Fermion: BMP581 High-Precision Barometric Pressure Sensor (Bosch Flagship | ±0.3hPa | 3.3V)
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).
Pinout
One grouped source record is expanded into separate logical pads where unambiguous; physical placement is not implied.
- 3V3Official table 4 row 1
Power Positive (Supply Input: 3.3V)
Type · Power - GNDOfficial table 4 row 2
Power Negative (Ground)
Type · Ground - SCLSCKOfficial table 4 row 3
Multiplexed Pin: Clock Line (SCL) in I2C mode, Clock Line (SCK) in SPI mode
Type · I2C, SPI - SDASDIOfficial table 4 row 4
Multiplexed Pin: Data Line (SDA) in I2C mode, Data Input Line (SDI) in SPI mode
Type · I2C - CSBOfficial table 4 row 5
Active exclusively in SPI mode, functioning as Chip Select Pin
Type · SPI - SDOOfficial table 4 row 6
Active exclusively in SPI mode, serving as Data Output Line
Type · Power - INTOfficial table 4 row 7
Interrupt Output Pin (General-Purpose)
Type · GPIO
| Pin | Position | Type | Function |
|---|---|---|---|
| 3V3 | Official table 4 row 1 | Power | Power Positive (Supply Input: 3.3V) |
| GND | Official table 4 row 2 | Ground | Power Negative (Ground) |
| SCLSCK | Official table 4 row 3 | I2C, SPI | Multiplexed Pin: Clock Line (SCL) in I2C mode, Clock Line (SCK) in SPI mode |
| SDASDI | Official table 4 row 4 | I2C | Multiplexed Pin: Data Line (SDA) in I2C mode, Data Input Line (SDI) in SPI mode |
| CSB | Official table 4 row 5 | SPI | Active exclusively in SPI mode, functioning as Chip Select Pin |
| SDO | Official table 4 row 6 | Power | Active exclusively in SPI mode, serving as Data Output Line |
| INT | Official table 4 row 7 | GPIO | Interrupt Output Pin (General-Purpose) |
One grouped source record is expanded into separate logical pads where unambiguous; physical placement is not implied.
Pin details
7 connections- 3V3Official table 4 row 1
Power Positive (Supply Input: 3.3V)
Power - GNDOfficial table 4 row 2
Power Negative (Ground)
Ground - SCLSCKOfficial table 4 row 3
Multiplexed Pin: Clock Line (SCL) in I2C mode, Clock Line (SCK) in SPI mode
I2C, SPI - SDASDIOfficial table 4 row 4
Multiplexed Pin: Data Line (SDA) in I2C mode, Data Input Line (SDI) in SPI mode
I2C - CSBOfficial table 4 row 5
Active exclusively in SPI mode, functioning as Chip Select Pin
SPI - SDOOfficial table 4 row 6
Active exclusively in SPI mode, serving as Data Output Line
Power - INTOfficial table 4 row 7
Interrupt Output Pin (General-Purpose)
GPIO
Start wiring
I2C · SPI · Single data line · 3.3 – 5 V · Breakout
Confirm the data interface matches your host board.
Module pins: 3V3, SDO, GND, SCL/SCK, SDA/SDI, CSB. Schematik maps them to your board in the app.
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