SparkFun Pressure Sensor - BMP384 (Qwiic)

The SparkFun Qwiic Pressure Sensor features the BMP384 pressure sensor from Bosch Sensortec. The BMP384 excels at high-resolution measurements (up to 24-bit) and uses a gel-filled cavity to provide extra resistance to liquids (water and other chemicals). This makes it a great option for monitoring pressure near water or in humid environments though the sensor is not water-proof without an adequate integration concept.

The BMP384 provides excellent accuracy across a wide measurement range (300hPa to 1250hPa and -40 to +85°C) on a footprint that uses the Qwiic Standard size (1.0in. x 1.0in.). The sensor also features a configurable oversampling setting, a FIFO buffer for storing up to 73 measurements, as well as a low pass filter so users can customize the performance based on the application's requirements. The Qwiic Pressure Sensor communicates over I2C by default, utilizing our handy Qwiic system so no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1”-spaced pins in case you prefer to use a breadboard and also supports using the BMP384 over SPI.

The BMP384 has three operating modes: Sleep Mode, Normal Mode and Forced Mode. While in Sleep Mode the sensor is idle and consumes ~2µA. While in Normal Mode, the sensor automatically cycles between measurement and standby periods and consumes ~700µA at peak current draw during measurements. Forced Mode allows direct control of measurements to wake the sensor from Sleep Mode, take a single-shot measurement, and return the device to Sleep Mode.


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.


  • Supply Voltage Range: 1.65V - 3.6V
  • Current Draw:
    • 700µA - Peak while measuring pressure
    • 3.4 µA @ 1Hz - Pressure and temperature monitoring with Ultra Low Power oversampling settings
    • ~2µA - Sleep Mode
  • Data Transfer Speeds:
    • I2C - 3.4MHz
    • SPI - 10MHz
  • I2C Address: 0x77 (Default), 0x76 (Alternate)
  • Internal Temperature Sensor

SparkFun Pressure Sensor - BMP384 (Qwiic) Product Help and Resources

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Qwiic Pressure Sensor (BMP384) Hookup Guide

June 2, 2022

Get started with the SparkFun Pressure Sensor - BMP384 (Qwiic) following this guide.

Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

2 Programming

Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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