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Seeed Studio XIAO ESP32C3

What are the Seeed Studio XIAO ESP32C3 dimensions? · Modern device · basis: Seeed Studio wiki (board size); outline DXF on the same page

Also called: xiao esp32c3, xiao esp32c3 dimensions, xiao esp32c3 size, xiao dimensions, seeed xiao

Exact dimensions. True size, with no printing tolerance added.

length: 21.0 mm
width: 17.8 mm

Notes

XIAO ESP32C3: 21 × 17.8 mm, USB-C on one short edge, castellated pads on both long edges.
Every XIAO shares this outline, so one enclosure or carrier fits all of them; check component height and antenna position per variant.
Seeed publishes the outline as a DXF on the wiki page; thickness and pad positions are not given in text.

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Seeed Studio (official)

XIAO ESP32C3 getting started (specifications)

web

Manufacturer documentation

Xem scan

Not planned The manufacturer publishes CAD; the sheet is here so an assistant can answer without opening a PDF.

Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.

Set it up →

Plain text: sheet.txt · JSON: /api/geometry?object=seeed-xiao-esp32c3

Schematic, not to scale.

Fits with

Free

Seeed Studio XIAO (all variants)21×17.8 mm★ sheet Free

Seeed Studio XIAO ESP32S321.0×17.8 mm★ sheet Free

Seeed Studio XIAO RP204021.0×17.8 mm★ sheet Free

Seeed Studio XIAO SAMD2121.0×17.8 mm★ sheet Free

Seeed Studio XIAO nRF5284021.0×17.8 mm★ sheet

Questions

How big is the Seeed Studio XIAO ESP32C3?

21.0 × 17.8 mm (0.83 × 0.70 in).