diff --git a/lua_modules/bmp085/bmp085.EN.md b/lua_modules/bmp085/bmp085.EN.md
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+# BMP085 module
+
+##Require
+```lua
+bmp085 = require("bmp085")
+```
+## Release
+```lua
+bmp085 = nil
+package.loaded["bmp085"]=nil
+```
+<a id="bmp085_init"></a>
+##init()
+####Description
+Setting the i2c pin of bmp085.<br />
+
+####Syntax
+init(sda, scl)
+
+####Parameters
+sda: 1~12, IO index.<br />
+scl: 1~12, IO index.<br />
+
+####Returns
+nil
+
+####Example
+```lua
+bmp085 = require("bmp085")
+gpio5 = 1
+gpio4 = 2
+sda = gpio5
+scl = gpio4
+bmp085.init(sda, scl)
+-- Don't forget to release it after use
+bmp085 = nil
+package.loaded["bmp085"]=nil
+```
+
+####See also
+**-**   []()
+
+<a id="bmp085_getUP"></a>
+##getUP()
+####Description
+Get calibrated data of pressure from bmp085.<br />
+
+####Syntax
+getUP(oss)
+
+####Parameters
+oss: Over sampling setting, which is 0,1,2,3. Default value is 0.<br />
+
+####Returns
+p: Integer, calibrated data of pressure from bmp085.
+
+####Example
+```lua
+bmp085 = require("bmp085")
+sda = 1
+scl = 2
+bmp085.init(sda, scl)
+p = bmp085.getUP(oss)
+print(p)
+-- Don't forget to release it after use
+bmp085 = nil
+package.loaded["bmp085"]=nil
+```
+
+####See also
+**-**   []()
+
+<a id="bmp085_getUP_raw"></a>
+##getUP_raw()
+####Description
+Get raw data of pressure from bmp085.<br />
+
+####Syntax
+getUP_raw(oss)
+
+####Parameters
+oss: Over sampling setting, which is 0,1,2,3. Default value is 0.<br />
+
+####Returns
+up_raw: Integer, raw data of pressure from bmp085.
+
+####Example
+```lua
+bmp085 = require("bmp085")
+sda = 1
+scl = 2
+bmp085.init(sda, scl)
+up = bmp085.getUP_raw(oss)
+print(up)
+-- Don't forget to release it after use
+bmp085 = nil
+package.loaded["bmp085"]=nil
+```
+
+####See also
+**-**   []()
+
+<a id="bmp085_getUT"></a>
+##getUT()
+####Description
+Get temperature from bmp085.<br />
+
+####Syntax
+getUT(num_10x)
+
+####Parameters
+num_10x: num_10x: bool value, if true, return number of 0.1 centi-degree. Default value is false, which return a string , eg: 16.7.<br />
+
+####Returns
+t: Integer or String, if num_10x is true, return number of 0.1 centi-degree, otherwise return a string.The temperature from bmp085.<br />
+
+####Example
+```lua
+bmp085 = require("bmp085")
+sda = 1
+scl = 2
+bmp085.init(sda, scl)
+-- Get string of temperature.
+p = bmp085.getUT(false)
+print(p)
+-- Get number of temperature.
+p = bmp085.getUT(true)
+print(p)
+-- Don't forget to release it after use
+bmp085 = nil
+package.loaded["bmp085"]=nil
+```
+
+####See also
+**-**   []()
+
+<a id="bmp085_getAL"></a>
+##getAL()
+####Description
+Get estimated data of altitude from bmp085.<br />
+
+####Syntax
+getAL(oss)
+
+####Parameters
+oss: over sampling setting, which is 0,1,2,3. Default value is 0.<br />
+
+####Returns
+e: Integer, estimated data of altitude. Altitudi can be calculated by pressure refer to sea level pressure, which is 101325. Pressure changes 100pa corresponds to 8.43m at sea level<br />
+
+####Example
+```lua
+bmp085 = require("bmp085")
+sda = 1
+scl = 2
+bmp085.init(sda, scl)
+-- Get string of temperature.
+e = bmp085.getAL()
+print(p)
+-- Don't forget to release it after use
+bmp085 = nil
+package.loaded["bmp085"]=nil
+```
+
+####See also
+**-**   []()
diff --git a/lua_modules/bmp085.lua b/lua_modules/bmp085/bmp085.lua
similarity index 100%
rename from lua_modules/bmp085.lua
rename to lua_modules/bmp085/bmp085.lua