empowering creative people

Sensors > Barometric / Pressure

MPL115A2 - I2C Barometric Pressure/Temperature Sensor

SKU: ADA992

$13.50 AUD, inc GST

More Views

MPL115A2 - I2C Barometric Pressure/Temperature Sensor
13.5 AUD

SKU: ADA992

$13.50 AUD, inc GST
100 units ship in 4 to 6 days (delivered by Mon, 30th of Jan)
OR

This pressure sensor from Freescale is a great low-cost sensing solution for measuring barometric pressure. At 1.5 hPa resolution, it's not as precise as Adafruit's favorite pressure sensor, the BMP085, which has up to 0.03 hPa resolution so they don't suggest it as a precision altimeter. However, it's 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 they are not sure how accurate it is.

This chip looks and sounds a whole lot like the MPL3115A2 but this is the less precise version, best for barometric sensing only

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 Adafruit's 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.

Technical Details

  • PCB weight: 0.61g
  • Vin: 2.4 to 5.5 VDC
  • Logic: 3 to 5V compliant
  • Pressure sensing range: 500-1150 hPa (up to 10Km altitude)
  • 1.5 hPa / 50 m altitude resolution
  • This board/chip uses I2C 7-bit address 0x60

MPL115A2 Datasheet

Fritzing object in Adafruit Fritzing library

EagleCAD PCB files on GitHub

Using the sensor is easy. For example, if you're using an Arduino, simply connect the VIN 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 Adafruit's 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.

This product is listed in:

Documentation and Resources:

Product Comments

Documentation and Resources:

We deliver Australia-wide with these options:

  • $3 for Small Items (4-6 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.32 for Express Post (1-2 days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address:

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Please checkout our customer service page if you have other frequently asked questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.