Introduction

nodejs library for MetaWear platform from https://www.mbientlab.com/

Installation

Build package from repository:

git clone git@github.com:brainexe/node-metawear.git
cd node-metawear
npm install

An alternative is to install the NPM module directly:

npm install node-metawear

Additionally you have to follow some steps, depending of your OS

Linux (Ubuntu / RaspberryPi)

Install required system packages

sudo apt-get install bluetooth bluez-utils libbluetooth-dev

This command grants the node binary cap_net_raw privileges, so it can start/stop BLE advertising. Then you don't need the "sudo" prefix anymore:

sudo setcap cap_net_raw+eip $(eval readlink -f `which node`)

ChromeOS

Same as Linux, but the main difference here is that you’ll need to run Node through host-dbus, since it’s accessing the Bluetooth adapter attached through Chrome OS.

sudo setcap cap_net_raw+eip $(eval readlink -f `which node`)
export DEBUG="noble-device" 
host-dbus node examples/all.js

thx to Lance

Mac OS

npm install
DEBUG="noble-device" node examples/all.js

Run

Run examples in debug output

DEBUG="noble-device" node examples/all.js

Functions

The functionality is very limited at the moment:

Connection Parameters setup
Control LED
Start buzzer/motor
Read/Set Device name
Read switch status (+ pressed/release events)
Read out battery status
Accelerometer / Gyroscope
Step counter
Temperature sensor
Ambient light sensor
Barometer sensor
BMM150 Magnetometer
QUATERNION data from SensorFusion, ONLY FOR METAMOTION R Boards !!

Next release -> v1.1.0

SensorFusion - NDOF mode support for all output types
Acceleromter - TAP_CONFIG, ORIENT_CONFIG, FLAT_CONFIG, LOW_HIGH_G_CONFIG
Refactoring of the sensor configuration implementation

Note : The versioning restarted at v1.0.0 in order to better handle the major and minor releases as from now.

Run unit tests

npm install -g jasmine
npm test

navarrocantero/node-metawear