{
 "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": "dfrobot-firebeetle-2-esp32-e-dfr0654",
 "name": "DFRobot FireBeetle 2 ESP32-E (DFR0654) — board outline, 4 × Ø2.0 mounting holes, USB-C and module",
 "kind": "modern",
 "category": "Electronic components",
 "group": "Microcontroller boards",
 "year": null,
 "question": "What are the DFRobot FireBeetle 2 ESP32-E dimensions and mounting-hole positions?",
 "tags": [
  "esp32 board",
  "iot development board",
  "esp32-e dev board",
  "firebeetle case",
  "microcontroller mounting holes",
  "low power esp32"
 ],
 "aliases": [
  "dfrobot firebeetle 2",
  "firebeetle 2 esp32-e",
  "DFR0654",
  "firebeetle esp32-e",
  "firebeetle 2 dimensions",
  "DFR0654-F",
  "dfrobot esp32"
 ],
 "overall_mm": {
  "length": 61.47,
  "width": 25.4,
  "height": 6.62
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/dfrobot-firebeetle-2-esp32-e-dfr0654/",
 "sheet_txt": "https://xemstudio.com/objects/dfrobot-firebeetle-2-esp32-e-dfr0654/sheet.txt",
 "sheet": {
  "basis": "DFRobot's DFR0654 3D STEP model v1.0, with 25.4 × 60.0 mm confirmed by the DFR0654 dimension drawing v1.0 (DFRobot wiki).",
  "overall_mm": {
   "length": 61.47,
   "width": 25.4,
   "height": 6.62
  },
  "notes": [
   "Exact nominal dimensions. PCB 25.4 × 60.0 × 1.6 mm, R1.5 corners; datum is the board centre, bottom on z=0; +Y is the USB-C end, −Y the ESP32 antenna end.",
   "Four mounting holes Ø2.0 at (±11.0, ±28.3): a 22.0 × 56.6 mm pattern.",
   "USB-C receptacle 9.0 mm wide at x −4.5…+4.5, protruding 1.47 mm past the +Y edge, top 3.8 mm above the board bottom.",
   "Tallest part: PH2.0 battery connector at x +5.26…+12.7 (flush with the +X edge), y +11.64…+19.64, top at 6.62 mm. ESP32-WROOM-32E module flush with the −Y edge, shield can top at 4.62 mm.",
   "Not modelled: the 1×16 and 1×12 pin headers (ship unsoldered), castellated pads, RST/BOOT buttons, GDI display connector and small parts."
  ],
  "table": {
   "columns": [
    "hole",
    "x mm",
    "y mm",
    "diameter mm"
   ],
   "rows": [
    [
     "1",
     -11,
     28.3,
     2
    ],
    [
     "2",
     11,
     28.3,
     2
    ],
    [
     "3",
     -11,
     -28.3,
     2
    ],
    [
     "4",
     11,
     -28.3,
     2
    ]
   ]
  }
 },
 "sheet_text": "DFRobot FireBeetle 2 ESP32-E (DFR0654) — board outline, 4 × Ø2.0 mounting holes, USB-C and module — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/dfrobot-firebeetle-2-esp32-e-dfr0654/  (sheet CC BY 4.0)\nBasis: DFRobot's DFR0654 3D STEP model v1.0, with 25.4 × 60.0 mm confirmed by the DFR0654 dimension drawing v1.0 (DFRobot wiki).\nCatalog version: 2026-10-20\n\nOverall (mm): length 61.47, width 25.4, height 6.62\n- Exact nominal dimensions. PCB 25.4 × 60.0 × 1.6 mm, R1.5 corners; datum is the board centre, bottom on z=0; +Y is the USB-C end, −Y the ESP32 antenna end.\n- Four mounting holes Ø2.0 at (±11.0, ±28.3): a 22.0 × 56.6 mm pattern.\n- USB-C receptacle 9.0 mm wide at x −4.5…+4.5, protruding 1.47 mm past the +Y edge, top 3.8 mm above the board bottom.\n- Tallest part: PH2.0 battery connector at x +5.26…+12.7 (flush with the +X edge), y +11.64…+19.64, top at 6.62 mm. ESP32-WROOM-32E module flush with the −Y edge, shield can top at 4.62 mm.\n- Not modelled: the 1×16 and 1×12 pin headers (ship unsoldered), castellated pads, RST/BOOT buttons, GDI display connector and small parts.\n\nhole  x mm  y mm  diameter mm\n1  -11.0  28.3  2.0\n2  11.0  28.3  2.0\n3  -11.0  -28.3  2.0\n4  11.0  -28.3  2.0\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- DFRobot: FireBeetle 2 ESP32-E (DFR0654) wiki — dimension drawing and STEP — web — Publisher's page; dimensions are facts — https://wiki.dfrobot.com/FireBeetle_Board_ESP32_E_SKU_DFR0654\n- CPC Farnell: DFRobot DFR0654 FireBeetle 2 ESP32-E — web — Publisher's page; dimensions are facts — https://cpc.farnell.com/dfrobot/dfr0654/firebeetle-2-esp32-e-iot-microcontroller/dp/SC21018\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/dfrobot-firebeetle-2-esp32-e-dfr0654/index.json\nAPI: https://xemstudio.com/api/geometry?object=dfrobot-firebeetle-2-esp32-e-dfr0654\n",
 "sources": [
  {
   "publisher": "DFRobot",
   "title": "FireBeetle 2 ESP32-E (DFR0654) wiki — dimension drawing and STEP",
   "url": "https://wiki.dfrobot.com/FireBeetle_Board_ESP32_E_SKU_DFR0654",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "CPC Farnell",
   "title": "DFRobot DFR0654 FireBeetle 2 ESP32-E",
   "url": "https://cpc.farnell.com/dfrobot/dfr0654/firebeetle-2-esp32-e-iot-microcontroller/dp/SC21018",
   "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": [
  "esp32-devkitc",
  "adafruit-feather-esp32-s3",
  "jst-ph-connector",
  "pin-headers-2.54mm",
  "threaded-standoffs-metric",
  "wemos-lolin-s2-mini-esp32-s2"
 ],
 "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 × Ø2.0 on 22.0 × 56.6; PCB 25.4 × 60.0 × 1.6",
   "mates": "M2 screws or M2 standoffs",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "USB-C port",
   "exact": "9.0 wide, top 3.8 above board bottom, 1.47 past the +Y edge",
   "mates": "USB-C cable opening in the case end wall",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "battery connector",
   "exact": "JST PH 2.0 at the +X edge, top 6.62",
   "mates": "LiPo lead with JST PH plug",
   "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 FireBeetle 2 ESP32-E?",
   "a": "25.4 × 60.0 mm PCB, 1.6 mm thick; 61.47 mm long including the USB-C overhang, 6.62 mm tall at the battery connector."
  },
  {
   "q": "What is the FireBeetle 2 ESP32-E hole pattern?",
   "a": "Four Ø2.0 mm holes on a 22.0 × 56.6 mm rectangle, centred on the board."
  },
  {
   "q": "Where is the USB-C port?",
   "a": "Centred on the +Y short edge, 9.0 mm wide, sticking out 1.47 mm, top 3.8 mm above the board bottom."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "dfrobot-firebeetle-2-esp32-e-dfr0654",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/dfrobot-firebeetle-2-esp32-e-dfr0654/dfrobot-firebeetle-2-esp32-e-dfr0654.step",
   "stl": "https://xemstudio.com/files/hardware/dfrobot-firebeetle-2-esp32-e-dfr0654/dfrobot-firebeetle-2-esp32-e-dfr0654.stl",
   "note": "DFRobot FireBeetle 2 ESP32-E (DFR0654) — board outline, 4 × Ø2.0 mounting holes, USB-C and module"
  }
 ],
 "markdown": "https://xemstudio.com/objects/dfrobot-firebeetle-2-esp32-e-dfr0654/index.md"
}