# Adafruit BME280 breakout (original)

> What are the dimensions of the Adafruit BME280 breakout (original)?

- Category: Electronics › Modules & cameras
- Kind: Modern device
- Basis: Adafruit (Eagle board file)
- Page: https://xemstudio.com/objects/adafruit-bme280-breakout-original/ · JSON: https://xemstudio.com/api/geometry?object=adafruit-bme280-breakout-original · Plain text: https://xemstudio.com/objects/adafruit-bme280-breakout-original/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); linked files under their publishers' licenses
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width |
|---|---|
| 17.78 | 19.05 |

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

## Notes

- Adafruit BME280 breakout (original): 17.78 × 19.05 mm. The original 0.7 × 0.75 in board. The current STEMMA QT version is larger (about 25.4 × 17.8 mm per resellers).
- Mounting holes: 2 × Ø2.2 mm, 12.70 mm apart, 2.54 mm in from the top edge. Hole centres are measured from the lower-left corner.
- The file is the outline with the holes; components and connectors are not modelled.

## Sizes

| dimension | value |
|---|---|
| size | 17.78 × 19.05 mm (board outline) |
| mounting holes | 2 × Ø2.2 mm, 12.70 mm apart, 2.54 mm in from the top edge |

## Where the files are

- Adafruit: [Adafruit BME280 breakout (original)](https://github.com/adafruit/Adafruit-BME280-Breakout-PCB/blob/master/Adafruit%20BME280.brd) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/adafruit-bme280-breakout-original/index.json

- adafruit-bme280-breakout-original-outline: [STEP](https://xemstudio.com/files/hardware/adafruit-bme280-breakout-original/adafruit-bme280-breakout-original-outline.step) · [STL](https://xemstudio.com/files/hardware/adafruit-bme280-breakout-original/adafruit-bme280-breakout-original-outline.stl) — 17.78 × 19.05 mm, 2 × Ø2.2 holes at the published centres; 1.6 mm plate (thickness not published)

## Questions

**How big is the Adafruit BME280 breakout (original)?**

17.78 × 19.05 mm; holes 2 × Ø2.2 mm, 12.70 mm apart, 2.54 mm in from the top edge.

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