Bumper

Introduction

The Bumper Switch is a mechanical switch that completes a circuit when pressed, allowing the robot to detect presses and releases.

Below is a list of available blocks:

• Bumper Switch pressed – Reports a Boolean indicating if the Bumper Switch is being pressed.

• when Bumper Switch – Runs the attached stack of blocks when the Bumper Switch is pressed or released.

Bumper Switch pressed?

The Bumper Switch pressed Boolean block reports whether or not a Bumper Switch is being pressed. This can be used to check if the robot bumps into other objects.

• True — The Bumper Switch is being pressed.

• False — The Bumper Switch is not being pressed

  <[BumperA v] pressed?>

Parameter	Description
device	Which Bumper Switch to use, configured in the Devices window.

  when started
  [Display a message when the Bumper Switch is pressed.]
  wait until <[BumperA v] pressed?>
  print [Bumper Switch pressed!] on screen ▶

when Bumper Switch

The when Bumper Switch hat block runs the attached stack of blocks when the selected Bumper Switch is pressed or released.

  when [BumperA v] [pressed v]  :: hat events

Parameter	Description
device	Which Bumper Switch to use, configured in the Devices window.
state	When the attached stack of blocks will run: pressed will run when the Bumper Switch is pressed down, and released runs when the Bumper Switch is released.

Drive forward until an object is detected within 200 mm

  when [BumperA v] [pressed v]  :: hat events
  [Display a message when the Bumper Switch is pressed.]
  print [Bumper Switch pressed!] on screen ▶