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Category: Android

Two Factor Authentication

Two Factor Authentication

Internet facing services are under constant attack. They are a coveted resource that provide footing when exploited. It’s prudent to not loose control of your services to abuse. One way to do this is to enable two factor authentication, commonly known as 2FA. Traditional authentication is based on what you know, a user name and a password. With 2FA, the second factor of authentication is what you have, a number token. In this post I’ll be covering how to setup…

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Serial Communications

Serial Communications

Ideas and thoughts are shared with people through speech, text, or some other form of communication.  This is how one knows, or at least has some idea of, what the other is thinking.  Electronic devices are similar.  Without communication, devices and people would be isolated in the cosmos.  Like language, devices use sets of standards and protocols to accomplish communication. In this post, I’ll introduce briefly parallel communication.  Next I’ll be covering the most fundamental communication methods of serial communication. …

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Spring Heartbreak

Spring Heartbreak

RPi Dashcam Here’s a step by step using raspivid, super simple. RPi Bluetooth and WiFi I found it much easier to just use a USB adapter Edimax EW-7811Un, these instructions make it look easier than what I experienced with Adafruits “Ourlink” adapters.  I think my new AP doesn’t support the Ourlink band, so I had a sourlink. Here’s one from Plugable. BLE Revisited Bluetooth basic tutorial – from Sparkfun BC118 BLE Mate 2 Hookup Guide – from Sparkfun…don’t get too…

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Control with Bluetooth LE

Control with Bluetooth LE

Introduction – there is more than one way to get bits from point to point Connecting devices using wired connections can be too complex or costly.  The agility of some systems is compromised when hard wiring the components.  Modifying becomes labor intensive.  This is problematic for systems that are used for research or development.  Wireless technology has advanced recently with the release of Bluetooth Low Energy. Bluetooth LE has brought about a simpler way to connect and control devices.  Earlier…

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Sensor Helmet Developments

Sensor Helmet Developments

CartoDB – Cloud based GPS visualization Back in April I had found ways to plot sensor readings using GPS Visualizer.  The website allowed me to upload my data and plot the results on a map.   Just recently I came across another online tool that has some enhanced features that made me take notice. CartoDB provides SaS that processes geospatial data and presents it in customized formats.  The helmet sensor readings will be geospatial data.  This will be ideal for that application….

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Heart of the matter – Bluetooth Low Energy

Heart of the matter – Bluetooth Low Energy

New phone means new things… My Android phone was ridiculously problematic.  The battery life wasn’t reliable and the reception spotty.  I finally conceded and replaced it with a iPhone 4s.  I have a 5s already and use a case on my bike to house it while travelling.  The new phone is a bit shorter than the 5s, so I thought I’d check with the case manufacturer for a 4s case. The manufacturer is Tigra Sports and they offer a variety of…

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Strava – Leading the pack in track data

Strava – Leading the pack in track data

Lately, something about Strava keeps me coming back for more.  This personal tracking app that runs on both iPhone and Android makes it a snap to log rides.  It’s not the simplicity or the details that has my attention, it’s the unseen potential.  The off the shelf app and plans offered by Strava don’t really give the casual onlooker an understanding of this.  It’s hidden in the myriad of API’s offered by third party developers. RaceShape.com has a site with three tools to enhance…

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Mapping Data – Open standards and transparency are key to value

Mapping Data – Open standards and transparency are key to value

I have been using GPS to record my biking for a few years now.  It started when I found Google’s MyTracks app in 2010, in preparation for my first STP ride.  The app was simple to use and I liked the fact that I could export track data.  This prompted me to use another program called TopoFusion.  The limits of the MyTracks app didn’t mater, because TopoFusion offered more features.  TopoFusion gave me a way to compare my rides and…

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Have a nice trip. See you next fall.

Have a nice trip. See you next fall.

Blockheads! I took a bad tumble off my bike this past weekend.  It was late at night and I decided to travel side streets to avoid any traffic.  There was a chock left in the road and I hit it coming out of a turn.  I was flying off the bike by the time I realized what was going on.  I saw a flash in my eyes when my helmet hit the ground.  I stood up slowly and took stock.  Thankfully no…

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Smart Phone Apps – Design with Purpose

Smart Phone Apps – Design with Purpose

With the end of the quarter close in sight, building a purposeful app is key now.  I’ve been fortunate to find so many resources, both online and printed, that have made the prospects of making an app feasible. With that said, the remainder of the quarter will be dedicated to this goal.  Build an app that measures and stores sound level readings and GPS data.  This data will be used to find any correlation between noise and air pollution. I happened to…

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