BME280 Breakout - Temperature, Pressure,
Humidity Sensor
PIM472
A really nice environmental sensor that's ideal for indoor
monitoring of temperature, pressure, and humidity, or even
outdoors in a suitable enclosure. It's Raspberry Pi and Arduinocompatible.
We use this sensor on our Enviro+ environmental monitoring board, but it's such a nice sensor
that we thought we'd pop it onto a breakout! The BME280 is a great sensor for monitoring
conditions around your home.
If you're an iOS user, then there's a Homebridge plugin for the BME280 to let you use the
sensor for home automation and monitoring.
It's also compatible with our fancy Breakout Garden, where using breakouts is as easy just
popping it into one of the six slots and starting to grow your project, create, and code.
Features
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Bosch BME280 temperature, pressure, humidity sensor
I2C interface, with address select via ADDR solder bridge (0x76 or 0x77)
3.3V or 5V compatible
Reverse polarity protection
Raspberry Pi-compatible pinout (pins 1, 3, 5, 7, 9)
Compatible with all models of Raspberry Pi, and Arduino
Python library
Datasheet
Kit includes
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BME280 breakout
1x5 male header
1x5 female right angle header
We've designed this breakout board so that you can solder on the piece of right angle female
header and pop it straight onto the bottom left 5 pins on your Raspberry Pi's GPIO header (pins
1, 3, 5, 6, 9). The right angle header also has the advantage of positioning the breakout away
from the Pi's CPU so as to minimise radiated heat.
Software
We've put together a Python library for the BME280 sensor, with handy functions to read all
of the values, and a few nice little examples of how to use it.
Notes
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In our testing, we've found that the sensor requires some burn-in time (at least 20 minutes) and that
readings may take a couple of minutes to stabilise after beginning measurements
The solder pads (marked ADDR) can be bridged to change the I2C address from the default of 0x76 to
0x77, meaning that you can use up to two sensors on the same Raspberry Pi or Arduino
The BME280, BME680, and BMP280 breakouts all share the same I2C addresses, so if you're using
two together then you'll need to change the I2C address on one of them using the solder bridge/pads
Dimensions: 19x19x2.75mm (LxWxH)
https://shop.pimoroni.com/products/bme280-breakout/8-5-19
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