Key features
- Bosch Sensortec BMP581 absolute pressure sensor with on-chip linearization and temperature compensation: outputs true pressure and temperature values
- Pressure resolution down to 1/64 Pa and absolute accuracy of ±0.5 hPa
- Configurable oversampling, FIFO buffer for 32 pressure samples and programmable low-pass filter
- 6 bytes of user-programmable non-volatile memory
- Five operating modes: Normal, Forced, Continuous, Standby and Deep Standby
- Two Qwiic connectors for solderless I2C; signals also on 0.1" (2.54 mm) pins, configurable for SPI
- Libraries also available for MicroPython
Technical specifications
- Chip: Bosch Sensortec BMP581
- Pressure range: 30–125 kPa
- Resolution: 1/64 Pa
- Absolute accuracy: ±0.5 hPa
- Temperature range: -40 to 85 °C
- Output data rate: 0.125–240 Hz (Normal mode); max. 622 Hz (Continuous mode, 1× oversampling)
- Supply voltage: 1.71–3.6 V
- Current draw: 260 µA max. during measurements; 1.3 µA at 1 Hz in low-power mode; 0.55 µA minimum in Deep Standby
- Interfaces: I2C up to 1 MHz, SPI up to 12 MHz
- I2C address: 0x47 (default), 0x46 (alternate)
- Connectors: 2 × Qwiic, 0.1" pins
- Dimensions: 25.4 × 25.4 mm
Typical uses
Altimeters and variometers, weather stations, floor detection in buildings, drones, wearables and low-power data loggers.
Package contents
- 1 × BMP581 Qwiic pressure sensor board
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