Pebble Health
An Intro To Wearables and Fitness Tracking
Me
@anaptfox
Taron Foxworth
Software Engineer
I Love Wearables :)
What is a wearable?
Clothing and/or accessory incorporating computer and advanced electronic technologies.
Google Glass
Nod
Myo Gesture Control Armband
Fit Bit Force
JawboneUP
Nike Sports Watch
Fitness Wearables
What can they do?
- Steps Traveled
- Calories Burned
- Hours Slept
- Distance Traveled
- Quality of Sleep
- Active Minutes
- Inactivity Alarm
My Current State
What I eventually realized...
1. I'm not Iron Man :(
2. I had to keep a lot of things charged
I wanted just one device. So I started researching.
THE PEBBLE IS AWESOME.
How?
3D accelerometer
Pebble Health
Pebble Health Philosophy
Goal Tracking vs. Inactivity TrackingLive Data
Demo Here
Pebble App
Watch App
C programming Language
Step Calculation
Isaiah PebbleKit
Javascript
HTTP Request
Cross Platform
Web Server
No Sql Database
Real time communication using web sockets
Asynchronous Javascript on the server
Modulus
Real Time MVC Framework
Client App
Client Side Javascript Framework
Socket.io
Angular JS
Architecture
Problems
- Bleeding Edge Pebble
- Sails.js
- Mobile Latency
- Location and Distance
Steps
Accelerometer sampling rate : 50hz
Subscribe to receive batch every 25 samples.
Average every 5 samples
Calculate acceleration vector
Compare
Step Error
Error rate
Factors That Effect Steps
Driving
Working out
Waving
Giving a Talk
FitBit - 2782 Steps
PebbleHealth - 2953 step
5.78% Error
Location
Isaiah PebbleKit
Grab location using phone's GPS
Distance
Haversine formula
Speed
Calories
Basal Metabolic Rate
2.67 Calories / min
1920.9 Calories/ day
According to Shape Up America, you burn 1 calorie every 20 steps
Resting Calories Burned
Calories by Step
Practical Uses and The Future
PebbleJoint
Voice Reminders
Thank You
Questions
Pebble Health
By Taron Foxworth
Pebble Health
Presentation for my Senior Seminar at Xavier University
