{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "adafruit-neopixel-ring-16-1463",
 "name": "Adafruit NeoPixel Ring 16 (#1463): Ø44.45 × Ø31.75 mm ring and LED positions",
 "kind": "modern",
 "category": "Electronic components",
 "group": "Switches, relays & indicators",
 "year": null,
 "question": "What are the Adafruit NeoPixel Ring 16 (product 1463) dimensions and LED positions?",
 "tags": [
  "neopixel ring 16",
  "ws2812b led ring 16",
  "16 led ring dimensions",
  "neopixel ring diameter",
  "led ring mount",
  "ws2812b ring"
 ],
 "aliases": [
  "Adafruit NeoPixel Ring 16",
  "Adafruit 1463",
  "NeoPixel Ring - 16 x 5050 RGB LED",
  "WS2812B LED ring 16",
  "16 LED NeoPixel ring",
  "16-pixel WS2812 ring",
  "neopixel 16 ring"
 ],
 "overall_mm": {
  "length": 44.45,
  "width": 44.45,
  "height": 3.6
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/adafruit-neopixel-ring-16-1463/",
 "sheet_txt": "https://xemstudio.com/objects/adafruit-neopixel-ring-16-1463/sheet.txt",
 "sheet": {
  "basis": "Adafruit's EagleCAD board file for the NeoPixel Ring 16 and the NeoPixel Überguide ring page (3.6 mm total thickness).",
  "overall_mm": {
   "length": 44.45,
   "width": 44.45,
   "height": 3.6
  },
  "notes": [
   "Flat ring PCB: outer Ø44.450, bore Ø31.750, centred, board bottom at 0, LEDs facing up. Board thickness 1.6 is taken from Adafruit's Überguide note (1.6 PCB + 2 mm LEDs) and is not stated in the board file.",
   "16 WS2812B LEDs, 5.0 × 5.0, standing 2.0 above the board (top at 3.6), centred on a Ø37.592 circle every 22.5°, LED 1 at (0, +18.796).",
   "No mounting holes: hold the ring by its outer edge, its bore or its back face.",
   "Not modelled: the wire/solder pads on the back and the breakaway-tab stubs on the rim.",
   "All dimensions are exact nominal millimetres, true size, with no tolerance added."
  ]
 },
 "sheet_text": "Adafruit NeoPixel Ring 16 (#1463): Ø44.45 × Ø31.75 mm ring and LED positions — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/adafruit-neopixel-ring-16-1463/  (sheet CC BY 4.0)\nBasis: Adafruit's EagleCAD board file for the NeoPixel Ring 16 and the NeoPixel Überguide ring page (3.6 mm total thickness).\nCatalog version: 2026-10-20\n\nOverall (mm): length 44.45, width 44.45, height 3.6\n- Flat ring PCB: outer Ø44.450, bore Ø31.750, centred, board bottom at 0, LEDs facing up. Board thickness 1.6 is taken from Adafruit's Überguide note (1.6 PCB + 2 mm LEDs) and is not stated in the board file.\n- 16 WS2812B LEDs, 5.0 × 5.0, standing 2.0 above the board (top at 3.6), centred on a Ø37.592 circle every 22.5°, LED 1 at (0, +18.796).\n- No mounting holes: hold the ring by its outer edge, its bore or its back face.\n- Not modelled: the wire/solder pads on the back and the breakaway-tab stubs on the rim.\n- All dimensions are exact nominal millimetres, true size, with no tolerance added.\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Adafruit: NeoPixel Ring - 16 x 5050 RGB LED with Integrated Drivers (#1463) — web — Publisher's page; dimensions are facts — https://www.adafruit.com/product/1463\n- Adafruit: Adafruit-NeoPixel-Ring repository — web — Publisher's page; dimensions are facts — https://github.com/adafruit/Adafruit-NeoPixel-Ring\n- Adafruit Learning System: Adafruit NeoPixel Überguide: NeoPixel Rings — web — Publisher's page; dimensions are facts — https://learn.adafruit.com/adafruit-neopixel-uberguide/neopixel-rings\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/adafruit-neopixel-ring-16-1463/index.json\nAPI: https://xemstudio.com/api/geometry?object=adafruit-neopixel-ring-16-1463\n",
 "sources": [
  {
   "publisher": "Adafruit",
   "title": "NeoPixel Ring - 16 x 5050 RGB LED with Integrated Drivers (#1463)",
   "url": "https://www.adafruit.com/product/1463",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Adafruit",
   "title": "Adafruit-NeoPixel-Ring repository",
   "url": "https://github.com/adafruit/Adafruit-NeoPixel-Ring",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Adafruit Learning System",
   "title": "Adafruit NeoPixel Überguide: NeoPixel Rings",
   "url": "https://learn.adafruit.com/adafruit-neopixel-uberguide/neopixel-rings",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
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  "sheet_free": true,
  "mesh_price_usd": null,
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  "tolerance_mm": null
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 "related": [
  "adafruit-neopixel-rings-matrices",
  "adafruit-feather-boards",
  "adafruit-qt-py-itsybitsy-trinket",
  "adafruit-metro-mini-328",
  "adafruit-breakouts-cables-proto"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no tolerance added)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no tolerance added. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn. Typical accuracy by process and ISO 286 fits: https://xemstudio.com/tolerances/",
 "mating": [
  {
   "feature": "Outer edge",
   "exact": "Ø44.450 × 1.6",
   "mates": "pocket, lip or edge clips in a housing",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "Bore",
   "exact": "Ø31.750",
   "mates": "centring boss or hub through the ring",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "LED circle",
   "exact": "16 × 5.0 × 5.0 on Ø37.592, top 3.6",
   "mates": "diffuser or light-pipe ring",
   "fit": "designed",
   "files": "all"
  }
 ],
 "fit_classes": {
  "press": "stays put: pin, tube, bearing or magnet held by interference. ISO 286 equivalent: H7/p6 (locational interference) or tighter.",
  "slide": "assembles by hand and is held by a grub, pinch or clamp: shaft in a hub, rod in a socket, spigot in a bore. ISO 286 equivalent: H7/g6 or H7/h6.",
  "run": "turns or slides in use: pin in a link, rod through a guide. ISO 286 equivalent: H8/f7 (close running).",
  "socket": "large sliding fit: syringe barrel, sleeve, bobbin in a bore. ISO 286 equivalent: H9/d9 (free running) or looser.",
  "clamp": "split part that closes on the mating part with screws: make it at size.",
  "designed": "a gap that is part of the design (piston fit option, displacer gap, air gap): do not change."
 },
 "faq": [
  {
   "q": "What size is the NeoPixel Ring 16?",
   "a": "Outer Ø44.45 mm, inner Ø31.75 mm, 3.6 mm thick (1.6 mm board plus 2.0 mm LEDs)."
  },
  {
   "q": "Where are the LEDs on the 16 ring?",
   "a": "16 LEDs, 5.0 × 5.0 mm, on a Ø37.59 mm circle, one every 22.5°."
  },
  {
   "q": "Does the NeoPixel Ring 16 have mounting holes?",
   "a": "No. Mount it by the outer edge, the bore or the back face."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "adafruit-neopixel-ring-16-1463",
   "formats": [
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   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/adafruit-neopixel-ring-16-1463/adafruit-neopixel-ring-16-1463.step",
   "stl": "https://xemstudio.com/files/hardware/adafruit-neopixel-ring-16-1463/adafruit-neopixel-ring-16-1463.stl",
   "note": "Adafruit NeoPixel Ring 16 (#1463): Ø44.45 × Ø31.75 mm ring and LED positions"
  }
 ],
 "markdown": "https://xemstudio.com/objects/adafruit-neopixel-ring-16-1463/index.md"
}