Help with Electrical Pedometer Project (Like Nike+)

Running Shoes/Running Gear Other

14 years ago 06/03/2009 3:20pm EDT

I am trying to make a system similar to the Nike+ product that Nike and Apple created. For the most part I am looking to make a sensor that attaches to the shoe (probably in the sole, but whatever) and can keep track of foot strikes and thus distance (approximately). I also want to be able to relay this info to a receiver that you can wear like a watch and be able to see the data.

For the foot sensor I was planning on using an accelerometer and a transmitter, and obviously for the watch/receiver, i would use a receiver.

What other hardware would I need, and does anyone have any ideas or experience with a good way to proceed. Help in regards to where to purchase items, or any reccomendations for items would be appreciated.

Thanks for any help!

14 years ago 06/03/2009 4:20pm EDT

re: Jefe

You seem to understand this, but an accelerometer keeps track of more than just the number of footstrikes.

More to the point, why are you doing this? Everything you are seeking is in the Nike+ product. I could be a smart ass and say:

Idea for sensor - Nike+ chip

Idea for receiver - Apple iPod or Nike sportband (like a watch)

Where to purchase - Niketown or Apple store

14 years ago 06/03/2009 4:32pm EDT

re: Jefe

you would need more conveniently, a force sensor...a small battery, some sort of RF transmitter

then a receiver, likely a small pic microprocesser, and a digital display

try digikey

it will take quite more computing knowledge than you likely possess to convert accelerometer data into steps

14 years ago 06/03/2009 6:45pm EDT

re: Augustus

Augustus wrote:
You seem to understand this, but an accelerometer keeps track of more than just the number of footstrikes.
More to the point, why are you doing this? Everything you are seeking is in the Nike+ product.

I am doing this as a project and I think it would be cool to be able to use something that I made by myself.

14 years ago 06/03/2009 6:46pm EDT

re: uh_no

uh_no wrote:
you would need more conveniently, a force sensor...a small battery, some sort of RF transmitter
then a receiver, likely a small pic microprocesser, and a digital display

I was thinking with an accelerometer you might be able to find out how fast the sensor is moving, and thus compute distance more accurately, but I figured at the simplest level you could also determine when the foot hit the ground and and just multiply that by a preset distance/stride.

So far it sounds like I need the transmitter/receiver, some sort of microcontroller, battery on both ends, and a display. Then either a force sensor or accelerometer. I will definitely check out digikey. Thanks for the help so far!

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