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Walker; 2013 National microMedic Contest Entry

Walker; 2013 National microMedic Contest Entry

Jul 31, 2013

My entry to the Parallax, Inc. 2013 National microMedic Contest. Walker is a Windows Phone 8 application for activity tracking. It uses geoLocation to record GPS data. It creates a .gpx file and saves to SkyDrive. Sensor data created from a Parallax propeller with temperature, humidity and heart rate sensor data is sent to Walker via bluetooth. This sensor data along with summary activity data is persisted to Microsoft Windows Azure cloud storage. The .gpx file association in the windows phone allows a suitable gpx viewer to be launched to view the activity. This .gpx file can be visualized on many sites around the internet. For instance here. Along with my Right Weight Windows phone 8 and/or Windows 8 applications I use Walker to track my physical activities along with environmental and heart rate data as well as weight loss (or gain). Walker Sensor Board The Walker Sensor board is built on a Parallax Proto Board. It consists of a Parallax Propeller MPU, Sensirion Temperature and Humidity sensor and a Polar heart rate sensor receiver. The bluetooth connectivity is accomplished with an RN41-XV in XBee form factor on an XBee explorer. Sensor reading are updated every fifteen seconds. See source code for theory of operation. (click on any image to enlarge) Schematic Source code (available under MIT license) Walker-BluetoothSend Parallax .spin code for sensor data bluetooth send. Walker-Wp8 Microsoft Windows Phone 8 activity tracker. Windows phone application, Walker, screen shots Activity, ready to start Activity, ready to stop Debug log Previous activities from Azure cloud storage, displaying activity date and distance traveled. Map from .gpx file. Normally would have an activity track of multiple geo locations. This is a single location. Settings page allows chosing bluetooth, .gpx launch and/or Azure cloud persistence. .gpx file association launch of GPXviewer. Resources used in production and documentation of this project Schematic created with Fritzing Windows phone tiles created with PerfectTile GPS Exchange format Windows phone app uses these projects MVVM Light toolkit Fody Windows Phone...

Dagu i-Racer Windows Phone 8

Perhaps I should have worn shoes! i-Racer is a Bluetooth enabled Windows Phone 8 application that will control a Dagu i-Racer remote control model car. I posted a short video of the first working prototype of my app to control the Dagu i-Racer remote control car on youtube. No it didn’t go viral but at the time of this writing it’s the most widely viewed nerding of mine in any of the social media with a whopping 1,303 views. I’ve lost a lot of sleep over that one thumbs down – out of eleven. (hi mom) Check out i-Racer in the windows phone store. I’ve also published the source code on GitHub. It’s probably the simplest app _ever_ to use MVVM Light. I don’t even begin to know how to program in code behind. ;-)...