diff --git a/nRF/README.md b/Embed/README.md
similarity index 70%
rename from nRF/README.md
rename to Embed/README.md
index c2fcb71..fd1c19d 100644
--- a/nRF/README.md
+++ b/Embed/README.md
@@ -1,5 +1,5 @@
 <header><h1>
-Nordic - nRF
+Embedded Systems
 </h1></header>
 
 ----------
diff --git a/STM32/README.md b/Embed/STM32/README.md
similarity index 100%
rename from STM32/README.md
rename to Embed/STM32/README.md
diff --git a/Embed/nRF/README.md b/Embed/nRF/README.md
new file mode 100644
index 0000000..4aa0d43
--- /dev/null
+++ b/Embed/nRF/README.md
@@ -0,0 +1,7 @@
+<header><h1>
+Nordic - nRF
+</h1></header>
+
+----------
+
+[Install development environment](/Embed/nRF/development_environment.md)
diff --git a/nRF/nRF_development_environment.md b/Embed/nRF/development_environment.md
similarity index 96%
rename from nRF/nRF_development_environment.md
rename to Embed/nRF/development_environment.md
index 9d607bc..6bce018 100644
--- a/nRF/nRF_development_environment.md
+++ b/Embed/nRF/development_environment.md
@@ -48,7 +48,7 @@ Cry
 
 <!-- tabs:end -->
 
-# Installing Zephyr [↗](https://builds.zephyrproject.io/zephyr/pr/60204/docs/develop/getting_started/index.html)
+# 2. Installing Zephyr [↗](https://builds.zephyrproject.io/zephyr/pr/60204/docs/develop/getting_started/index.html)
 Zephyr is an open-source real-time operating system (RTOS) that is designed to be small, scalable, and secure for use
 on resource-constrained systems.
 It is a Linux Foundation project and is governed by a Technical Steering Committee (TSC).
@@ -183,7 +183,7 @@ Cry
 
 <!-- tabs:end -->
 
-# Configure CLion for Zephyr [↗](https://builds.zephyrproject.io/zephyr/pr/60204/docs/develop/tools/clion.html#clion)
+# 3. Configure CLion for Zephyr [↗](https://builds.zephyrproject.io/zephyr/pr/60204/docs/develop/tools/clion.html#clion)
 
 <!-- tabs:start -->
 #### **Linux**
diff --git a/nRF/medias/GDB_settings.png b/Embed/nRF/medias/GDB_settings.png
similarity index 100%
rename from nRF/medias/GDB_settings.png
rename to Embed/nRF/medias/GDB_settings.png
diff --git a/README.md b/README.md
index 27085cd..f982f64 100644
--- a/README.md
+++ b/README.md
@@ -15,8 +15,10 @@ Mainly some topics:
 - [Eln - Électronique](/infotro/Eln/)
 - [SEm - Systèmes Embarqué](/infotro/SEm/)
 
-# [STM32](/STM32/)
-Here some note specific about STM32
+# [Embedded Systems](/Embed/)
+Here some note specific about some Embedded System
+- [STM32](/Embed/STM32/)
+- [nRF](/Embed/nRF/)
 
 # [Working environment at HES-SO](/HES-SO/)
 Here some note about the working environment at HES-SO
diff --git a/_navbar.md b/_navbar.md
index d97ee85..1545383 100644
--- a/_navbar.md
+++ b/_navbar.md
@@ -3,6 +3,8 @@
   * [SDi - Systèmes Distribués](/infotro/SDi/)
   * [Eln - Électronique](/infotro/Eln/)
   * [SEm - Systèmes Embarqués](/infotro/SEm/)
-* [STM32](/STM32/)
+* [Embed](/Embed/)
+  * [STM32](/Embed/STM32/)
+  * [nRF](/Embed/nRF/)
 * [HES-SO](/HES-SO/)
   * [OneDrive - Linux](/HES-SO/OneDrive.md)