diff --git a/Input-Calibration.md b/Input-Calibration.md
index 49231b7..1a188b7 100644
--- a/Input-Calibration.md
+++ b/Input-Calibration.md
@@ -1,4 +1,11 @@
-Input Calibration is required to identify the type of inputs you are using (normal pot, mid-resting pot, no input), and the range of your inputs.
+Input Calibration is required to identify:
+* the type of inputs you are using (normal pot, mid-resting pot, no input)
+* the range of your inputs (minimum and maximum values)
+* the middle value (e.g center of the joystick) for mid-resting pots
+
+At startup, for safety reasons, the firmware won't enable the motors if the input is not very small (between -50 and 50).<br>
+If you don't hear beeps after the turn on melody, it means the motors are not enabled as they would start to spin fast otherwise.<br>
+You need to calibrate your inputs either manually or with the auto-calibration.<br>
 
 # Manual Calibration: