Qwiic Pressure Sensor (BMP384) Hookup Guide

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Contributors: El Duderino
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Introduction

The SparkFun Pressure Sensor - BMP384 Qwiic and Micro Pressure Sensor - BMP384 (Qwiic) feature the BMP384 digital pressure sensor from Bosch©. The BMP384 excels at high-resolution measurements (up to 21-bit) and uses a gel-filled cavity to provide extra resistance to liquids (water and other chemicals) making it a great option for monitoring pressure in a wide variety of environments though the sensor is not water-proof.

SparkFun Pressure Sensor - BMP384 (Qwiic)

SparkFun Pressure Sensor - BMP384 (Qwiic)

SEN-19662
$15.95
SparkFun Micro Pressure Sensor - BMP384 (Qwiic)

SparkFun Micro Pressure Sensor - BMP384 (Qwiic)

SEN-19833
$16.95

This guide will take you through the hardware present on these Qwiic breakouts, how to connect them to a Qwiic circuit and how to use the sensor with the SparkFun BMP384 Arduino Library.

Required Materials

To follow along with this guide you will need a microcontroller to communicate with the BMP384. Below are a few options that come Qwiic-enabled out of the box:

SparkFun Thing Plus - ESP32 WROOM (Micro-B)

SparkFun Thing Plus - ESP32 WROOM (Micro-B)

WRL-15663
$22.50
14
SparkFun RedBoard Plus

SparkFun RedBoard Plus

DEV-18158
$21.50 $15.05
6
SparkFun Thing Plus - Artemis

SparkFun Thing Plus - Artemis

WRL-15574
$22.50
3
SparkFun RedBoard Artemis

SparkFun RedBoard Artemis

DEV-15444
$21.50
10

If your chosen microcontroller is not already Qwiic-enabled, you can add that functionality with one or more of the following items:

SparkFun Qwiic Cable Kit

SparkFun Qwiic Cable Kit

KIT-15081
$8.95
22
SparkFun Qwiic Adapter

SparkFun Qwiic Adapter

DEV-14495
$1.60
5
SparkFun Qwiic Shield for Arduino

SparkFun Qwiic Shield for Arduino

DEV-14352
$7.50
9
SparkFun Qwiic Shield for Thing Plus

SparkFun Qwiic Shield for Thing Plus

DEV-16790
$4.95

You will also need at least one Qwiic cable to connect your sensor to your microcontroller.

Qwiic Cable - 100mm

Qwiic Cable - 100mm

PRT-14427
$1.50
Qwiic Cable - 50mm

Qwiic Cable - 50mm

PRT-14426
$0.95

Qwiic Cable - 200mm

PRT-14428
Retired

Qwiic Cable - 500mm

PRT-14429
1 Retired

Recommended Reading

If you aren't familiar with the Qwiic system, we recommend reading here for an overview.

Qwiic Connect System

We would also recommend taking a look at the following tutorials if you aren't familiar with them. If you are using one of the Qwiic Shields listed above, you may want to read through their respective Hookup Guides as well before you get started with the SparkFun Pressure Sensor - BMP384 (Qwiic).

I2C

An introduction to I2C, one of the main embedded communications protocols in use today.

Serial Terminal Basics

This tutorial will show you how to communicate with your serial devices using a variety of terminal emulator applications.

Qwiic Shield for Arduino & Photon Hookup Guide

Get started with our Qwiic ecosystem with the Qwiic shield for Arduino or Photon.

SparkFun Qwiic Shield for Arduino Nano Hookup Guide

Hookup Guide for the SparkFun Qwiic Shield for Arduino Nano.