mpl3115a2

Node js library for the MPL3115A2.

This is very much WIP and will be extended along the way. The code however reflects what is needed to get the MPL3115A2 and that in itself may prove usefull.

TypeScript usage

example

Getting temperature and pressure (altitude is not supported yet) is as esay as:

import { MPL3115A2 } from 'mpl3115a2';

let reader = new MPL3115A2();
let reading = reader.getSinglePressureReadings();

console.log('pressure:', reading.pressure.toFixed(4), 'hPa');
console.log('temperature:', reading.temperature.toFixed(1), '\u00B0' + 'C');

MPL3115A2 class

operatingMode property

The operatingMode values comes from the OperatingMode enum. 0 (default) is Barometer, 1 is Altimeter

standby property`

returns true is the device is in standby mode

toStandby method

Sets the device in standby. Keeps the other settings for CtrlReg1

toActive method

Set the device to active mode. Keep the other settings for CtrlReg1. Whether pressure or altitude is measured depends on the operatingMode property.

getSinglePressureReading method

Get a single reading based on the mode input parameter (OperatingMode). If no mode is specified, the value of operatingMode will be taken. Return an PressureReading object.

getPressureReading method

Waits for data to be present and returns an PressureReading object. If the device is in standby, an error will be thrown.

todo

Of course the mpl3115a2 is capable of much more. Plans are:

• reading the mpl3115a2 buffers
• setting sample times
• FIFO
• interrupts

mpl3115a2 documentation

https://www.nxp.com/docs/en/data-sheet/MPL3115A2.pdf https://www.nxp.com/docs/en/application-note/AN4519.pdf