Autonomous
A program that controls the robot by itself after START.
No unexplained acronyms
Robot code glossary
Plain-language definitions for words used throughout the OtterBots Blocks programs.
TeleOp
The part of a match where human drivers control the robot.
OpMode
One selectable robot program. It can be TeleOp or Autonomous.
Telemetry
Information sent from the Robot Controller to the Driver Station screen.
AprilTag
A square visual marker with a unique number that a camera can recognize.
Pose
Position plus rotation. A tag pose describes where the tag is and how it is tilted.
X, Y, Z
Three number lines for left/right, up/down, and forward/back in 3D space.
Yaw
Left/right rotation, like shaking your head “no.”
Pitch
Up/down rotation, like nodding your head “yes.”
Sine and cosine
Triangle functions used to split a tilted distance into parts along different axes.
atan2
A triangle function that finds a signed direction angle from X and Z without dividing by zero.
Normalization
Shrinking all wheel powers equally so none exceeds the legal −1 to +1 range.
Fiducial
A known visual marker used for measurement. An AprilTag is a fiducial.
Frame
One camera picture. The Limelight processes many frames every second.