{
 "digest": null,
 "links": {
  "fits": [],
  "members": [],
  "cases": [],
  "assemblies": []
 },
 "prints": [],
 "part": {
  "id": "ada-3333-circuit-playground",
  "name": "Circuit Playground Express",
  "kind": "",
  "method": "",
  "vendor": "adafruit",
  "sku": "3333",
  "model": "",
  "buy": [
   "https://www.adafruit.com/product/3333"
  ],
  "url": "https://www.adafruit.com/product/3333",
  "category": "board",
  "owned_qty": 0
 },
 "facts": {
  "id": "ada-3333-circuit-playground",
  "name": "Circuit Playground Express",
  "aka": [
   "CPX"
  ],
  "vendor": "adafruit",
  "sku": "3333",
  "url": "https://www.adafruit.com/product/3333",
  "qty_owned": 1,
  "category": "board",
  "frame": "origin at BOARD CENTER per vendor STEP (circular board), Z=0 PCB bottom",
  "pic": "PXL_20260723_142828091.jpg",
  "body": {
   "size_mm": [
    50.82,
    51.06,
    6.37
   ],
   "outline": "circle",
   "max_height_top": 6.37,
   "max_height_bottom": 0
  },
  "mounting": {
   "holes": "14 castellated pad holes dia 3.2 on BCD 46.36 (measured) - fit M3; no dedicated mounting holes",
   "pattern": "14x on 46.36 BCD, evenly spread with gaps at USB/JST",
   "notes": "enclosures usually clamp the disc edge or use 2-3 pad holes; micro-USB and JST stick out at the +Y-ish edge (see STEP)"
  },
  "ports": [
   {
    "type": "micro-usb",
    "notes": "edge-mounted, see STEP for exact angle/position"
   },
   {
    "type": "jst-ph-2 battery",
    "notes": "adjacent to USB"
   }
  ],
  "electrical": {
   "vin": "5V USB / 1S LiPo / AAA pack",
   "logic_v": 3.3,
   "protocols": [
    "i2c",
    "spi",
    "uart",
    "pwm"
   ],
   "notes": "on-board: 10 NeoPixels, accel, mic, speaker, buttons A/B, slide switch, alligator pads"
  },
  "cad": {
   "file": "ada-3333-circuit-playground.step",
   "fidelity": "vendor",
   "source": "adafruit/Adafruit_CAD_Parts @ ab3dfc47c324, '3333 Circuit Playground Express/...step' (original in ref/)",
   "verified": true
  },
  "sources": [
   {
    "facts": "all geometry",
    "ref": "vendor STEP (measured)",
    "date": "2026-07-23"
   }
  ],
  "confidence": "high - official model; center-origin frame is intentional for circular board"
 },
 "models": [
  {
   "handle": "sarg",
   "fidelity": "vendor",
   "verified": true,
   "visibility": "public",
   "url": "/m/sarg/ada-3333-circuit-playground",
   "files": [
    "ada-3333-circuit-playground.step",
    "part.yaml"
   ]
  }
 ],
 "related": {
  "notes": {
   "exact": [],
   "chip": [],
   "addr": []
  },
  "parts": {
   "variants": [],
   "interface": [],
   "mounting": [],
   "cooccur": [],
   "owners": [],
   "addr": []
  }
 }
}