diff --git a/.gitmodules b/.gitmodules
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+++ b/.gitmodules
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+[submodule "encyclopedia_galactica"]
+	path = encyclopedia_galactica
+	url = https://github.com/antsouchlos/EncyclopediaGalactica.git
diff --git a/README.md b/README.md
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+++ b/README.md
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+# CommonSense
+
+A BLE-based PCB for measuring humidity and temperature
+
+## Downloading libraries
+
+After cloning, the libraries have to be downloaded using
+```bash
+$ git submodule update --init
+```
diff --git a/encyclopedia_galactica b/encyclopedia_galactica
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+Subproject commit d7c6225a24e0fd8e60ca66601700c2681419d555