Removed features¶

LabVIEW¶

LabVIEW is not currently supported on Systemcore. Old LabVIEW docs can be found here.

NetworkTables 3¶

Removed since NetworkTables 4 has been out for a few years and is a better protocol bandwidth-wise.

Java tools¶

All Java GUI tools have been removed due to lack of maintenance.

Shuffleboard¶

Use Elastic as a driver dashboard and use AdvantageScope for debugging and data visualization.

SmartDashboard¶

In addition to lack of maintenance, SmartDashboard uses the NT3 protocol, which has been removed, and SmartDashboard does not support modern platforms used in FRC. Instead, use Elastic as a driver dashboard and use AdvantageScope for debugging and data visualization.

RobotBuilder¶

No replacement. There are many upcoming codegen projects however.

PathWeaver¶

PathWeaver has been removed for 2027 due to its lack of swerve support and lack of a maintainer. Use Choreo, PathPlanner, or Bline instead.

roboRIO Team Number Setter¶

Config for Systemcore will be handled via the web interface.

WPILib Standalone Utility¶

Removed because of low use.

Hardware¶

Relay¶

Systemcore doesn’t support Relays.

Analog Output¶

Systemcore doesn’t support Analog Outputs.

Analog Gyro¶

Systemcore doesn’t support Analog Gyros.

SPI¶

Systemcore doesn’t support SPI. Several IMUs that WPILib had built-in support for also used SPI, and therefore also aren’t supported on Systemcore. IMUs that were removed:

ADIS16448
ADIS16470
ADXL345
ADXRS450

DigitalGlitchFilter¶

Systemcore doesn’t support DigitalGlitchFilter.

Analog Trigger¶

Systemcore doesn’t support Analog Triggers.

DMA¶

Systemcore doesn’t support DMA.

Counter¶

Systemcore doesn’t support Counters.

Servo¶

Systemcore doesn’t have the ability to give servos the power they demand.

Ultrasonic¶

Systemcore doesn’t support Ultrasonic because it doesn’t support Counters.

DigitalSource¶

Digital IO works differently on Systemcore and DigitalSource was removed as part of the transition.

Interrupts¶

Systemcore doesn’t support Interrupts.

Axis Camera¶

Explicit support removed because it required special software support, and Usage Reporting indicated extremely few users. Usage is still possible with HttpCamera.

Nidec Dynamo Brushless¶

Support removed because per https://community.firstinspires.org/more-reefscape-by-the-numbers-new-legal-devices, zero teams used it, and because Systemcore doesn’t support its control method.

RamseteController/RamseteCommand¶

Use LTV Unicycle Controller, which has more intuitive tuning.

Control commands/subsytems¶

PIDCommand, ProfiledPIDCommand, TrapezoidProfileCommand, and their subsystem counterparts have been removed for being poor abstractions. Instead, use PIDController/ProfiledPIDController/TrapezoidProfile themselves in commands/subsystems.

Mutable Java units¶

Mutable Java units can cause many confusing issues if used incorrectly, and only exist because of the roboRIO’s lack of RAM. Systemcore has enough RAM to handle immutable units.

`robotInit()`¶

Use a constructor instead.

`MathUtil.clamp()`¶

Use Math.clamp() instead.

`Pose2/3d.exp(Twist2/3d)`¶

Use Pose2/3d.plus(Twist2/3d.exp()) instead.