Skip to main content

Developing Google Glass application showing the Heart Beat Rate


Wearable Sensors + Google Glass

Wearable sensors  are a lot of fun! I played with them for some time by now, both professionally (at work), and for the coding pleasure. This post is about my latest weekend project - native google glasses app showing heart rate. The idea is to continuously measure hear rate using the sensor and to show pulse rate in real time, for example, while running or exercising. Honestly, I did not find running with Google Glasses to be much fun (as they tend to fell off when I am running), but to see what makes my heart beat faster is an interesting and educational experience.

Google Glass (GG)

Turns out to be a nice piece of hardware that is a fun to work with: reasonably fast processor, Android 4.0.1, wide range of sensors, WiFi, and Bluetooth interface!

Ingredients


Preparation

First step is to set up GDK from Google: https://developers.google.com/glass/develop/gdk/quick-start

Next step to learn how to use GG screen factor and set up glass emulation. It's very straightforward and described in http://stackoverflow.com/questions/18490150/what-is-the-correct-device-definition-for-google-glass-for-a-simulator-in-eclip
  

Cooking

I uploaded google glass gode to GitHub:
https://github.com/leybzon/GlassHeart-master

Serving

I like adding nice graphics on top of my code. For this project, I found a nice heart image on http://wbom.wordpress.com/2012/02/07/a-change-of-heart-that-matters/

Labels:

Comments

Post a Comment

Popular posts from this blog

Freebase Hack Day

Post a Comment
Read more

Facebook Friends Connect

Is a way to extend external sites to provide: FB identity FB friends (relationship) Feed to FB   Demo app at http://www.somethingtoputhere.com/therunaround User experience: login: js login method requiresession(): detects state of usr-FB relationship, log-in into FB if needed. If user has not authorised app - present app auth dialog. If already has session - just go init JS, require session   access FB data: - FBML on external site - use JS FBML parser and replace in browser DOM with FB data - JS based API to get FB data, REST API on the server site. Sessions work accross any API - only small subset of FBML us supported at the moment   adding social content: - use access API   Connections: app developers can suggest connections (using e-mail hash) user get connect request on FB Move content from external sites to FB app can register feed template (3 types of stories) call JS "showfeeddialog" to request user to confirm data sharing on FB. privacy protection: app ca...
Post a Comment
Read more

Respect Coin

Respect I think it's time to talk about currency. Let's create a Respect Coin. Step 1. Install OpenZeppelin library  npm install zeppelin-solidity When it comes to coins, I like to use some functions that smart people already implemented and other smart people verified. I think that Zeppelin is a nice collection of Solidity contracts that can be trusted. Let's use the StandardToken contract and use it as a parent class for our own RespectCoin contract. Step 2. Create RespectCoin contract and store it in "contracts/RespectCoin.sol" file  pragma solidity ^0.4.4; import "../node_modules/zeppelin-solidity/contracts/token/StandardToken.sol"; /** * @title RespectCoin * @dev ERC20 Token example, where all tokens are pre-assigned to th e creator. * Note they can later distribute these tokens as they wish using `transfer` and other * `StandardToken` functions. */ contract RespectCoin is StandardToken { string public constant name = ...
Post a Comment
Read more