Barometric Pressure Sensor BMP-180

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Description

This is a breakout board for the Bosch BMP-180 high-precision, low-power digital barometer. The BMP-180 offers a pressure measuring range of 300 to 1100 hPa with an accuracy down to 0.02 hPa in advanced resolution mode. 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. What makes this sensor great is that it is nearly identical to its former rev, the BMP085! This breadboard-friendly board breaks out every pin to a 5-pin 0.1″ pitch header. VCC can be from 1.8 V to 3.6 V and is I/O lines are 5 V tolerant; we typically run it on a clean, regulated 3.3 V supply. The analog and digital supplies (VDDD and VDDA) are tied to a single header pin, but are separately decoupled. It connects to a micro controller via I²C bus (also known as TWI, or on the Arduino, the “Wire” library).

FEATURES

  • Can measure temperature and altitude.
  • Pressure range: 300 to 1100 hPa
  • Can work on low voltages
  • 3.4 Mhz I2C interface
  • Low power consumption (3 uA)
  • Pressure conversion time: 5 sec
  • Potable size

SPECIFICATION

  • Operating  voltage: 1.3 V – 3.6 V
  • Input voltage: 3.3 V to 5.5 V
  • Peak current : 1000 uA
  • Consumes 0.1 uA standby
  • Maximum voltage at SDA , SCL : VCC + 0.3 V
  • Operating temperature: -40°C to +80°C
  • VCC: Connected to +5 V
  • GND: Connected to ground.
  • SDA: Serial Data pin (I2C interface)
  • SCL: Serial Clock pin (I2C interface)
  • 3.3 V: If +5 V is not present. Can power module by connecting +3.3 V to this pin.
  • Additional information
  • Gross weight: 11 g
  • Manufacturer part number: BMP-180

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