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MyOctopus sensor boards are easy connect (via I2C BUS components which easily connect to a micro-controller, computer-on-module or development board (Arduino, Edison, Beaglebone, Pi etc) to quickly give your project senses. This sensor board can measure pressure 300 … 1100 hPa.
This is a custom board created for our MyOctopus Smart Home platform.
We created it to allow our AI / ML to monitor the air pressure in the environment and to easily access and store data readouts from the sensors.
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1 - soldered, 0 - open
The BMP280 is an absolute barometric pressure sensor especially designed for mobile applications. The sensor module is housed in an extremely compact 8-pin metal-lid LGA package with a footprint of only 2.0 × 2.5 mm2 and 0.95 mm package height. Its small dimensions and its low power consumption of 2.7 μA @1Hz allow the implementation in battery driven devices such as mobile phones, GPS modules or watches.
The emerging applications of in-door navigation, health care as well as GPS refinement require a high relative accuracy and a low TCO at the same time. BMP280 is perfectly suitable for applications like floor detection since both sensors feature excellent relative accuracy is ±0.12 hPa, which is equivalent to ±1 m difference in altitude. The very low offset temperature coefficient (TCO) of 1.5 Pa/K translates to a temperature drift of only 12.6 cm/K.
The BMP280 measurement period consists of a temperature and pressure measurement with selectable oversampling. After the measurement period, the data are passed through an optional IIR filter, which removes short-term fluctuations in pressure (e.g. caused by slamming a door). The flow is depicted in the diagram below.
BMP280 can be operated in three power modes sleep mode normal mode * forced mode
Pressure and temperature measurement oversampling can be selected independently from 0 to 16 times oversampling: Temperature measurement Ultra low power Low power Standard resolution High resolution Ultra high resolution
In order to simplify the device usage and reduce the high number of possible combinations of
power modes, oversampling rates and filter settings, Bosch Sensortec provides a proven set of
recommendations for common use-cases in smart-phones, mobile weather stations or flying
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MyOctopus Open-Source Smart-Home platform
Here on Tindie, we sell the parts we create as we build MyOctopus
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All parts are Open Source Hardware and always will be!
The Freedom to Innovate Your Own Home ~ The Power to Create the Smart-Home of your Dreams
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