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Striker

Striker measures real-time running cadence (i.e.) the frequency of strides.

chadChad
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1.6k views
1 comments
18 followers
7 likes
  • Description
  • Details
  • Files 0
  • Components 10
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  • Logs 1
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  • Instructions 0
  • Discussion 1
  • Official Hackaday Prize Entry
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Team (1)

  • chadChad

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  • Wristwatch Code Repo
  • Footpod Code Repo
  • 3D Models
  • Wristwatch Fritzing Sketch
  • Footpod Fritzing Sketch
  • Demo Video (YouTube)
completed project
arduino xbee running force cadence

Related lists

2014 Hackaday Prize: Quarterfinalists

Projects that were officially submitted to the 2014 Hackaday Prize

This project is submitted for

  • Official Hackaday Prize Entry

This project was created on 05/06/2014 and last updated 10 years ago.

Description

Studies of elite athletes have shown that a faster running cadence leads to increased speed and endurance as well as less injury caused by things like over-striding. Many articles quote a magic cadence number of 180 strides per minute (90 per foot) as being the perfect target. The 180 target is not without debate, but the focus on this project is not on finding the perfect number. Instead we are concerned with how to measure cadence in real-time so that one can actually target whatever number is right for them.

Sports watches exist that can sound an alarm when cadence is above or below a pre-defined threshold and/or show the average cadence after a run is complete. These are nice features, but what you really want to know is what is your cadence right now so that you can adjust in real-time to hit your target.

A more detailed post about this project can be found here - http://wearemanifold.com/striker-realtime-cadence-wearable/.

Components

  • 1 × Sparkfun Pro Mico This is a very small micro-controller. It fits neatly inside our watch enclosure. It is not an official Arduino board, but it is Arduino compatible. That basically means you have to do a little extra setup before you can program it via the Arduino IDE. The process is pretty straight foreword.
  • 1 × 850mAh Lithium Ion Battery
  • 1 × 110mAh Lithium Ion Battery
  • 1 × Power Cell (Lipo Charger/Booster) Our battery outputs 3.7V. The Pro Micro board requires a 5V power source. The power cell is used to boost the 3.7V output to 5V for the Pro Micro. The battery hooks into the power cell using a standard JST connector. The power cell provides a convenient micro-USB connector that can be used to charge the battery. We expose this connector on the side of the enclosure so that the watch can be recharged without removing the lid.
  • 1 × SPDT Mini Power Switch The on/off switch exposed on the outside of the watch enclosure.

View all 10 components

Project Logs
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  • Log #1

    Chad • 08/19/2014 at 20:32 • 0 comments

    This is a completed project.  For details on the build please see the following post - http://wearemanifold.com/striker-realtime-cadence-wearable/.

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Adam Fabio wrote 07/03/2014 at 05:36 • point
Great project Chad! Thanks for entering Striker in The Hackaday Prize! Are you planning to log the cadence data? It would be great to see a plot of cadence altitude (Maybe connected via an online map?).
Keep the information rolling in, and good luck - you may find yourself running in space!

  Are you sure? yes | no

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