pilotcircuits.com

{
  "type": "object",
  "description": "Filters the catalogue and redraws the grid the reader is looking at. Every call replaces the whole filter rather than adding to it, so an omitted argument clears that filter — and a call with no arguments is the way back to all six builds.",
  "properties": {
    "search": {
      "type": "string",
      "description": "Free text over names and goals."
    },
    "difficulty": {
      "type": "array",
      "items": {
        "type": "string",
        "enum": [
          "beginner",
          "intermediate"
        ]
      },
      "description": "Levels a build may be at; several are OR-ed, and an empty array is every level."
    },
    "max_minutes": {
      "type": "number",
      "description": "Upper bound on duration."
    },
    "components": {
      "type": "array",
      "items": {
        "type": "string",
        "enum": [
          "board",
          "breadboard",
          "sensor",
          "servo",
          "led",
          "resistor"
        ]
      },
      "description": "Component ids the build must use at least one of."
    },
    "concepts": {
      "type": "array",
      "items": {
        "type": "string",
        "enum": [
          "digitalPins",
          "analogReading",
          "triggerEcho",
          "pwmServo",
          "ledPolarity",
          "distanceMeasurement",
          "conditionalLogic",
          "mechanicalCalibration",
          "testing",
          "thresholds",
          "serialOutput",
          "timing"
        ]
      },
      "description": "Learning-goal ids the build must teach at least one of."
    },
    "ready_only": {
      "type": "boolean",
      "description": "Only builds that have a guided workbench."
    }
  },
  "additionalProperties": false
}