs/ja/unit/dac.md
@@ -1,6 +1,10 @@
# DAC ユニット
+
+***
+
+:memo:**[概要](#概要)** :octocat:**[サンプルコード](#サンプルコード)** 🛒**[購入リンク](https://www.aliexpress.com/item/M5Stack-DAC-MCP4725-I2C-Dac-12-0/32947696641.html)**
## 概要
@@ -25,14 +29,3 @@
- **データシート**
- [MCP4725](http://pdf1.alldatasheet.com/datasheet-pdf/view/233449/MICROCHIP/MCP4725.html)
-
-
-
-
-
-
-
-
-## 関連情報
-
-- [DAC ユニット 購入(AliExpress)](https://www.aliexpress.com/store/product/M5Stack-DAC-MCP4725-I2C-Dac-12-0/3226069_32947696641.html)
\ No newline at end of file
diff --git a/docs/ja/unit/env.md b/docs/ja/unit/env.md
index e7acac3b..19f7e73d 100644
--- a/docs/ja/unit/env.md
+++ b/docs/ja/unit/env.md
@@ -41,12 +41,9 @@
-### ピンマッピング
+### ピンマップ
-M5Core(GROVE A) GPIO22 GPIO21 5V GND
+
+ M5Core(GROVE A) GPIO22 GPIO21 5V GND
ENV Unit SCL SDA 5V GND
-
-
-
-
-
+
\ No newline at end of file
diff --git a/docs/ja/unit/ir.md b/docs/ja/unit/ir.md
index 92ad04e0..19530dfc 100644
--- a/docs/ja/unit/ir.md
+++ b/docs/ja/unit/ir.md
@@ -27,7 +27,7 @@
-### ピンマッピング
+### ピンマップ
M5Core(GROVE B) GPIO36 GPIO26 5V GND
diff --git a/docs/ja/unit/joystick.md b/docs/ja/unit/joystick.md
index 97b1f918..2df22099 100644
--- a/docs/ja/unit/joystick.md
+++ b/docs/ja/unit/joystick.md
@@ -25,7 +25,7 @@
-### ピンマッピング
+### ピンマップ
M5Core(GROVE A) GPIO22 GPIO21 5V GND
diff --git a/docs/ja/unit/light.md b/docs/ja/unit/light.md
index cb7b0302..1ed9c741 100644
--- a/docs/ja/unit/light.md
+++ b/docs/ja/unit/light.md
@@ -28,7 +28,7 @@
-### ピンマッピング
+### ピンマップ
M5Core(GROVE B) GPIO36 GPIO26 5V GND
diff --git a/docs/ja/unit/makey.md b/docs/ja/unit/makey.md
index ff0e81cb..64f8fa73 100644
--- a/docs/ja/unit/makey.md
+++ b/docs/ja/unit/makey.md
@@ -36,7 +36,7 @@
-### ピンマッピング
+### ピンマップ
M5Core(GROVE A) GPIO22 GPIO21 5V GND
diff --git a/docs/ja/unit/ncir.md b/docs/ja/unit/ncir.md
index 00223382..a885f94f 100644
--- a/docs/ja/unit/ncir.md
+++ b/docs/ja/unit/ncir.md
@@ -32,7 +32,7 @@
-### ピンマッピング
+### ピンマップ
M5Core(GROVE A) GPIO22 GPIO21 5V GND
diff --git a/docs/ja/unit/neopixel.md b/docs/ja/unit/neopixel.md
index b9eac79a..215c5185 100644
--- a/docs/ja/unit/neopixel.md
+++ b/docs/ja/unit/neopixel.md
@@ -27,7 +27,7 @@
-### ピンマッピング
+### ピンマップ
M5Core(GROVE A) GPIO22 GPIO21 5V GND
diff --git a/docs/ja/unit/pir.md b/docs/ja/unit/pir.md
index af22a765..6cfa1c02 100644
--- a/docs/ja/unit/pir.md
+++ b/docs/ja/unit/pir.md
@@ -26,7 +26,7 @@
-### ピンマッピング
+### ピンマップ
M5Core(GROVE B) GPIO36 GPIO26 5V GND
diff --git a/docs/ja/unit/relay.md b/docs/ja/unit/relay.md
index e8e43383..89f67c30 100644
--- a/docs/ja/unit/relay.md
+++ b/docs/ja/unit/relay.md
@@ -32,7 +32,7 @@
-### ピンマッピング
+### ピンマップ
M5Core(GROVE B) GPIO36 GPIO26 5V GND
@@ -47,4 +47,4 @@
## 関連動画
-
\ No newline at end of file
+VIDEO
\ No newline at end of file
diff --git a/docs/ja/unit/rgb.md b/docs/ja/unit/rgb.md
index c309417f..ba947d82 100644
--- a/docs/ja/unit/rgb.md
+++ b/docs/ja/unit/rgb.md
@@ -25,7 +25,7 @@
-### ピンマッピング
+### ピンマップ
M5Core(GROVE B) GPIO36 GPIO26 5V GND
diff --git a/docs/ja/unit/thermal.md b/docs/ja/unit/thermal.md
index d5f2e725..33aee4c3 100644
--- a/docs/ja/unit/thermal.md
+++ b/docs/ja/unit/thermal.md
@@ -34,7 +34,7 @@
-### ピンマッピング
+### ピンマップ
M5Core(GROVE A) GPIO22 GPIO21 5V GND
diff --git a/docs/ja/unit/tof.md b/docs/ja/unit/tof.md
index be901e9f..2d77026f 100644
--- a/docs/ja/unit/tof.md
+++ b/docs/ja/unit/tof.md
@@ -36,7 +36,7 @@
-### ピンマッピング
+### ピンマップ
M5Core(GROVE A) GPIO22 GPIO21 5V GND