{"product_id":"gravity-bmp581-barometric-pressure-sensor-0-3hpa-high-accuracy-i2c-uart-df-sen0665","title":"Gravity: BMP581 Barometric Pressure Sensor (0.3hPa High Accuracy, I2C \/ UART)","description":"\u003cp\u003eThe Gravity: BMP581 High-Precision Barometric Pressure \u0026amp; Temperature Sensor is a professional-grade digital altimeter designed for applications requiring extreme vertical stability and environmental accuracy. Powered by the next-generation Bosch BMP581, this atmospheric pressure monitor delivers best-in-class absolute accuracy of \u003cb\u003e±0.3 hPa\u003c\/b\u003e and \u003cb\u003eultra-low noise (0.1 Pa)\u003c\/b\u003e. Unlike standard modules, it features native 3.3V\/5V compatibility and flexible \u003cb\u003eI2C\/UART interfaces\u003c\/b\u003e, ensuring seamless plug-and-play integration. This precision sensor is the optimal solution for drone altitude hold, indoor navigation, and meteorological data logging where data reliability is critical.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eUnparalleled Measurement Accuracy\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eAt the heart of this barometric monitor lies a high-performance 24-bit sensing element capable of detecting minute pressure changes. The device achieves a relative altitude accuracy of ±0.5 meters, allowing for precise tracking of vertical movement. Unlike standard sensors, this atmospheric pressure module minimizes temperature drift (±0.5 Pa\/K), ensuring that data remains consistent even in fluctuating thermal environments. This level of precision is critical for converting pressure readings into reliable altitude data for navigation and positioning tasks.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eIntelligent Data Processing and Stability\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eTo combat environmental noise and data jitter, the BMP581 breakout board incorporates advanced digital linearity compensation algorithms. It features a built-in hardware FIFO (First-In-First-Out) buffer and a configurable IIR (Infinite Impulse Response) filter. These onboard processing capabilities allow the environmental sensor to smooth out signal disturbances purely through hardware, significantly reducing the computational load on the main controller. This results in stable, noise-free output suitable for dynamic applications like stabilizing quadcopters or tracking hiking elevation.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eOptimized Power Efficiency\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eDesigned with portable and battery-operated projects in mind, the sensing unit operates with an ultra-low current consumption of approximately 700μA. The integration of non-volatile memory (NVM) allows for the storage of user configurations, ensuring the device retains settings without constant re-initialization. This efficiency extends the operational lifespan of remote IoT nodes and wearable devices that rely on continuous environmental monitoring.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSeamless Integration and Compatibility\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eThe module is engineered for universal compatibility within the open-source hardware ecosystem. Supporting both I2C and UART protocols, the pressure sensor board offers versatile connectivity options for various microcontrollers. The inclusion of voltage translation logic ensures direct compatibility with both 3.3V and 5V systems, eliminating the need for external level shifters. Coupled with the standard Gravity interface, the sensor module enables plug-and-play prototyping, reducing the time required for wiring and system validation.\u003c\/p\u003e\u003ch2\u003eApplications:\u003c\/h2\u003e\u003cli\u003eDrone Flight Controllers: Altitude hold \u0026amp; vertical stability.\u003c\/li\u003e\u003cli\u003eNavigation: GPS enhancement (dead-reckoning) \u0026amp; floor-level detection.\u003c\/li\u003e\u003cli\u003eWeather Monitoring: Personal weather stations \u0026amp; environmental logging.\u003c\/li\u003e\u003cli\u003eSports Tech: Hiking altimeters \u0026amp; fitness trackers.\u003c\/li\u003e\u003ch2\u003eSpecification:\u003c\/h2\u003e\u003cp\u003eBasic Parameters\u003c\/p\u003e\u003cli\u003eOperating Voltage: DC 3.3~5V\u003c\/li\u003e\u003cli\u003eOperating Current: 700μA\u003c\/li\u003e\u003cli\u003eCommunication Interface: I2C \/ UART\u003c\/li\u003e\u003cli\u003eInterface Form: PH2.0-4P (Gravity Pinout) \/ 2.54mm Pin Header Socket\u003c\/li\u003e\u003cli\u003eI2C Address: 0x47 (Default) \/ 0x46\u003c\/li\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eBMP581 Parameters\u003c\/p\u003e\u003cli\u003ePressure Measurement Range: 30 ~ 125 kPa\u003c\/li\u003e\u003cli\u003eTemperature Measurement Range: 0 ~ 65 °C \u003c\/li\u003e\u003cli\u003eAbsolute Pressure Accuracy: ±0.3 hPa (Typ.)\u003c\/li\u003e\u003cli\u003eRelative Pressure Accuracy: ±0.06 hPa \/ 10 kPa (Typ.)\u003c\/li\u003e\u003cli\u003eRelative Altitude Accuracy: ±0.5 m \/ 10 kPa\u003c\/li\u003e\u003cli\u003eTemperature Drift Coefficient: ±0.5 Pa \/ K\u003c\/li\u003e\u003cli\u003ePressure Data Resolution: 1 \/ 64\u003c\/li\u003e\u003cli\u003eUltra-Low Noise: 0.1 Pa (RMS, without low-pass filter enabled)\u003c\/li\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003ePhysical Dimensions\u003c\/p\u003e\u003cli\u003ePCB Dimensions: 32 × 27 × 7.18 mm\u003c\/li\u003e\u003cli\u003eMounting Hole Spacing: 25×20 mm\u003c\/li\u003e\u003cli\u003eMounting Hole Diameter: 3.0 mm\u003c\/li\u003e\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eDocuments:\u003c\/h2\u003e\u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/SKU_SEN0665_Gravity:_BMP581_Barometric_Pressure_Sensor\" target=\"_blank\"\u003eProduct wiki\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/dfimg.dfrobot.com\/62d52567aa9508d63a4247a1\/wikien\/b5a61923cf6215001f512d89d67ad5bb.pdf\" target=\"_blank\"\u003eSchematic Diagram\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/dfimg.dfrobot.com\/62d52567aa9508d63a4247a1\/wikien\/516780a0a778a243801c24b332d9f780.pdf\" target=\"_blank\"\u003eDimensions \u0026amp; Component Layout Diagram\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/dfimg.dfrobot.com\/62d52567aa9508d63a4247a1\/wikien\/1fe94f44552ee429121c5bb320f2fad8.rar\" target=\"_blank\"\u003e2D_CAD\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/dfimg.dfrobot.com\/62d52567aa9508d63a4247a1\/wikien\/ea4f481acb22f7ae1b09223ad7801a71.rar\" target=\"_blank\"\u003e3D_STP\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"https:\/\/dfimg.dfrobot.com\/62d52567aa9508d63a4247a1\/wikien\/27ed545ee33afd379d8e03e7acc4fce4.pdf\" target=\"_blank\"\u003eBMP581 Chip Datasheet\u003c\/a\u003e\u003c\/li\u003e\u003ch2\u003eProduct Includes:\u003c\/h2\u003e\u003cli\u003eGravity: BMP581 High-Precision Barometric Pressure \u0026amp; Temperature Sensor ×1\u003c\/li\u003e\u003cli\u003ePH2.0-4P Sensor Connection Cable ×1\u003c\/li\u003e\u003cli\u003e10pin-2.54 Black Single Row Pin Header ×1\u003c\/li\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":42343283949650,"sku":"DF-SEN0665","price":19.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/0383\/files\/SEN0665_Main_01.jpg?v=1774161922","url":"https:\/\/www.pakronics.co.nz\/products\/gravity-bmp581-barometric-pressure-sensor-0-3hpa-high-accuracy-i2c-uart-df-sen0665","provider":"Pakronics®","version":"1.0","type":"link"}