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Month: July 2014

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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Sensor Helmet Power

Sensor Helmet Power

What will I need? I think I finally decided on what to use for powering the helmet devices.  My February article didn’t give to much technical detail about what would be used.  It was more a to do list for what to spec out.  My March article was more toward the auxiliary power supply to USB devices.  Nothing so far specific to the helmet nor detailed enough to be of any use. The figure that I’ve estimated for all of…

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My oh my! Raspberry Pi in July

My oh my! Raspberry Pi in July

A new piece of Pi… Got a message from the folks at MCM Electronics about the latest offering of Raspberry Pi.  The new Model B offers some interesting features that I won’t go into details about here.  You can find that on their website.  I will note that it has more IO’s than the previous versions, but the fundamental hardware is the same. What got me to post about this is Apress sent more an offer for one of their…

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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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The Panoramic Ball – It’s a toss up.

The Panoramic Ball – It’s a toss up.

Never before have I found a device that is unique, yet at the same time being widely offered.  All of the makers claim to be the founders of the technology.  I won’t challenge those claims.  What got me was I found them all one evening in the span of 30 minutes.  I wasn’t even trying to find them, the all knowing algorithm of online search engines brought them to me. First up – the Squio Throwable 360 Panoramic Camera Next…

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You’re always near, even when you’re far…in IR that is.

You’re always near, even when you’re far…in IR that is.

Cheap camera chops… I found an article written hundreds of years ago about CMOS image sensors requiring near IR filters.  These filters are needed because of the sensing range of CMOS image sensors.  Without the filters, the image processing becomes unstable.  This is because the processing is centered around the human visual sensing range.  So, long story short, 99% of CMOS image sensors come with the filter.  That’s cool I thought, and I proceeded to remove it from my cheap…

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Enjoy the silence – rides without the wind noise

Enjoy the silence – rides without the wind noise

That soothing white noise… The sound of wind rushing past while riding has been revered longer than written history might recall.  It’s a kind reminder that I’m moving fast.  When it came to my video recordings, I’m not as fond of it.  The background sound is completely washed out by the wind noise.  It made me think about hearing loss and being distracted from danger.  I ride a lot, so it’s a valid concern. The light bulb above the head……

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Dinotte headlight

Dinotte headlight

It slices in the dark… Here is what I did with my Dinotte head lamp to make it work comfortably with my setup.  First off, the unit that I purchased is the 400L headlight without the battery.  It ran for around $150 and this was my primary reason for being reluctant for screwing it up with a modification. Not long after placing the order, the headlight arrived.  The headlight was built solid and I had to poke around to get…

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In Stitches

In Stitches

A search for stereo photography morphed into 3D panoramic videos, I didn’t expect to go that far with it…  I had found instructions on panoramic photography from Florian Knorn’s Pano.ie website awhile back.  I’m not entirely new to the prospects of panoramic imaging.  I’ve used image stitching a long time ago.  It’s mainstream now.  The iPhone has made it effortless with the built in pano option.  I still think the behind the scenes tour that Florian gives is well worth the…

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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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