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MPL115A2 - I2C Barometric Pressure/Temperature Sensor

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Adafruit MPL115A2 - I2C Barometric Pressure/Temperature Sensor 1Pcs

Adafruit MPL115A2 - I2C Barometric Pressure/Temperature Sensor

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  • Adafruit MPL115A2 - I2C Barometric Pressure/Temperature Sensor
  • Adafruit MPL115A2 - I2C Barometric Pressure/Temperature Sensor

Details


 This pressure sensor from Freescale is a great low-cost sensing solution for measuring barometric pressure. Great for basic barometric pressure sensing. The sensor is soldered onto a PCB with 10K pull-up resistors on the I2C pins. 

This chip is good for use with power and logic voltages ranging from 2.4V to 5.5V so you can use it with your 3V or 5V microcontroller. There's a basic temperature sensor inside but there's no specifications in the datasheet so we're not sure how accurate it is. 

Using the sensor is easy. For example, if you're using an Arduino, simply connect the VDD pin to the 5V voltage pin, GND to ground, SCL to I2C Clock (Analog 5 on an UNO) and SDA to I2C Data (Analog 4 on an UNO). Then download  MPL115A2 Arduino library and example code for temperature, pressure and basic altitude calculation. Install the library, and load the example sketch. Immediately you'll have the temperature, pressure and altitude data printed in the serial console.


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