Project Hub /IoT & Connected Devices/Environmental & Weather Monitoring/In-Depth: Interfacing MS5611 Barometric Pressure Sensor with Arduino

Beginner

ARDUINO

₹500 – ₹1,500

3 – 6 Hours

Partial Kit

In-Depth: Interfacing MS5611 Barometric Pressure Sensor with Arduino

Learn how to connect and use the MS5611 high-precision barometric pressure sensor and altimeter module with an Arduino using the I2C interface.

Originally published on LastMinuteEngineers

View original tutorial

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

GY-BMP280-3.3 HIGH PRECISION ATMOSPHERIC PRESSURE SENSOR MODULE Rs. 69.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

Selected: Rs. 0.00

We don't carry yet: Arduino (unspecified board)

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How It Works

In this project, an Arduino Uno board communicates with an MS5611 barometric pressure sensor module to measure atmospheric pressure and temperature. The MS5611 is a high-precision sensor that uses the I2C interface to exchange data with the Arduino. Through just a few jumper wires connecting power, ground, and the I2C data and clock lines, the Arduino requests raw digital measurements from the sensor. Because barometric pressure changes with altitude and weather patterns, the MS5611 internal circuitry digitizes these physical changes. The Arduino uses the specialized MS5611 software library to process these raw values using built-in mathematical compensation formulas, translating them into readable pressure and altitude figures.

Why Build This

Create your own portable hiking altimeter to track how high you climb.

Build a digital weather station that monitors atmospheric changes to help predict weather conditions.

Experiment with precise altitude tracking for remote-controlled model aircraft.

Real-World Application

Weather stations, RC aircraft altitude tracking, hiking altimeters, and indoor navigation systems.

Skills You'll Learn

I2C communication

sensor data processing

altimetry calculations

using external Arduino libraries

digital sensor interfacing

Safety Precautions

No specific precautions noted for this build — always follow general electronics safety practices.

Technology Tags

MS5611

BAROMETRIC PRESSURE SENSOR

ALTIMETER

I2C

SPI

TEMPERATURE SENSOR

ARDUINO

C++

Frequently Asked Questions

I2C is a communication protocol that uses two wires—SDA (Data) and SCL (Clock)—along with power and ground, allowing the Arduino and the MS5611 sensor to talk to each other easily.

Do I need to write the math formulas for altitude conversion from scratch?

No, the required MS5611 software library handles the complex calibration and compensation math automatically so you can focus on reading the final values.

Can I power the MS5611 sensor directly from the Arduino Uno?

Yes, you can typically use the 3.3V or 5V output pins from the Arduino Uno to power the sensor module, depending on the specific module's onboard voltage regulator specifications.

Gallery

This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

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