Adafruit
Adafruit LPS22 Pressure Sensor - STEMMA QT / Qwiic - LPS22HB
The Adafruit LPS22 Pressure Sensor Breakout features the ST LPS22HB — a tiny absolute barometric pressure sensor capable of measuring atmospheric pressure fr...
The Adafruit LPS22 Pressure Sensor Breakout features the ST LPS22HB — a tiny absolute barometric pressure sensor capable of measuring atmospheric pressure from 260 to 1260 hPa. Use it for weather monitoring, altitude estimation, or any application where precise air pressure data matters.
Despite its miniature 2×2 mm package, the LPS22 delivers 24-bit pressure measurements at up to 75 Hz, with accuracy within 0.1 hPa after one-point calibration. This STEMMA QT breakout adds level shifting and voltage regulation, making it compatible with both 3.3 V and 5 V systems — no soldering required with STEMMA QT/Qwiic cables.
Key Features
- Wide Pressure Range – 260 to 1260 hPa absolute pressure measurement
- 24-Bit Resolution – High-precision pressure data at up to 75 Hz
- ±0.1 hPa Accuracy – After one-point calibration (±1 hPa before calibration)
- Ultra-Compact Sensor – 2×2 mm LPS22HB, one of the smallest pressure sensors available
- 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 libraries with example code
Ideal For
- Weather stations and barometric pressure monitoring
- Altitude estimation and indoor navigation
- Wearable devices and smartwatch projects
- Environmental sensing and data logging
Package Contents
- 1× Adafruit LPS22 Pressure Sensor Breakout (STEMMA QT)
Resources
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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