diff --git a/640.md b/640.md
index 7952374..d215d50 100644
--- a/640.md
+++ b/640.md
@@ -44,7 +44,7 @@ This script will start each motor port, in the forwards direction, in turn from
 $ python 640motortest.py
 ```
 
-**640servotest.py**
+#### 640servotest.py
 
 This script will move any servos connected to the servo headers left, then center, then right. To run the script enter the following:
 
@@ -52,7 +52,7 @@ This script will move any servos connected to the servo headers left, then cente
 $ python 640servotest.py
 ```
 
-**640steppertest.py**
+#### 640steppertest.py
 
 This script divides the 6 motor ports into 3 stepper motor ports. Motor 1 and 2 will be stepper 1, motor 3 and 4 will be stepper 2 and motor 5 and 6 will be stepper 3.
 
@@ -62,19 +62,24 @@ Each stepper will be moved forwards and backwards through 200 steps when the tes
 $ python 640steppertest.py
 ```
 
-### Import libraries
+### The 640 board API
 
 Now you know everything works, it's time to write your own scripts. So create a new python script in your editor, within the *darkwater_python_640* directory with a memorable name and add the following lines to import our libraries:
 
 ``` python
 import time
-from darkwater_640.darkwater_640 import dw_Controller, dw_Motor
+from darkwater_640.darkwater_640 import dw_Controller, dw_Motor, dw_Servo
 ```
 
-### Drive a motor
+#### Create a controller
 
-### Motor speed
-### Servo control
+#### Select a Motor
+
+#### Motor driving
+
+#### Select a Servo
+
+#### Servo control
 
 ## Node.JS