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394 lessons across 11 departments, from swerve geometry to the Impact Award essay. Written by a high-school student who needed this and could not find it.

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© 2026 LearnFRC. Built by Jahaan Pardhanani. Not affiliated with or endorsed by FIRST®.Privacy Terms394 lessons / 11 departments© 2026

note on accuracy

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PID

PID Controller

A feedback control loop (Proportional-Integral-Derivative) that drives a mechanism to a target by reacting to error.

also calledClosed-loop controlPID loop

Read the full guide Official source

where you actually meet PID

PID is how an arm holds a position instead of slamming into a hard stop. You meet it the first time a mechanism overshoots, oscillates, or sags under gravity — and then you meet the tuning process, which is a methodical loop of raising kP until it oscillates, adding kD to damp that out, and using kI sparingly, if at all.

Lessons that use PID

Free and structured, and none of them need an account to read.

3lessons

Programming, Controls & Sensors
Closed-Loop Control: PID, Feedforward, and SysId

Open Loop vs Closed Loop, and the PID Controller

What feedback control is and how the three PID terms (kP, kI, kD) shape a mechanism's response.open Getting Started with FRC
Advanced Techniques & Case Studies

Closed-Loop Control: PID + Feedforward for a Consistent Shot

Replace open-loop guessing with characterized feedforward and PID so your Fuel launcher hits target RPM every shot.open Programming, Controls & Sensors
Motors, Sensors, and Closed-Loop Control

PID Feedback Control

Use PID controllers to drive a mechanism to a setpoint, and understand what each gain does.open

Filed next to it

the jargon travels in packs

Software

Feedforward

Control that predicts the output needed (e.g., to overcome gravity or reach a velocity) and is combined with PID for accuracy.

Sensors & Controls

Encoder

A sensor that measures rotation/position of a shaft, essential for closed-loop control and odometry.

Software

Command-Based Programming

WPILib's recommended structure that organizes robot code into Subsystems and Commands for clean, reusable behavior.

Software

Choreo

A trajectory-optimization tool that generates time-optimal autonomous paths, often paired with WPILib.

PID Controller is one of 70 entries in the catalogue. The guides are where these words get used in order, instead of one at a time.

Back to the catalogue Browse the guides