{
  "id": "ev3-gripp3r",
  "name": "GRIPP3R",
  "family": "ev3",
  "kit": "LEGO MINDSTORMS EV3 31313",
  "robotKind": "gripper_drive",
  "source": {
    "portMap": "official-build-instructions",
    "url": "https://www.lego.com/en-us/themes/mindstorms/learntoprogram"
  },
  "controller": {
    "model": "EV3 Brick 31313",
    "firmware": "pybricks-or-ev3dev",
    "connection": ["usb", "bluetooth", "wifi"]
  },
  "ports": {
    "A": { "kind": "motor", "part": "medium-motor", "role": "gripper_claw" },
    "B": { "kind": "motor", "part": "large-motor", "role": "left_drive" },
    "C": { "kind": "motor", "part": "large-motor", "role": "right_drive", "positiveDirection": "counterclockwise" },
    "1": { "kind": "sensor", "part": "ultrasonic-sensor", "role": "obstacle_detection" },
    "4": { "kind": "sensor", "part": "gyro-sensor", "role": "orientation" }
  },
  "sensors": [
    { "kind": "ultrasonic", "source": "Port.S1" },
    { "kind": "gyro", "source": "Port.S4" }
  ],
  "probeSignature": {
    "version": 1,
    "expectedActivePorts": ["A", "B", "C"],
    "features": ["drive_pair", "gripper_motor", "ultrasonic_sensor", "gyro_sensor"]
  },
  "programTargets": ["pybricks-ev3", "ev3dev-python"],
  "crossGenNotes": "Gripper morphology — equivalent concept to NXT Tribot claw (nxt-tribot) and Robot Inventor custom gripper builds.",
  "license": "CC-BY-4.0"
}