diff --git a/examples/bbb_servo.coffee b/examples/bbb_servo.coffee
index e0882d6..65df378 100644
--- a/examples/bbb_servo.coffee
+++ b/examples/bbb_servo.coffee
@@ -6,6 +6,21 @@ Cylon.robot
 
   work: (my) ->
 
+    # Be carefull with your servo angles or you might DAMAGE the servo!
+    # Cylon uses a 50hz/s (20ms period) frequency and a Duty Cycle
+    # of 0.5ms to 2.5ms to control the servo angle movement.
+    #
+    # This means:
+    # 1. 0.5ms == 0 degrees
+    # 2. 1.5ms == 90 degrees
+    # 3. 2.5ms == 180 degrees
+    # (It is usually safe to start with a 90 degree angle, 1.5ms duty
+    # cycle in most servos)
+    #
+    # Please review your servo datasheet to make sure of correct
+    # angle range and the Freq/MS Duty cycle it requires.
+    # If more servo support is needed leave us a comment, raise an
+    # issue or help us add more support.
     angle = 30
     increment = 40