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Mastering Arduino by Jon Hoffman

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Introduction

In this chapter, we will look at three sensors that we can use to add obstacle avoidance and/or collision detection to our projects. These sensors are:

  • Crash sensor: Used to detect a crash and also used as limit switches for 3D printers
  • Infrared obstacle avoidance sensor: Used for obstacle avoidance for robotics
  • Ultrasonic range finder: Used for obstacle avoidance for robotics and has many other commercial and military uses

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