Description The Seeed Studio Grove Barometer Sensor (High-Accuracy) is a compact 3-in-1 Grove module for barometric pressure, altitude, and temperature sensing. The current product description lists the HP206F high-accuracy chip, a 300 to 1200 mbar pressure range, 0.02 mbar pressure resolution during measurement, and direct microcontroller connection over I2C. The Grove interface keeps integration simple with 3.3 V and 5 V development boards. Note Change record: on March 31, 2025, the chip was updated to HP206F. Features Measures barometric pressure, altitude, and temperature in one Grove module. Uses the HP206F high-accuracy barometer chip with internal 24-bit ADC and compensation algorithm. Supports a wide pressure range from 300 to 1200 mbar. Provides 0.02 mbar pressure resolution and fine altitude readings for compact sensing projects. Connects through a digital I2C interface with a Grove 4-pin connector for quick prototyping. Applications High precision mobile altimeters and barometers Industrial pressure and temperature sensing systems Automotive systems Personal electronics altimetry Adventure and sports watches Medical gas control systems Weather station equipment Indoor navigation and map assistance Heating, ventilation, and air conditioning systems Other Content A barometer measures atmospheric pressure, also called air pressure. In embedded projects, this data can support weather station readings, altitude estimation, HVAC monitoring, indoor navigation, and pressure or temperature logging. Specifications Parameter Value Operating voltage 3.3 V to 5.5 V module support; HP206F input range 1.8 V to 3.6 V Current 635 uA min, 1100 uA max Pressure range 300 to 1200 mbar / hPa Pressure resolution 0.02 mbar Altitude resolution 0.2 m in the specification table; down to 0.1 m in high-resolution use Operating temperature -40 deg C to 85 deg C Interface I2C, up to 10 MHz Dimensions 20.4 x 41.8 x 9.7 mm Part List Item Quantity Grove Barometer Sensor (High-Accuracy) module 1 Grove 20 cm cable 1 Resources Grove Barometer High-Accuracy wiki guide Grove Barometer High-Accuracy schematic and PCB files HP206F barometer chip datasheet Grove Barometer HP20x Arduino library Grove Barometer chip change notice FAQ What does this module measure? It measures barometric pressure, altitude, and temperature for weather, navigation, and environmental monitoring projects. Which interface does it use? It uses a digital I2C interface and a Grove 4-pin connector. Can it work with 3.3 V and 5 V boards? Yes. The module specification lists 3.3 V to 5.5 V support, while the HP206F chip itself uses a 1.8 V to 3.6 V input range. What pressure and altitude resolution does it provide? The sensor lists 0.02 mbar pressure resolution and 0.2 m altitude resolution in the specification table, with high-resolution altitude readings down to 0.1 m noted in the product features.
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