{
 "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": "particle-photon-2",
 "name": "Particle Photon 2 — Feather-size board outline and 4 × Ø2.54 mounting holes",
 "kind": "modern",
 "category": "Electronic components",
 "group": "Microcontroller boards",
 "year": null,
 "question": "What are the Particle Photon 2 dimensions and mounting-hole positions?",
 "tags": [
  "wi-fi dev board",
  "feather form factor",
  "iot microcontroller",
  "photon 2 case",
  "board mounting holes",
  "ble wifi board"
 ],
 "aliases": [
  "photon 2",
  "particle photon 2",
  "PHN2",
  "particle photon2 dimensions",
  "photon 2 land pattern",
  "particle p2 dev board"
 ],
 "overall_mm": {
  "length": 50.8,
  "width": 22.86,
  "height": 1.6
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/particle-photon-2/",
 "sheet_txt": "https://xemstudio.com/objects/particle-photon-2/sheet.txt",
 "sheet": {
  "basis": "Particle Photon 2 datasheet, Mechanical specifications, recommended PCB land pattern figure.",
  "overall_mm": {
   "length": 50.8,
   "width": 22.86,
   "height": 1.6
  },
  "notes": [
   "Exact nominal dimensions. PCB 22.86 × 50.80 mm (0.9 × 2.0 in), 1.6 mm; datum is the board centre, bottom on z=0.",
   "Four mounting holes Ø2.54 (0.1 in) at (±8.89, ±22.86): a 17.78 × 45.72 mm (0.7 × 1.8 in) pattern, 2.54 mm in from every edge.",
   "Header rows: two single rows of 2.54 mm pitch along the long edges, 20.32 mm (0.8 in) apart, 16 pins on one side and 12 on the other.",
   "Modelled: outline and holes. Not modelled: header pins, radio module, USB connector and U.FL connector (not dimensioned on the datasheet); corners modelled square."
  ],
  "table": {
   "columns": [
    "hole",
    "x mm",
    "y mm",
    "diameter mm"
   ],
   "rows": [
    [
     "1",
     -8.89,
     -22.86,
     2.54
    ],
    [
     "2",
     8.89,
     -22.86,
     2.54
    ],
    [
     "3",
     -8.89,
     22.86,
     2.54
    ],
    [
     "4",
     8.89,
     22.86,
     2.54
    ]
   ]
  }
 },
 "sheet_text": "Particle Photon 2 — Feather-size board outline and 4 × Ø2.54 mounting holes — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/particle-photon-2/  (sheet CC BY 4.0)\nBasis: Particle Photon 2 datasheet, Mechanical specifications, recommended PCB land pattern figure.\nCatalog version: 2026-10-20\n\nOverall (mm): length 50.8, width 22.86, height 1.6\n- Exact nominal dimensions. PCB 22.86 × 50.80 mm (0.9 × 2.0 in), 1.6 mm; datum is the board centre, bottom on z=0.\n- Four mounting holes Ø2.54 (0.1 in) at (±8.89, ±22.86): a 17.78 × 45.72 mm (0.7 × 1.8 in) pattern, 2.54 mm in from every edge.\n- Header rows: two single rows of 2.54 mm pitch along the long edges, 20.32 mm (0.8 in) apart, 16 pins on one side and 12 on the other.\n- Modelled: outline and holes. Not modelled: header pins, radio module, USB connector and U.FL connector (not dimensioned on the datasheet); corners modelled square.\n\nhole  x mm  y mm  diameter mm\n1  -8.89  -22.86  2.54\n2  8.89  -22.86  2.54\n3  -8.89  22.86  2.54\n4  8.89  22.86  2.54\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Particle: Photon 2 datasheet — mechanical specifications — web — Publisher's page; dimensions are facts — https://docs.particle.io/reference/datasheets/wi-fi/photon-2-datasheet/\n- Particle (GitHub): particle-iot hardware-libraries — web — Publisher's page; dimensions are facts — https://github.com/particle-iot/hardware-libraries\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/particle-photon-2/index.json\nAPI: https://xemstudio.com/api/geometry?object=particle-photon-2\n",
 "sources": [
  {
   "publisher": "Particle",
   "title": "Photon 2 datasheet — mechanical specifications",
   "url": "https://docs.particle.io/reference/datasheets/wi-fi/photon-2-datasheet/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Particle (GitHub)",
   "title": "particle-iot hardware-libraries",
   "url": "https://github.com/particle-iot/hardware-libraries",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "adafruit-feather",
  "adafruit-feather-boards",
  "adafruit-feather-esp32-s3",
  "pin-headers-2.54mm",
  "threaded-standoffs-metric",
  "u-fl-connector"
 ],
 "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": "mounting holes",
   "exact": "4 × Ø2.54 on 17.78 × 45.72; PCB 22.86 × 50.80",
   "mates": "M2 or M2.5 screws or standoffs; Adafruit Feather hole pattern",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "header rows",
   "exact": "1 × 16 and 1 × 12, 2.54 pitch, rows 20.32 apart",
   "mates": "2.54 mm female headers or FeatherWing sockets",
   "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": "How big is the Particle Photon 2?",
   "a": "22.86 × 50.80 mm (0.9 × 2.0 in), the Adafruit Feather size."
  },
  {
   "q": "What is the Photon 2 mounting-hole pattern?",
   "a": "Four Ø2.54 mm holes on a 17.78 × 45.72 mm rectangle, 2.54 mm from each edge."
  },
  {
   "q": "How far apart are the Photon 2 header rows?",
   "a": "20.32 mm (0.8 in), 2.54 mm pitch, 16 pins on one side and 12 on the other."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "particle-photon-2",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/particle-photon-2/particle-photon-2.step",
   "stl": "https://xemstudio.com/files/hardware/particle-photon-2/particle-photon-2.stl",
   "note": "Particle Photon 2 — Feather-size board outline and 4 × Ø2.54 mounting holes"
  }
 ],
 "markdown": "https://xemstudio.com/objects/particle-photon-2/index.md"
}