Bumper Switch

Introduction

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

This page uses bumper_1 as the example Bumper Switch name. Replace it with your own configured name as needed.

Below is a list of all methods:

Getters — Check if the Bumper Switch is currently pressed.

• pressing — Returns whether the Bumper Switch is being pressed.

Callback — Run code when the Bumper Switch is pressed or released.

• pressed — Registers a function to be called when the Bumper Switch is pressed.

• released — Registers a function to be called when the Bumper Switch is released.

Constructors — Manually initialize and configure the Bumper Switch.

• Bumper — Create a Bumper Switch.

Getters

pressing

pressing returns an integer indicating whether the Bumper Switch is being pressed. This can be used to check if the robot bumps into other objects.

• 1 — The Bumper Switch is being pressed.

• 0 — The Bumper Switch is not being pressed.

Usage:
bumper_1.pressing()

Parameters	Description
	This method has no parameters.

# Back up and turn if bumper switch 
# is pressed
while True:
    drivetrain.drive(FORWARD)
    if bumper_1.pressing():
        drivetrain.drive_for(REVERSE, 100, MM)
        drivetrain.turn_for(RIGHT, 90, DEGREES)

Callback

pressed

pressed registers a function to be called when the Bumper Switch is pressed.

Usage:
bumper_1.pressed(callback, arg)

Parameters	Description
callback	A function that is previously defined to execute when the Bumper Switch is being pressed.
arg	Optional. A tuple containing arguments to pass to the callback function. See Functions with Parameters for more information.

# Drive forward when bumper switch 
# is pressed
def bumper_pressed():
    drivetrain.drive_for(FORWARD, 100, MM)

bumper_1.pressed(bumper_pressed)

released

released registers a function to be called when the Bumper Switch is released.

Usage:
bumper_1.released(callback, arg)

Parameters	Description
callback	A function that is previously defined to execute when the Bumper Switch is released.
arg	Optional. A tuple containing arguments to pass to the callback function. See Functions with Parameters for more information.

# Drive reverse when bumper switch 
# is released
def bumper_released():
    drivetrain.drive_for(REVERSE, 100, MM)

bumper_1.released(bumper_released)

Constructors

Constructors are used to manually create Bumper objects, which are necessary for configuring a Bumper Switch outside of VEXcode.

Bumper Switch

Bumper creates a Bumper Switch.

Usage:
Bumper(smartport)

Parameter	Description
smartport	The Smart Port that the Bumper Switch is connected to, written as PORTx where x is the number of the port.

bumper_1 = Bumper(PORT1)
# Back up and turn if bumper switch pressed
while True:
    drivetrain.drive(FORWARD)
    if bumper_1.pressing():
        drivetrain.drive_for(REVERSE, 100, MM)
        drivetrain.turn_for(RIGHT, 90, DEGREES)