SparkFun

SparkFun Absolute Digital Barometer - LPS28DFW (Qwiic)

Name: SparkFun Absolute Digital Barometer - LPS28DFW (Qwiic)
Brand: SparkFun
SKU: SF-SEN-21221
Price: 46.65 AUD
Availability: InStock

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The SparkFun Qwiic LPS28DFW Absolute Digital Barometer offers a unique barometer breakout featuring the LPS28DFW from STMicroelectronics©. The LPS28DFW is an...

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The SparkFun Qwiic LPS28DFW Absolute Digital Barometer offers a unique barometer breakout featuring the LPS28DFW from STMicroelectronics^©. The LPS28DFW is an absolute barometer with a water-resistant package making it perfect for pressure measurement applications where the sensor is exposed to or even submerged in water. The Qwiic system allows for integration into your I²C system with no soldering required. This Qwiic breakout also includes 0.1"-spaced PTH pins connected to the sensor's communication interface and interrupt pins for applications that require a traditional soldered connection.

The sensor has two full-scale measurement ranges of 260 - 1260hPa and 260 - 4060hPa with an absolute pressure accuracy of 0.5hPa. The LPS28DFW is composed of a piezoresistive pressure sensor with a metal lid and gel encasing to protect the sensing elements from water and other environmental hazards.

Important! While the LPS28DFW is protected from water, the rest of the components on these breakouts are not protected by any conformal coating and can be damaged by exposure to liquids. Users who intend to use these breakouts in applications where the board may be exposed to water or other liquids should apply a conformal coating to the board or place it in a sealed container prior to use.

The SparkFun Qwiic Connect System is an ecosystem of I²C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.

Get Started with the SparkFun Qwiic LPS28DFW Absolute Digital Barometer Guide

Features:

Supply voltage range
- 1.7 - 3.6V
Current consumption
- One shot mode: ~1.7 - 32.2µA
- Continuous mode: ~2.5 - 783.8µA
I²C interface (Qwiic-enabled)
I²C addresses
- 0x5C (Default), 0x5D
Water-resistant sensor package
Dual pressure ranges
- Mode 1: 260 - 1260hPa
- Mode 2: 260 - 4060hPa
Interrupt features
- Data-ready
- FIFO flags
- Pressure threshold
Output data rate range
- 1 - 200Hz
2x Qwiic Horizontal Connectors

Documents:

Jargon buster

Plain-language definitions for the technical terms used above.

breakout: A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
FIFO: FIFO stands for "first in, first out", a way of handling stored items so the oldest one is read out first, like a queue. In electronics a FIFO is usually a small buffer that temporarily holds data, such as sensor samples or serial bytes, so a processor can collect it in batches instead of reading continuously.
PCB: A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
PTH: Plated through-hole means the pin holes are metal-lined so solder connects the pad on both sides of the board. It is useful for connectors and headers that need a strong mechanical and electrical connection.
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.