# Using MPL3115A2 with CircuitPython ## Overview ![](https://cdn-learn.adafruit.com/assets/assets/000/051/042/medium800/sensors_IMG_6871.jpg?1518739643) The [MPL3115A2](https://www.adafruit.com/product/1893) is a handy high precision barometric pressure that you can read from CircuitPython and Python code!  This sensor provides pressure, temperature, and even calculates altitude (based on pressure) automatically for you.  Best of all with a simple CircuitPython module you can read data from the sensor with ease.  This guide shows how to connect a MPL3115A2 to a CircuitPython board and read data from it with Python code! - [Next Page](https://learn.adafruit.com/using-mpl3115a2-with-circuitpython/hardware.md) ## Featured Products ### MPL3115A2 - I2C Barometric Pressure/Altitude/Temperature Sensor [MPL3115A2 - I2C Barometric Pressure/Altitude/Temperature Sensor](https://www.adafruit.com/product/1893) 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). In Stock [Buy Now](https://www.adafruit.com/product/1893) [Related Guides to the Product](https://learn.adafruit.com/products/1893/guides) ### Adafruit Feather M0 Basic Proto - ATSAMD21 Cortex M0 [Adafruit Feather M0 Basic Proto - ATSAMD21 Cortex M0](https://www.adafruit.com/product/2772) Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the  **Feather M0 Basic Proto** , it has a bunch of prototyping space... In Stock [Buy Now](https://www.adafruit.com/product/2772) [Related Guides to the Product](https://learn.adafruit.com/products/2772/guides) ### Adafruit Feather M0 Express [Adafruit Feather M0 Express](https://www.adafruit.com/product/3403) At the Feather M0's heart is an ATSAMD21G18 ARM Cortex M0+ processor, clocked at 48 MHz and at 3.3V logic, the same one used in the new [Arduino Zero](https://www.adafruit.com/products/2843). This chip has a whopping 256K of FLASH (8x more than the Atmega328 or 32u4) and... In Stock [Buy Now](https://www.adafruit.com/product/3403) [Related Guides to the Product](https://learn.adafruit.com/products/3403/guides) ### Adafruit Trinket M0 - for use with CircuitPython & Arduino IDE [Adafruit Trinket M0 - for use with CircuitPython & Arduino IDE](https://www.adafruit.com/product/3500) The Adafruit Trinket M0 may be small, but do not be fooled by its size! It's a tiny microcontroller board, built around the Atmel ATSAMD21, a little chip with _a lot_ of power. We wanted to design a microcontroller board that was small enough to fit into any project, and low... In Stock [Buy Now](https://www.adafruit.com/product/3500) [Related Guides to the Product](https://learn.adafruit.com/products/3500/guides) ### Adafruit GEMMA M0 - Miniature wearable electronic platform [Adafruit GEMMA M0 - Miniature wearable electronic platform](https://www.adafruit.com/product/3501) The **Adafruit Gemma M0** is a super small microcontroller board, with just enough built-in to create many simple projects. It may look small and cute: round, about the size of a quarter, with friendly alligator-clip sew pads. But do not be fooled! The Gemma M0 is incredibly... In Stock [Buy Now](https://www.adafruit.com/product/3501) [Related Guides to the Product](https://learn.adafruit.com/products/3501/guides) ### Adafruit METRO M0 Express - designed for CircuitPython [Adafruit METRO M0 Express - designed for CircuitPython](https://www.adafruit.com/product/3505) Metro is our series of microcontroller boards for use with the Arduino IDE. This new **Metro M0 Express** board looks a whole lot like our [original Metro 328](https://www.adafruit.com/product/2488), but with a huge upgrade. Instead of the ATmega328, this Metro... In Stock [Buy Now](https://www.adafruit.com/product/3505) [Related Guides to the Product](https://learn.adafruit.com/products/3505/guides) ## Related Guides - [Adafruit Feather M0 Express](https://learn.adafruit.com/adafruit-feather-m0-express-designed-for-circuit-python-circuitpython.md) - [Adafruit Metro M0 Express](https://learn.adafruit.com/adafruit-metro-m0-express.md) - [Adafruit Trinket M0](https://learn.adafruit.com/adafruit-trinket-m0-circuitpython-arduino.md) - [Gemma Color Touch Pendant Necklace](https://learn.adafruit.com/gemma-color-touch-pendant-necklace.md) - [Mu Keyboard Shortcut Cheat Sheets](https://learn.adafruit.com/mu-keyboard-shortcut-cheat-sheets.md) - [NeoPixel GoPro Lens Light](https://learn.adafruit.com/neopixel-gopro-lens-light.md) - [Using Servos With CircuitPython and Arduino](https://learn.adafruit.com/using-servos-with-circuitpython.md) - [Adafruit Gemma M0](https://learn.adafruit.com/adafruit-gemma-m0.md) - [CircuitPython Hardware: LED Backpacks & FeatherWings](https://learn.adafruit.com/micropython-hardware-led-backpacks-and-featherwings.md) - [Porting an Arduino library to CircuitPython: VL6180X Distance Sensor](https://learn.adafruit.com/porting-an-arduino-library-to-circuitpython-vl6180x-distance-sensor.md) - [Clockwork Goggles](https://learn.adafruit.com/gemma-m0-clockwork-goggles.md) - [Chirping Plush Owl Toy](https://learn.adafruit.com/chirping-plush-owl-toy.md) - [Introducing Adafruit Feather](https://learn.adafruit.com/adafruit-feather.md) - [Creating and sharing a CircuitPython library](https://learn.adafruit.com/creating-and-sharing-a-circuitpython-library.md) - [Extending CircuitPython: An Introduction](https://learn.adafruit.com/extending-circuitpython.md) - [Installing CircuitPython on SAMD21 Boards](https://learn.adafruit.com/installing-circuitpython-on-samd21-boards.md) - [Stand-alone programming AVRs using CircuitPython](https://learn.adafruit.com/stand-alone-programming-avrs-using-circuitpython.md) - [Esenciales para CircuitPython](https://learn.adafruit.com/esenciales-para-circuitpython.md)