Adafruit
Adafruit LPS28 (LPS28DFW) Pressure Sensor - STEMMA QT / Qwiic
· MPN: ADA6067
The Adafruit LPS28 Pressure Sensor Breakout features the ST LPS28DFW — a barometric pressure sensor with an extended range up to 4060 hPa, far beyond the ~12...
The Adafruit LPS28 Pressure Sensor Breakout features the ST LPS28DFW — a barometric pressure sensor with an extended range up to 4060 hPa, far beyond the ~1260 hPa limit of most competing sensors. This makes it suitable for underwater depth sensing (up to ~40 metres) as well as standard altitude and weather monitoring.
With 24-bit resolution, ±0.5 hPa accuracy at the highest quality settings (less than 1 cm altitude resolution), and up to 200 samples per second, the LPS28 delivers exceptional precision and speed. The sensor includes a metal port for connecting thin tubing and features potting gel rated for up to 10,000 hPa with chemical resistance — check the datasheet for compatibility details.
Key Features
- Extended Pressure Range – Measures from 260 to 4060 hPa (equivalent to ~40 m underwater)
- 24-Bit Resolution – ±0.5 hPa accuracy at highest quality, less than 1 cm altitude precision
- Up to 200 Hz Sample Rate – Fast unfiltered readings for dynamic applications
- Ported Sensor Design – Metal port for connecting tubing to measure remote pressure sources
- Chemical-Resistant Potting – Gel rated to 10,000 hPa with protection against harsh chemicals
- STEMMA QT / Qwiic – Solderless I2C connectors for easy plug-and-play wiring
- 3.3 V and 5 V Compatible – Onboard voltage regulator and level shifting
- Arduino & CircuitPython Libraries – Ready-to-use drivers with example code
Ideal For
- Underwater depth sensing for ROVs and submersible robots
- High-precision altitude measurement
- Weather stations and barometric monitoring
- Industrial pressure measurement via tubing
Package Contents
- 1× Adafruit LPS28 (LPS28DFW) Pressure Sensor Breakout (STEMMA QT)
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- CircuitPython
- A beginner-friendly version of Python designed to run directly on microcontroller boards. If a product supports CircuitPython, you can often program it by copying code files onto the board rather than setting up a more complex toolchain.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
- STEMMA QT
- A small plug-in connector system for I2C boards that lets you connect compatible sensors and controllers without soldering. It matters because it can make wiring faster and less error-prone, especially when adding several small modules to a project.
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