diff --git a/docs/en/modules/ds18b20.md b/docs/en/modules/ds18b20.md
index c3d81b6f..ed15ff78 100644
--- a/docs/en/modules/ds18b20.md
+++ b/docs/en/modules/ds18b20.md
@@ -3,7 +3,7 @@
 | :----- | :-------------------- | :---------- | :------ |
 | 2017-06-11 | [fetchbot](https://github.com/fetchbot) | [fetchbot](https://github.com/fetchbot) | [ds18b20.c](../../../app/modules/ds18b20.c)|
 
-This module provides access to the DS18B20 1-Wire digital thermometer.
+This module provides access to the DS18B20 1-Wire digital thermometer. Note that NodeMCU offers both a C module (this one) and [a Lua module for this sensor](https://github.com/nodemcu/nodemcu-firmware/tree/dev/lua_modules/ds18b20). See [#2003](https://github.com/nodemcu/nodemcu-firmware/pull/2003) for a discussion on the respective merits of them.
 
 ## ds18b20.read()
 Issues a temperature conversion of all connected sensors on the onewire bus and returns the measurment results after a conversion delay in a callback function.
diff --git a/lua_modules/ds18b20/README.md b/lua_modules/ds18b20/README.md
index bd122cf7..deb8a683 100644
--- a/lua_modules/ds18b20/README.md
+++ b/lua_modules/ds18b20/README.md
@@ -1,4 +1,7 @@
 # DS18B20 Module
+
+This is a Lua module for the DS18B20 1-Wire digital thermometer. Note that NodeMCU offers both a Lua module (this one) and [a C module for this sensor](http://nodemcu.readthedocs.io/en/latest/en/modules/ds18b20/). See [#2003](https://github.com/nodemcu/nodemcu-firmware/pull/2003) for a discussion on the respective merits of them.
+
 ## Require
 ```lua
 ds18b20 = require("ds18b20")
@@ -8,7 +11,6 @@ ds18b20 = require("ds18b20")
 ds18b20 = nil
 package.loaded["ds18b20"]=nil
 ```
-<a id="ds18b20_setup"></a>
 
 # Methods