Chapter 11, Programming Distance Sensors with Python

• What might interfere with a light-based distance sensor?
  • Sunlight, florescent lighting, and other light based sensors – such timing sensors used on tracks
• Why do we divide our speed of sound number by 2?
  • Because the sound pulse has travelled from our robot to the object and then back – twice the distance
• Why in the more complicated behavior has a variable delay been introduced?
  • To ensure the robot drives back for some time and doesn't jitter
• Why could the robot still reverse into things?
  • There are no rear sensors and the robot is not moving accurately enough to construct a map.