Hardware Abstraction

Hardware abstraction is the process of separating the physical robot hardware from the code that controls it.

Instead of every part of the code directly controlling motors and servos, hardware is organized behind higher-level interfaces.

The Problem

A beginner codebase often looks like this:

motor.setPower(1);
servo.setPosition(0.5);

These commands directly interact with hardware. As more mechanisms are added, the same hardware may be accessed from many different files.

This creates problems:

• Hardware details are spread throughout the code
• Changing hardware requires changing many files
• Testing individual mechanisms becomes difficult

The Solution

With hardware abstraction, code interacts with robot components instead of individual devices.

Instead of:

flywheelMotor.setVelocity(3500);
hoodServo.setPosition(0.3);

You can write:

shooter.shoot();

The subsystem handles the details of how the shooter works.

Benefits

Easier Hardware Changes

If a motor is replaced, only the subsystem needs to change.

Cleaner Code

OpModes describe what the robot should do rather than how every motor should move.

Better Testing

Individual mechanisms can be tested independently.

Hardware abstraction is the foundation that allows the rest of the robot architecture to work.