{
 "digest": null,
 "links": {
  "fits": [],
  "members": [],
  "cases": [],
  "assemblies": []
 },
 "prints": [],
 "part": {
  "id": "ada-2890-featherwing-doubler",
  "name": "FeatherWing Doubler (prototyping plate)",
  "kind": "",
  "method": "",
  "vendor": "adafruit",
  "sku": "2890",
  "model": "",
  "buy": [
   "https://www.adafruit.com/product/2890"
  ],
  "url": "https://www.adafruit.com/product/2890",
  "category": "board",
  "owned_qty": 0
 },
 "facts": {
  "id": "ada-2890-featherwing-doubler",
  "name": "FeatherWing Doubler (prototyping plate)",
  "vendor": "adafruit",
  "sku": "2890",
  "url": "https://www.adafruit.com/product/2890",
  "qty_owned": 1,
  "category": "board",
  "frame": "origin PCB plan bottom-left per vendor STEP, Z=0 PCB bottom (bare PCB model)",
  "body": {
   "size_mm": [
    50.8,
    46.99,
    1.57
   ],
   "outline": "rounded-rect",
   "pcb_thickness": 1.57,
   "notes": "bare-PCB model; with headers + a Feather each side allow ~15 stack height"
  },
  "mounting": {
   "holes": [
    {
     "xy": [
      2.54,
      2.54
     ],
     "dia": 2.5
    },
    {
     "xy": [
      2.54,
      20.32
     ],
     "dia": 2.5
    },
    {
     "xy": [
      48.26,
      2.54
     ],
     "dia": 2.5
    },
    {
     "xy": [
      48.26,
      20.32
     ],
     "dia": 2.5
    },
    {
     "xy": [
      2.54,
      26.67
     ],
     "dia": 2.5
    },
    {
     "xy": [
      2.54,
      44.45
     ],
     "dia": 2.5
    },
    {
     "xy": [
      48.26,
      26.67
     ],
     "dia": 2.5
    },
    {
     "xy": [
      48.26,
      44.45
     ],
     "dia": 2.5
    }
   ],
   "pattern": "two Feather 45.72 x 17.78 sets, row gap 6.35",
   "notes": "8 holes = 2 Feather footprints side by side; posts through any 4 corners hold it"
  },
  "electrical": {
   "notes": "passive interconnect"
  },
  "cad": {
   "file": "ada-2890-featherwing-doubler.step",
   "fidelity": "vendor",
   "source": "adafruit/Adafruit_CAD_Parts @ ab3dfc47c324, '2890 Doubler FeatherWing/...step' (original in ref/)",
   "verified": true
  },
  "sources": [
   {
    "facts": "all geometry",
    "ref": "vendor STEP (measured)",
    "date": "2026-07-23"
   }
  ],
  "confidence": "high"
 },
 "models": [
  {
   "handle": "sarg",
   "fidelity": "vendor",
   "verified": true,
   "visibility": "public",
   "url": "/m/sarg/ada-2890-featherwing-doubler",
   "files": [
    "ada-2890-featherwing-doubler.step",
    "part.yaml"
   ]
  }
 ],
 "related": {
  "notes": {
   "exact": [],
   "chip": [],
   "addr": []
  },
  "parts": {
   "variants": [],
   "interface": [],
   "mounting": [
    {
     "product": "ada-2927-motor-featherwing",
     "name": "DC Motor + Stepper FeatherWing",
     "why": "pattern 17.78x45.72 mm",
     "url": "/p/ada-2927-motor-featherwing"
    },
    {
     "product": "ada-2928-servo-featherwing",
     "name": "8-Channel PWM/Servo FeatherWing",
     "why": "pattern 17.78x45.72 mm",
     "url": "/p/ada-2928-servo-featherwing"
    },
    {
     "product": "ada-3417-featherwing-tripler",
     "name": "FeatherWing Tripler (prototyping plate)",
     "why": "pattern 17.78x45.72 mm",
     "url": "/p/ada-3417-featherwing-tripler"
    },
    {
     "product": "ada-4884-feather-rp2040",
     "name": "Adafruit Feather RP2040",
     "why": "pattern 17.78x45.72 mm",
     "url": "/p/ada-4884-feather-rp2040"
    },
    {
     "product": "ada-5650-feather-scorpio",
     "name": "Adafruit Feather RP2040 SCORPIO (8-ch NeoPixel)",
     "why": "pattern 17.78x45.72 mm",
     "url": "/p/ada-5650-feather-scorpio"
    },
    {
     "product": "ada-5743-gamepad-qt",
     "name": "Adafruit Mini I2C Gamepad (seesaw, STEMMA QT)",
     "why": "pattern 17.78x45.72 mm",
     "url": "/p/ada-5743-gamepad-qt"
    }
   ],
   "cooccur": [],
   "owners": [],
   "addr": []
  }
 }
}