{
 "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": "arduino-uno-r4-wifi",
 "name": "Arduino UNO R4 WiFi (ABX00087): board outline, mounting holes and header rows",
 "kind": "modern",
 "category": "Electronic components",
 "group": "Microcontroller boards",
 "year": null,
 "question": "What are the Arduino UNO R4 WiFi board dimensions and mounting-hole positions?",
 "tags": [
  "arduino uno r4 wifi",
  "abx00087",
  "uno r4",
  "arduino board mounting holes",
  "uno form factor",
  "arduino case"
 ],
 "aliases": [
  "Arduino UNO R4 WiFi",
  "ABX00087",
  "UNO R4 WiFi",
  "Arduino R4 WiFi dimensions",
  "UNO R4 mounting holes",
  "Arduino UNO Rev4 WiFi"
 ],
 "overall_mm": {
  "length": 68.58,
  "width": 53.34,
  "height": 10.1
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/arduino-uno-r4-wifi/",
 "sheet_txt": "https://xemstudio.com/objects/arduino-uno-r4-wifi/sheet.txt",
 "sheet": {
  "basis": "Arduino UNO R4 WiFi datasheet ABX00087, section 13 'Mounting Holes And Board Outline' (page 19).",
  "overall_mm": {
   "length": 68.58,
   "width": 53.34,
   "height": 10.1
  },
  "notes": [
   "Datum for the table: board corner at the USB-C edge and power/analog header edge (x along the long side, y across). Board 68.58 × 53.34 × 1.6.",
   "Outline: main right edge at 66.04 with a 2.54 tab to 68.58 between y 5.08 and 38.10, joined by 45° chamfers (standard UNO shape).",
   "Four Ø3.2 holes in the standard UNO pattern (table), the same positions as the UNO R3.",
   "Header rows 8.5 tall above the board, 2.5 deep, 1.3 in from the long edges: digital row x 17.29 to 65.02, power/analog row x 26.42 to 65.02.",
   "Not modelled: USB-C (its top edge 11.01 below the digital-header edge, 3 tall), DC barrel jack, Qwiic connector, ICSP header, ESP32-S3 module and LED matrix; leave clearance for them.",
   "Dimensions are exact nominal (true size), no tolerance added."
  ],
  "table": {
   "columns": [
    "hole",
    "x (mm)",
    "y (mm)",
    "Ø (mm)"
   ],
   "rows": [
    [
     "1",
     "13.97",
     "2.54",
     "3.2"
    ],
    [
     "2",
     "15.24",
     "50.80",
     "3.2"
    ],
    [
     "3",
     "66.04",
     "7.62",
     "3.2"
    ],
    [
     "4",
     "66.04",
     "35.56",
     "3.2"
    ]
   ]
  }
 },
 "sheet_text": "Arduino UNO R4 WiFi (ABX00087): board outline, mounting holes and header rows — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/arduino-uno-r4-wifi/  (sheet CC BY 4.0)\nBasis: Arduino UNO R4 WiFi datasheet ABX00087, section 13 'Mounting Holes And Board Outline' (page 19).\nCatalog version: 2026-10-20\n\nOverall (mm): length 68.58, width 53.34, height 10.1\n- Datum for the table: board corner at the USB-C edge and power/analog header edge (x along the long side, y across). Board 68.58 × 53.34 × 1.6.\n- Outline: main right edge at 66.04 with a 2.54 tab to 68.58 between y 5.08 and 38.10, joined by 45° chamfers (standard UNO shape).\n- Four Ø3.2 holes in the standard UNO pattern (table), the same positions as the UNO R3.\n- Header rows 8.5 tall above the board, 2.5 deep, 1.3 in from the long edges: digital row x 17.29 to 65.02, power/analog row x 26.42 to 65.02.\n- Not modelled: USB-C (its top edge 11.01 below the digital-header edge, 3 tall), DC barrel jack, Qwiic connector, ICSP header, ESP32-S3 module and LED matrix; leave clearance for them.\n- Dimensions are exact nominal (true size), no tolerance added.\n\nhole  x (mm)  y (mm)  Ø (mm)\n1  13.97  2.54  3.2\n2  15.24  50.80  3.2\n3  66.04  7.62  3.2\n4  66.04  35.56  3.2\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Arduino: UNO R4 WiFi datasheet (ABX00087) — web — Publisher's page; dimensions are facts — https://docs.arduino.cc/resources/datasheets/ABX00087-datasheet.pdf\n- Arduino: UNO R4 WiFi documentation — web — Publisher's page; dimensions are facts — https://docs.arduino.cc/hardware/uno-r4-wifi/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/arduino-uno-r4-wifi/index.json\nAPI: https://xemstudio.com/api/geometry?object=arduino-uno-r4-wifi\n",
 "sources": [
  {
   "publisher": "Arduino",
   "title": "UNO R4 WiFi datasheet (ABX00087)",
   "url": "https://docs.arduino.cc/resources/datasheets/ABX00087-datasheet.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
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  },
  {
   "publisher": "Arduino",
   "title": "UNO R4 WiFi documentation",
   "url": "https://docs.arduino.cc/hardware/uno-r4-wifi/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
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 "related": [
  "arduino-uno-r3",
  "arduino-mega-2560",
  "adafruit-metro-grand-central",
  "threaded-standoffs-metric",
  "pin-headers-2.54mm"
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 "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 × Ø3.2, UNO pattern",
   "mates": "M3 standoffs or screws",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "header rows",
   "exact": "2.54 pitch female headers",
   "mates": "Arduino shield pins",
   "fit": "socket",
   "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 Arduino UNO R4 WiFi?",
   "a": "68.58 × 53.34 mm, the same outline as the UNO R3; 10.1 mm tall at the headers."
  },
  {
   "q": "Does the UNO R4 WiFi fit UNO R3 cases?",
   "a": "The outline and the four Ø3.2 mm holes match the UNO R3; the USB-C port replaces USB-B, so the port opening differs."
  }
 ],
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   "file": "arduino-uno-r4-wifi",
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   "license": "CC BY 4.0 (Xem Studio)",
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