diff --git a/IoT/SensorNode.adoc b/IoT/SensorNode.adoc
index a9a0824..e54f48a 100644
--- a/IoT/SensorNode.adoc
+++ b/IoT/SensorNode.adoc
@@ -227,6 +227,10 @@ image:./sensors_01_AHRSOutput.png[alt="AHRS raw data"]
 
 This raw data shows the main orientation data, consisting of 'roll', 'pitch' and 'heading' (or 'yaw) in degrees, followed by the current altitude and temperature 
   
+
+
+=== Using AHRS Data
+
 The AHRS sketchs reads raw data from the board's accelerometer/magnetometer and converts the raw data into easy to understand **Euler angles.**
 
 In this case, we can see that the **roll is about 18°**, the **pitch is about 78°** and the **heading or yaw is about 32°**, and the sketch will keep updating itself with the latest values at whatever speed we've set in the sketch. 
@@ -251,7 +255,9 @@ https://en.wikipedia.org/wiki/Leonhard_Euler[Leonhard Euler]
 ====
 
 
+=== Save Data
 
+=== Visualizing Data