Here are the basic demos for the Littlebot Arduino Robots Kit
Here is a video for the basic assembly of the Littlebot and use of the Android App for the Littlebot.
The Littlebot has four modes that have been created. There is the Remote Control Mode (though bluetooth), the Wander Mode (using just the ultrasonic sensor), Wall Following (Using the IR proximity Sensor), and Line Following (with IR line sensors)
The files for all of the parts can be downloaded from the LittleBots website or from Thingiverse.LittleBot with Wall Following IR SensorLittleBot with line sensors