Adafruit MPL3115A2 - I2C Barometric Pressure/Altitude/Temperature Sensor

Key Features Great low-cost sensing solution for precision measurement of barometric pressure and altitude Easy to read altitude with a built in altimeter calculation Temperature sensor with ±1degC typical accuracy (±3degC max) Easy to use with any microcontroller or Arduino with I2C compatibility This pressure sensor from Freescale is a great low-cost sensing solution for precision measurement of barometric pressure and altitude. The MPL3115A2 has a typical 1.5 Pascal resolution, which can resolve altitude at 0.3 meters (compare to the BMP180 which can do 0.17m). It has some upsides compared to the BMP280, such as interrupt outputs for ultra-low power usage, and its also a heck of a lot easier to read altitude with a built in altimeter calculation - no calibration reading and calculating required. As a bonus, there's even a fairly good temperature sensor with ±1degC typical accuracy (±3degC max).This chip likes to be used with 2-3.6V power and logic voltages, so it's placed on a break