diff --git a/README.md b/README.md
index bd6f319..d8fb42a 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,9 @@ Arduino based project running on my custom made board
 **The modules :**
 ![](http://88.167.116.148/images/git/SAB_cmp_mod.png)
 
+### Hardware pin mapping
+
+
 ## Here is a list of the components needed in order to build such a board :
 * 1x 1N4001 reverse voltage protection diode
 * 1x AMS1117 5v voltage regulator