Android App Helps Quarterbacks Hone Spiral Skills

It's pretty amazing the things you can do with a modern day smartphone. It's possible to check up on e-mail, let your friends know where you're eating dinner, and even make a few phone calls. But you already knew that. What we're really after is the development community, which has put out some rather astounding software over the years. Android is a platform where wild developments are happening quickly, as Google's barrier to app entry is pretty low in terms of major OS barriers. If you build it, and it's not malicious, it'll almost definitely score a spot in the market. And even if not, it's fun to distribute APKs on your own for curious Android users to try out.

One of the more interesting applications we've seen this year comes in the form of a rather unusual video. It's the perfect spiral trainer for Android, which uses Bluetooth, an InvenSense module, an Android phone and a NERF football in order to help quarterbacks hone their spiral skills. It's obviously important in serious sporting leagues to have a beautiful spiral, and this Replay Football System allows tossers to evaluate their spiral in real time, and then check that data out in order to see just how beautiful (or ugly) their throws were.

In this demo, a Droid 2 is used, and the football is transmitting data over Bluetooth the entire time. The throw release speed, time in flight, RPM of spiral and spiral wobble (precession) are all displayed during playback, and the 3 graphs display the raw data from the Accelerometer, Gyro, and Magnetometer respectively. Have a look yourself; we doubt you'll be disappointing with the hard work that obviously went into this.
Via:  YouTube
inspector 3 years ago

wow... How much does it cost???

omegadraco 3 years ago

thats sweet : ) you think the NFL has nerds that give them this type of thing.

pjnissim 3 years ago

i hope Alex Smith has a droid....

ThunderBird 3 years ago

I just hope we have NFL football this year.

rapid1 3 years ago

I agree with Thunderbird on that one. As far as this app all it really seemed to do is film the throw and play it back. This is useful, but no suggestions so it would probably need to be used with someone who new the physic's of something like this.

coolice 3 years ago

Well... they now use GPS tracking systems when training players... so this is pretty cool! I remember in cricket once they were debating to use something form of tracking device (this was Discovery asia) for the science behind bowling... you think baseball pitching is crazy.... i think cricket bowling is crazy, the amount of spins, swings etc, Woah (crickets been pretty big this time around in Toronto, so i've been following up and learning a lot haha)

So this is pretty cool indeed!

OSunday 3 years ago

This is a neat application and use of blutooth but I dont think at this specific state is it suitable for possessional sports, A Nerf Football doesn't have the same dimensions, aerodynamics or weight as a regulation NFL or NCAA football and when you're dealing with a ball made of foam, its easier to put the hardware and blu-tooth or gps tracking devices inside them but if you were to try to do that with a leather or synthetic leather material NCAA or NFL football you'd pop the sucker or add extra weight to a part that would make the throw's off balance and unable to spiral anyways. Sort of defeating the purpose of the app itself

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