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MPL115A2 - I2C Barometric Pressure/Temperature Sensor

SKU: ADA992

$13.50 AUD, inc GST
$12.27 AUD, exc GST

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MPL115A2 - I2C Barometric Pressure/Temperature Sensor
13.5 AUD

SKU: ADA992

$13.50 AUD, inc GST
$12.27 AUD, exc GST
In stock, with a short lead time. 108 units dispatch in 4 to 7 days (in addition to the shipping method you choose). Our timing and stock is accurate. Delivery to you by Wed, 30th of Aug with Express Post within Australia.

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.

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Documentation and Resources:
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Product Comments

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

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

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.