# Adafruit BMP580, BMP581, and BMP585 - Temperature and Pressure Sensor
## Overview
Bosch has been a leader in barometric pressure sensors, from the [BMP085](https://www.adafruit.com/product/391). [BMP180](https://www.adafruit.com/product/1603), [BMP280](https://www.adafruit.com/product/2651), [BMP388](https://www.adafruit.com/product/3966), [BMP390](https://www.adafruit.com/product/4816)... now we've got the next generation, the **Adafruit BMP580, BMP581, and BMP585 Precision Barometric Pressure and Altimeter Breakouts**. They can even be used in either I2C and SPI configurations.
The BMP58x is the next-generation of sensors from Bosch and is the upgrade to the BMP2xx and BMP3xx - with a low-altitude noise as low as 1cm (0.08Pa) and the same fast conversion time. And like the previous BMP280, you can use I2C or SPI. For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.
- The **BMP580** and **BMP585** have a relative accuracy of **±6 Pascals** at room temperature, which translates to about ±50 centimeters of altitude. The typical absolute accuracy is ±60 Pa or about 5 meters. Check the datasheet for how temperature and altitude can affect the absolute/relative accuracy.
- The **BMP581** has a relative accuracy of **±0.4 Pascals** at 900-1100 hPa and 25°C, which translates to about ±3.3 centimeters of altitude. The typical absolute accuracy is ±30Pa or about 2.5 meters. Check the datasheet for how temperature and altitude can affect the absolute/relative accuracy.
See the datasheets linked in the [Downloads section](https://learn.adafruit.com/adafruit-bmp580-bmp581-and-bmp585-temperature-and-pressure-sensor/downloads) for complete specifications of each sensor.
Compare to the **BMP280**'s ±12 Pascal/±1 meter and **BMP388**'s ±8 Pascal/±0.5 meter.
**The BMP585 is software/firmware compatible with the BMP580/BMP581 but comes with a port that can have a tube attached! Note it has the approximately accurate/precision as BMP580, it's not as accurate/precise as the BMP581.** It's also more expensive, so pick this one when you need a ported sensor!
**The BMP581 is software/firmware compatible with the BMP580 but has better accurate/precision measurements.** It's also more expensive! So pick this when accuracy is more important than cost.
The datasheet sort of implies they intend this sensor to be used for drones and quadcopters, to keep altitude stable, but you could also use this for wearables or any project that wants to track height-above-sea-level. Note that for absolute height you'll still need to enter in the barometric pressure at sea level if the weather changes, but that's true of every altimeter sensor that uses pressure. You can also measure temperature with ±0.5°C accuracy.
Nice sensor, right? So we made it easy for you to get right into your next project. The surface-mount sensor is soldered onto a custom made PCB in the [**STEMMA QT** form factor](https://www.adafruit.com/?q=stemma%20qt%20sensor), making them easy to interface with. The [STEMMA QT connectors](https://learn.adafruit.com/introducing-adafruit-stemma-qt/what-is-stemma-qt) on either side are compatible with the [SparkFun Qwiic](https://www.sparkfun.com/qwiic) I2C connectors. This allows you to make solderless connections between your development board and the BMP58x or to chain it with a wide range of other sensors and accessories using a [**compatible cable**](https://www.adafruit.com/?q=stemma%20qt%20cable). [QT Cable is not included, but we have a variety in the shop](https://www.adafruit.com/?q=stemma+qt+cable&sort=BestMatch).
- [Next Page](https://learn.adafruit.com/adafruit-bmp580-bmp581-and-bmp585-temperature-and-pressure-sensor/pinouts.md)
## Primary Products
### Adafruit BMP581 I2C or SPI Temperature and Pressure Sensor
[Adafruit BMP581 I2C or SPI Temperature and Pressure Sensor](https://www.adafruit.com/product/6407)
Bosch has been a leader in barometric pressure sensors, from the [BMP085](https://www.adafruit.com/product/391). [BMP180](https://www.adafruit.com/product/1603), [BMP280](https://www.adafruit.com/product/2651),
Out of Stock
[Buy Now](https://www.adafruit.com/product/6407)
[Related Guides to the Product](https://learn.adafruit.com/products/6407/guides)
### Adafruit BMP580 I2C or SPI Temperature and Pressure Sensor
[Adafruit BMP580 I2C or SPI Temperature and Pressure Sensor](https://www.adafruit.com/product/6411)
Bosch has been a leader in barometric pressure sensors, from the [BMP085](https://www.adafruit.com/product/391). [BMP180](https://www.adafruit.com/product/1603), [BMP280](https://www.adafruit.com/product/2651),
In Stock
[Buy Now](https://www.adafruit.com/product/6411)
[Related Guides to the Product](https://learn.adafruit.com/products/6411/guides)
### Adafruit BMP585 Ported I2C / SPI Temperature and Pressure Sensor
[Adafruit BMP585 Ported I2C / SPI Temperature and Pressure Sensor](https://www.adafruit.com/product/6413)
Bosch has been a leader in barometric pressure sensors, from the [BMP085](https://www.adafruit.com/product/391). [BMP180](https://www.adafruit.com/product/1603), [BMP280](https://www.adafruit.com/product/2651),
In Stock
[Buy Now](https://www.adafruit.com/product/6413)
[Related Guides to the Product](https://learn.adafruit.com/products/6413/guides)
## Featured Products
### STEMMA QT / Qwiic JST SH 4-Pin Cable - 50mm Long
[STEMMA QT / Qwiic JST SH 4-Pin Cable - 50mm Long](https://www.adafruit.com/product/4399)
This 4-wire cable is 50mm / 1.9" long and fitted with JST SH female 4-pin connectors on both ends. Compared with the chunkier JST PH these are 1mm pitch instead of 2mm, but still have a nice latching feel, while being easy to insert and remove.
Out of Stock
[Buy Now](https://www.adafruit.com/product/4399)
[Related Guides to the Product](https://learn.adafruit.com/products/4399/guides)
### STEMMA QT / Qwiic JST SH 4-pin Cable - 100mm Long
[STEMMA QT / Qwiic JST SH 4-pin Cable - 100mm Long](https://www.adafruit.com/product/4210)
This 4-wire cable is a little over 100mm / 4" long and fitted with JST-SH female 4-pin connectors on both ends. Compared with the chunkier JST-PH these are 1mm pitch instead of 2mm, but still have a nice latching feel, while being easy to insert and remove.
Out of Stock
[Buy Now](https://www.adafruit.com/product/4210)
[Related Guides to the Product](https://learn.adafruit.com/products/4210/guides)
### STEMMA QT / Qwiic JST SH 4-pin to Premium Male Headers Cable
[STEMMA QT / Qwiic JST SH 4-pin to Premium Male Headers Cable](https://www.adafruit.com/product/4209)
This 4-wire cable is a little over 150mm / 6" long and fitted with JST-SH female 4-pin connectors on one end and premium Dupont male headers on the other. Compared with the chunkier JST-PH these are 1mm pitch instead of 2mm, but still have a nice latching feel, while being easy to insert...
Out of Stock
[Buy Now](https://www.adafruit.com/product/4209)
[Related Guides to the Product](https://learn.adafruit.com/products/4209/guides)
### STEMMA QT / Qwiic JST SH 4-pin Cable with Premium Female Sockets
[STEMMA QT / Qwiic JST SH 4-pin Cable with Premium Female Sockets](https://www.adafruit.com/product/4397)
This 4-wire cable is a little over 150mm / 6" long and fitted with JST-SH female 4-pin connectors on one end and premium female headers on the other. Compared with the chunkier JST-PH these are 1mm pitch instead of 2mm, but still have a nice latching feel, while being easy to insert and...
Out of Stock
[Buy Now](https://www.adafruit.com/product/4397)
[Related Guides to the Product](https://learn.adafruit.com/products/4397/guides)
### JST SH 4-pin Cable with Alligator Clips - STEMMA QT / Qwiic
[JST SH 4-pin Cable with Alligator Clips - STEMMA QT / Qwiic](https://www.adafruit.com/product/4398)
This cable will make it super easy to use our plug-and-play STEMMA QT boards with boards like Circuit Playground. On one end you get a Qwiic / STEMMA QT connector (technically known as a JST SH 4-pin plug) into 4 individual wires with grippy alligator clips. We're carrying these to...
Out of Stock
[Buy Now](https://www.adafruit.com/product/4398)
[Related Guides to the Product](https://learn.adafruit.com/products/4398/guides)
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