Here are all of the code samples that we have created so far for the Littlebot Budget. More will be added as time passes and you guys create and submit more.  Enjoy!

Walter_OS

This file contains the primary Android app control code and the Autonomous wander code. 
Defaults to Direct Control from the app. The Bot will sit silent when powered on until the App is connected and sends commands
walteros_05.2_app.ino
File Size: 10 kb
File Type: ino
Download File
Defaults to Wander Mode. The Bot will use his ultrasonic sensor eyes to wander around the room until the app is connected and changes his mode.
walteros_05.2_wander.ino
File Size: 10 kb
File Type: ino
Download File

Other Code Samples and Tutorials

Simple Single Step Motion

This code is a baseline for students to learn simple programming structure by creating a sequence of actions for the LittleBot. Just turning on 1 motor or the other for a time. From this they can learn if statements, loops, and start to implement sensor feedback. The video at the right shows a demo of the baseline code below without editing.
1_step_at_a_time_ultrasimple.ino
File Size: 4 kb
File Type: ino
Download File

Fire Sensing

Setup the Littlebot to run away from Flame when a candle comes near him. Tutorial Coming Soon.
runaway_fire_sensor_arduino_code.ino
File Size: 3 kb
File Type: ino
Download File
This same code can also be used with the Arduino Sound Sensor

Hand Follow

The Littlebot will maintain a fixed distance away from your hand. Tutorial Coming Soon.
Code Using Simple if Statements
handfollow_v1_simple_if.ino
File Size: 3 kb
File Type: ino
Download File
Code Using a Basic Proportional Controller
handfollow_v2_prop_controller.ino.ino
File Size: 4 kb
File Type: ino
Download File

Light Follow

Use two light sensors and get the LittleBot to follow a flashlight beam. Tutorial Coming Soon.
littlebot_light_following_v3.ino
File Size: 4 kb
File Type: ino
Download File

Speech Examples

Several examples of using the buzzer to make the LittleBot Speak
arduino_speech_program.ino
File Size: 4 kb
File Type: ino
Download File
just_happy_birthday.ino
File Size: 1 kb
File Type: ino
Download File

React to Tilt Sensor

LittleBot will beep when bumped. Tutorial coming soon.
tilt_sensor_buzzer.ino
File Size: 1 kb
File Type: ino
Download File

Line Follow

Use the Line Following Sensors to follow a black line on a white surface. Tutorial coming soon.
single_line_follower.ino
File Size: 3 kb
File Type: ino
Download File
double_line_follower_code.ino
File Size: 2 kb
File Type: ino
Download File

Wall Follow

Use an IR Proximity Sensor to follow a wall. 
wall_follower.ino
File Size: 14 kb
File Type: ino
Download File