DFRobot FireBeetle 2 ESP32-E (DFR0654) — board outline, 4 × Ø2.0 mounting holes, USB-C and module — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/dfrobot-firebeetle-2-esp32-e-dfr0654/  (sheet CC BY 4.0)
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).
Catalog version: 2026-10-20

Overall (mm): length 61.47, width 25.4, height 6.62
- 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.

hole  x mm  y mm  diameter mm
1  -11.0  28.3  2.0
2  11.0  28.3  2.0
3  -11.0  -28.3  2.0
4  11.0  -28.3  2.0

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- 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
- 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

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/dfrobot-firebeetle-2-esp32-e-dfr0654/index.json
API: https://xemstudio.com/api/geometry?object=dfrobot-firebeetle-2-esp32-e-dfr0654