{"id":11284,"sku":"RTL-11284","name":"Barometric Pressure Sensor - BMP085 Breakout Retail","description":"
Replacement:<\/strong> None. We are no longer carrying this barometric pressure sensor retail kit in our catalog. This page is for reference only.<\/p>\n\n This is a simple breakout board for the BMP085 high-precision, low-power digital barometer in retail packaging. The BMP085 offers a measuring range of 300 to 1100 hPa with an accuracy down to 0.03 hPa in ultra-high resolution mode (that's 0.25m of altitude at sea level!) It's based on piezo-resistive technology for high accuracy, ruggedness and long term stability. These come factory-calibrated, with the calibration coefficients already stored in ROM. Writing your own code for it requires some math, but there are plenty of examples and libraries available (see below).<\/p>\n\n This breadboard-friendly board breaks out every pin to a 6-pin 0.1\" pitch header. VCC can be from 1.8V to 3.6V; we typically run it on a clean, regulated 3.3V supply. The analog and digital supplies (VDDD and VDDA) are tied to a single header pin, but are separately decoupled. It connects to a microcontroller via I\u00b2C bus (also known as TWI, or on the Arduino, the \"Wire\" library).<\/p>\n\n We've made some minor hardware changes this time around to address some suggestions from the comment section including the addition of a solder jumper to disable the I2C pull-ups.<\/p>\n\n Replaces:<\/strong>RTL-09889<\/a><\/p>\n\n Features:<\/strong><\/p>\n\n Documents:<\/strong><\/p>\n\n\n
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