View source for Pressure Temperature Altimeter MPL3115A2 I2C

[[Image:TArduinoMPL3115A2.png]]

== Summary ==
The Pressure Temperature Altimeter MPL3115A2 component reads atmospheric pressure, temperature, and altitude data from an NXP MPL3115A2 sensor. It communicates using the I2C interface and outputs the measured values.

== Description ==
The MPL3115A2 is a compact, piezoresistive pressure sensor with an I2C digital interface that provides precise pressure, temperature, and altitude measurements. The sensor features programmable events and interrupts with configurable pressure/altitude thresholds and timing. It offers altitude data acquisition with a programmable baseline pressure reference and includes temperature measurement capability. Typical applications include weather stations, altitude tracking, GPS enhancement, and vertical velocity indication.

<b>Diagram:</b>

[[Image:TArduinoMPL3115A2.Preview.png]]

== Properties ==
*'''Address''' – I2C device address (Default: 0x60).
*'''Altitude:'''
**'''Baseline Pressure''' – Reference pressure for altitude calculation in hPa (Default: 1013.26).
**'''Enabled''' – Enables altitude measurement output (Default: True).
**'''In Feet''' – When enabled, altitude is output in feet; otherwise in meters (Default: False).
*'''Averaging''' – Number of samples to average for measurements (Default: 128).
*'''Enabled''' – Enables or disables the component's functionality (Default: True).
*'''Name''' – The user-defined name for the component (Default: SensorMPL3115A2).
*'''Pressure:'''
**'''Enabled''' – Enables pressure measurement output (Default: True).
*'''Temperature:'''
**'''Enabled''' – Enables temperature measurement output (Default: True).
**'''In Fahrenheit''' – When enabled, temperature is output in Fahrenheit; otherwise in Celsius (Default: False).

== Pins ==
=== Input Pins ===
*'''Clock''' (digital) – Clock signal input for triggering measurements.
*'''Reset''' (digital) – Reset output signal.
*'''Control''' (i2c) – I2C control interface.

=== Output Pins ===
*'''Pressure (Pa)''' (analog) – Outputs the measured pressure in Pascals.
*'''Temperature''' (analog) – Outputs the measured ambient temperature.
*'''Altitude''' (analog) – Outputs the calculated altitude.

== Categories ==
*[[Image:I2C.png]] [[Category:I2C]] – Components that use I2C communication protocol.
*[[Image:Sensors.png]] [[Category:Sensors]] – Components used for environmental sensing.
*[[Image:Pressure.png]] [[Category:Pressure]] – Pressure sensing components.
*[[Image:Temperature.png]] [[Category:Temperature]] – Temperature sensing components.
*[[Image:Altimeter.png]] [[Category:Altimeter]] – Altitude measurement components.

[[Category:Components]]