Widgets Reference

Text or Numeric Value

A value widget displays a text or numeric value.

Accepted channel types:

primitive string, number

Configuration options:

Title
Content alignment
Content (font) size
Monospace font
Numeric value maximum fraction digits

Color Value

A color widget displays a color based on a string, number or boolean value.

If the bound value is a string then it must contain a valid CSS color.

If the bound value is a number, it is converted to an RGB color, assuming the lowest 8 bits representing Blue, the next 8 bits representing Green, and the next 8 bits representing Red.

If the bound value is a boolean, then the corresponding color configured in the options is used.

Accepted channel types:

primitive string, number, boolean

Configuration options:

Title
True-value color
False-value color

Toggle

A toggle widget displays a boolean (true/false) primitive.

Accepted channel types:

primitive boolean

Configuration options:

Title
Interactive

Chooser

A chooser widget provides a drop-down selector from a list of options.

Accepted channel types:

composite SendableChooser

Configuration options:

Title
Interactive

Slider

A numeric slider widget with a configurable range and step.

Accepted channel types:

primitive number

Configuration options:

Title
Minimum value
Maximum value
Step
Numeric value maximum fraction digits

Gyro

A gyro widget displays a yaw, pitch or roll of the robot.

Accepted channel types:

primitive number, number[] (interpreted in radians)
structured Pose2d, Pose3d, Rotation2d, Rotation3d, Quaternion
composite Field2d, Gyro, ADIS16448 IMU, ADIS16470 IMU

Configuration options (Yaw mode):

Symmetric dial (-90°…90°) — when enabled shows dial with both positive and negative values
Clockwise orientation — when enabled shows dial in CW orientation, default is CCW

Swerve

A swerve widget displays rotation, module and chassis speeds.

This widget is designed to work with a custom SwerveTelemetry structure that encapsulates information about the swerve subsystem. See ReflectLib for setup instructions.

Alternatively you can bound this widget to a channel representing an array of SwerveModuleState values, but only these module directions and speeds will be shown.

Accepted channel types:

structured SwerveTelemetry, SwerveModuleState

Configuration options:

Title
Rotate chassis per robot’s pose
Show chassis speeds
Maximum linear speed (m/s). Default is 5 m/s
Maximum angular speed (deg/s). Default is 360 deg/s

Line Chart

A line chart widget displays a numeric value as a real-time line chart.

Accepted channel types:

primitive number

Configuration options:

Title
Current value maximum fraction digits
Axis label maximum fraction digits

2D Field

A 2D field widgets displays the pose of the robot on the field. Supports landscape and portrait orientations.

Accepted channel types:

primitive number[] (interpreted as [x (m), y (m), theta (°)])
structured Pose2d, Pose3d
composite Field2d

Configuration options:

Style — field variant
Orientation — landscape 0° or 180°, portrait 90° or 270°
Bumper size (inches) — robot dimensions

FMS

A widget that displays FMS information, including robot state and match information.

This widget comes preconfigured bound to /FMSInfo. You should not typically change the default slot binding.

Match Time

A widget that displays match time, supplemented with the current period and possibly game-specific information.

This widget is designed to work with a custom MatchTime structure that encapsulates information about the match in progress, including game-specific data. See ReflectLib for setup instructions.

Alternatively you can bound this widget to a numeric channel, which is interpreted as the remaining time in seconds.

Accepted cannel types:

primitive number
structured MatchTime

Configuration options:

Title
Show game-specific data
Attention time threshold (pulse animation). Default is 5 seconds
Caution time threshold. Default is 30 seconds
Danger time threshold. Default is 10 seconds

Alerts

A widget that displays persistent WPILIB Alerts.

This widget comes preconfigured bound to /SmartDashboard/Alerts. You can change the default slot binding to any other alerts channel. For example, Choreo publishes its alerts under /SmartDashboard/Choreo Alerts.

Accepted cannel types:

composite Alerts

Configuration options:

Title
Show error alerts
Show warning alerts
Show informational alerts

Power — CTRE PDP

A Power PDP widget displays current and voltage reported by CTRE Power Distribution Panel (PDP).

Accepted cannel types:

composite PowerDistribution

Configuration options:

High-current channel alert threshold (A)
Low-current channel alert threshold (A)

Power — REV PDH

A Power PDH widget displays current and voltage reported by REV Power Distribution Hub (PDH).

Accepted cannel types:

composite PowerDistribution

Configuration options:

High-current channel alert threshold (A)
Low-current channel alert threshold (A)

Camera

A camera widget displays a video stream. This widget does not require data binding.

Configuration options:

Network address (IP or hostname)
Port number (defaults to 1181)

2025 Season Custom Widgets

These widgets have been developed specifically for 2025 FRC season game objectives.

2025 Corals Reef

A 2025 Corals Reef widget provides an interactive mechanism to indicate scoring positions on the reef levels (2-4). It leverages custom data type that captures positions scored, algae presence, and target scoring level.

This widget has been developed to allow operators to assist in scoring and track scoring objectives.

Accepted cannel types:

composite ReefState (custom type)

Configuration options:

Letters visible
Portrait orientation
Ignore target selection

2025 Algae

A 2025 Algae Widget accompanies 2025 Corals Reef widget and allows operator to control algae presence on the reef.

Accepted cannel types:

composite ReefState (custom type)