{
 "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": "parallax-hmc5883l-29133",
 "name": "Parallax Compass Module 3-Axis HMC5883L (#29133): 16.51 × 18.42 mm board and mounting hole",
 "kind": "modern",
 "category": "Electronic components",
 "group": "Modules, sensors & displays",
 "year": null,
 "question": "What are the Parallax HMC5883L compass module (#29133) dimensions and mounting-hole position?",
 "tags": [
  "hmc5883l compass",
  "parallax compass module",
  "3-axis magnetometer board",
  "compass breakout",
  "robot compass sensor"
 ],
 "aliases": [
  "Parallax 29133",
  "Parallax Compass Module 3-Axis HMC5883L",
  "HMC5883L module",
  "parallax hmc5883l dimensions",
  "parallax compass module 3-axis hmc5883l product 29133"
 ],
 "overall_mm": {
  "length": 18.42,
  "width": 16.51,
  "height": 1.6
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/parallax-hmc5883l-29133/",
 "sheet_txt": "https://xemstudio.com/objects/parallax-hmc5883l-29133/sheet.txt",
 "sheet": {
  "basis": "Parallax Compass Module 3-Axis HMC5883L (#29133) product guide, Module Dimensions figure.",
  "overall_mm": {
   "length": 18.42,
   "width": 16.51,
   "height": 1.6
  },
  "notes": [
   "Datum: board centred on X and Y, bottom on z=0; +Y is the 5-pin header edge (GND, VIN, DRDY, SCL, SDA; GND at the +X end).",
   "Board 16.51 × 18.42 mm (0.650 × 0.725 in), 1.6 mm, square corners.",
   "One Ø2.24 (0.088 in) hole at (+0.20, −5.65): centre 8.05 from the +X edge and 14.86 below the +Y edge.",
   "Not modelled: the 5-pad 0.1 in header and the HMC5883L IC on top.",
   "Exact nominal mm."
  ]
 },
 "sheet_text": "Parallax Compass Module 3-Axis HMC5883L (#29133): 16.51 × 18.42 mm board and mounting hole — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/parallax-hmc5883l-29133/  (sheet CC BY 4.0)\nBasis: Parallax Compass Module 3-Axis HMC5883L (#29133) product guide, Module Dimensions figure.\nCatalog version: 2026-10-20\n\nOverall (mm): length 18.42, width 16.51, height 1.6\n- Datum: board centred on X and Y, bottom on z=0; +Y is the 5-pin header edge (GND, VIN, DRDY, SCL, SDA; GND at the +X end).\n- Board 16.51 × 18.42 mm (0.650 × 0.725 in), 1.6 mm, square corners.\n- One Ø2.24 (0.088 in) hole at (+0.20, −5.65): centre 8.05 from the +X edge and 14.86 below the +Y edge.\n- Not modelled: the 5-pad 0.1 in header and the HMC5883L IC on top.\n- Exact nominal mm.\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Parallax / RS: Compass Module 3-Axis HMC5883L (#29133) product guide — web — Publisher's page; dimensions are facts — https://assets.rs-online.com/v1699303166/Datasheets/8628a425f6aefeb9c3d2839c50503327.pdf\n- Parallax / Xon: Parallax 29133 datasheet — web — Publisher's page; dimensions are facts — https://xonstorage.blob.core.windows.net/pdf/parallax_29133rt_apr22_xonlink.pdf\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/parallax-hmc5883l-29133/index.json\nAPI: https://xemstudio.com/api/geometry?object=parallax-hmc5883l-29133\n",
 "sources": [
  {
   "publisher": "Parallax / RS",
   "title": "Compass Module 3-Axis HMC5883L (#29133) product guide",
   "url": "https://assets.rs-online.com/v1699303166/Datasheets/8628a425f6aefeb9c3d2839c50503327.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Parallax / Xon",
   "title": "Parallax 29133 datasheet",
   "url": "https://xonstorage.blob.core.windows.net/pdf/parallax_29133rt_apr22_xonlink.pdf",
   "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": [
  "pin-headers-2.54mm",
  "adafruit-stemma-qt-breakouts",
  "threaded-standoffs-metric",
  "hc-sr04-ultrasonic-sensor",
  "adafruit-bme280-breakout-original"
 ],
 "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 hole",
   "exact": "1 × Ø2.24 (0.088 in)",
   "mates": "#2 or M2 screw to a standoff",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "Header pads",
   "exact": "5 × 0.1 in pitch along +Y edge",
   "mates": "2.54 mm pin header",
   "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 Parallax HMC5883L module?",
   "a": "16.51 × 18.42 mm (0.650 × 0.725 in)."
  },
  {
   "q": "Where is the mounting hole?",
   "a": "One Ø2.24 mm hole, 8.05 mm from the side edge and 14.86 mm below the header edge."
  }
 ],
 "files_license": null,
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   "file": "parallax-hmc5883l-29133",
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   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/parallax-hmc5883l-29133/parallax-hmc5883l-29133.step",
   "stl": "https://xemstudio.com/files/hardware/parallax-hmc5883l-29133/parallax-hmc5883l-29133.stl",
   "note": "Parallax Compass Module 3-Axis HMC5883L (#29133): 16.51 × 18.42 mm board and mounting hole"
  }
 ],
 "markdown": "https://xemstudio.com/objects/parallax-hmc5883l-29133/index.md"
}