Parallax Compass Module 3-Axis HMC5883L (#29133): 16.51 × 18.42 mm board and mounting hole — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/parallax-hmc5883l-29133/  (sheet CC BY 4.0)
Basis: Parallax Compass Module 3-Axis HMC5883L (#29133) product guide, Module Dimensions figure.
Catalog version: 2026-10-20

Overall (mm): length 18.42, width 16.51, height 1.6
- 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.

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- 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
- Parallax / Xon: Parallax 29133 datasheet — web — Publisher's page; dimensions are facts — https://xonstorage.blob.core.windows.net/pdf/parallax_29133rt_apr22_xonlink.pdf

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/parallax-hmc5883l-29133/index.json
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