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Fermion: BMP581 High-Precision Barometric Pressure Sensor (Bosch Flagship | ±0.3hPa | 3.3V)

$5.90
SKU: SEN0667
Volume Discount
  • $5.80 3+ items
  • $5.70 5+ items
  • $5.50 10+ items
The Fermion: BMP581 is a compact digital barometric pressure and temperature sensor module based on the Bosch BMP581 chip. It delivers an absolute accuracy of ±0.3 hPa and features ultra-low noise (< 0.1 Pa) and power consumption (2μA sleep current). The module supports I2C, SPI, and I3C communication interfaces and operates at 3.3V DC.
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Introduction

Fermion BMP581 High‑Precision Barometric Pressure & Temperature Sensor integrates Bosch Sensortec’s latest-generation pressure sensing technology to deliver exceptional environmental measurement accuracy. Featuring an absolute pressure accuracy of ±0.3hPa and extremely low noise performance, this compact atmospheric sensing module can detect subtle altitude changes such as floor-level differences or liquid level fluctuations. The precision barometric measurement board supports I2C, I3C, and SPI communication, enabling seamless integration with controllers such as Arduino, ESP32, or Raspberry Pi. Reliable altitude and pressure data make this environmental sensing module suitable for robotics navigation, UAV stabilization, wearable devices, and smart weather monitoring systems.

Note: This module operates at 3.3V logic. A logic level converter is required when using with 5V microcontrollers (e.g., Arduino Uno).


Laboratory‑Grade Precision and Data Stability

At the heart of this atmospheric monitoring module lies advanced signal conditioning combined with Bosch digital compensation algorithms. Integrated linearity correction, a configurable IIR (Infinite Impulse Response) filter, and a hardware FIFO buffer cooperate to suppress measurement jitter caused by rapid environmental disturbances. Such architecture maintains stable pressure readings during vibration or airflow fluctuations. Accurate altitude estimation and smooth pressure curves benefit applications such as drone vertical velocity monitoring, HVAC system diagnostics, and indoor floor-level detection where dependable atmospheric sensing accuracy remains essential.

Accuracy ±0.3hPa of Fermion: BMP581 High-Precision Barometric Pressure Sensor

Figure: Accuracy ±0.3hPa of Fermion: BMP581 High-Precision Barometric Pressure Sensor


Ultra‑Low Power Architecture for Long‑Term IoT Deployment

Energy efficiency remains critical for distributed sensing nodes and battery-powered electronics. This compact barometric pressure sensing board features a sleep current as low as 2μA, allowing extended operation in remote monitoring equipment, wearable trackers, and portable instrumentation. Six bytes of integrated non‑volatile memory store configuration parameters directly on the sensor, eliminating repeated setup sequences during power cycles. Reduced initialization overhead shortens wake time and conserves energy, enabling long‑duration environmental logging using small batteries or energy‑harvesting power sources.

The Stable Flight of Fermion: BMP581 High-Precision Barometric Pressure Sensor

Figure: The Stable Flight of Fermion: BMP581 High-Precision Barometric Pressure Sensor


Flexible Multi‑Protocol Interface for Embedded Platforms

Broad connectivity support ensures straightforward integration across diverse embedded ecosystems. The precision altitude sensing module provides I2C, SPI, and emerging I3C communication interfaces, allowing compatibility with both lightweight microcontrollers and advanced IoT gateways. A standard 2.54mm pin header layout simplifies breadboard prototyping and PCB integration during hardware development. Such flexibility enables rapid deployment in robotics controllers, wearable electronics, and environmental data loggers where accurate atmospheric pressure measurement must be easily incorporated into compact embedded systems.


High‑resolution pressure sensing combined with ultra‑low power consumption makes this Bosch‑based barometric sensor board highly suitable for intelligent navigation systems, UAV altitude stabilization, indoor positioning solutions, wearable fitness electronics, and compact weather monitoring equipment. Reliable altitude detection and stable atmospheric data provide strong support for modern robotics research, environmental monitoring infrastructure, and portable IoT instrumentation requiring accurate pressure and temperature measurements.

Selection Guide

Pressure/Altitude Sensor Selection Comparison Table

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SKU
SEN0664
SEN0666
SEN0665
SEN0667
SEN0423
SEN0251
Add to Cart
Chip/Module Type
Bosch BMP585
Bosch BMP585
Bosch BMP581
Bosch BMP581
Bosch BMP390L
Bosch BMP388
Size/Volume
Compact module
Ultra-small PCB
Compact module
Ultra-small PCB
Ultra-small PCB
Compact module
Power Consumption
∼700μA
200μA / 2μA sleep
∼700μA
200μA / 2μA sleep
54μA sleep / max ∼650μA
~0.5mA
Interface Protocol
I2C / UART, plug & play
I2C / SPI / I3C
I2C / UART, plug & play
I2C / SPI / I3C
I2C / SPI
I2C / SPI
Accuracy / Key Features
±0.3hPa / Industrial protection
±0.3hPa + Waterproof & Chemical resistant
±0.3hPa / Ultra-low noise
±0.3hPa / Ultra-low noise
±0.50hPa / ±3Pa (∼±0.25m) / High stability
±8Pa (∼±0.5m) / Temp ±0.5∘C
Ideal Scenarios
Industrial / Agricultural environmental detection
Outdoor weather stations / Environmental monitoring device integration
Drone altitude control / High-precision pressure data logging
Battery-powered IoT / Micro-drone project integration
Drone altitude control / High-precision pressure & altitude detection
Basic pressure measurement / Indoor positioning / GPS enhancement

Features

  • Bosch BMP581 high‑performance barometric pressure sensor
  • High absolute pressure accuracy: ±0.3 hPa (typ.)
  • Ultra‑low noise measurement < 0.1 Pa RMS
  • Supports I2C, I3C, and SPI communication interfaces
  • Integrated configurable IIR filter and hardware FIFO buffer
  • Ultra‑low sleep current down to 2μA for low‑power systems
  • Built‑in non‑volatile memory for configuration storage
  • Standard 2.54mm pin header for easy prototyping
  • Suitable for altitude measurement, indoor positioning, and UAV stabilization
  • Applications

  • Drone stability hovering and vertical velocity control
  • GPS navigation enhancement (dead-reckoning, slope detection)
  • Indoor navigation and floor localization
  • Fitness tracking (calorie expenditure, elevation gain)
  • Precision weather stations and hydrological monitoring
  • Specification

    Basic Parameters

  • Operating Voltage: DC 3.3V
  • Operating Current: 200μA
  • Sleep Current: 2μA
  • Communication Interface: I2C / I3C /SPI
  • Interface Form: 2.54mm Pin Header Socket
  • I2C Address: 0x47 (Default) / 0x46
  • BMP581 Parameters

  • Pressure Measurement Range: 30 ~ 125 kPa
  • Temperature Measurement Range: 0 ~ 65 °C
  • Absolute Pressure Accuracy: ±0.3 hPa (Typ.)
  • Relative Pressure Accuracy: ±0.06 hPa / 10 kPa (Typ.)
  • Relative Altitude Accuracy: ±0.5 m / 10 kPa
  • Temperature Drift Coefficient: ±0.5 Pa / K
  • Pressure Data Resolution: 1 / 64
  • Ultra-Low Noise: < 0.1 Pa (RMS, without low-pass filter enabled)
  • Physical Dimensions

  • PCB Dimensions: 19×16×2.49 mm
  • Mounting Hole Spacing: 14 mm
  • Mounting Hole Diameter: 2.0 mm
  • Shipping List

  • Fermion: BMP581 High-Precision Barometric Pressure & Temperature Sensor ×1
  • 10pin-2.54 Black Single Row Pin Header ×1
  • Documents

    Certifications

    Resource

    AllProjectsBlogTutorialCourseMedia
    What is I3C: The Next Generation of I2C

    Blog What is I3C: The Next Generation of I2C

    DFRobot
    Jan 20, 2025
    Fermion: BMP581 High-Precision Barometric Pressure Sensor (Bosch Flagship | ±0.3hPa | 3.3V)
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