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Detailed Design

Version 2 (J. Simmons, 09/10/2013 10:51 am)

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h1. v0.2 Detailed Design
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The v0.2 design is based on the answer to Q4 of the [[Initial Questions]].  The "Fritzing drawing":https://opendesignengine.net/dmsf_files/255?download=287 shown below covers the prototype design.  The remainder of this document covers the design decisions by addressing each of the requirements.






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!https://opendesignengine.net/dmsf_files/254?download=288!






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h2. Detect movement on the exercise equipment and send walking command to video game (typically by "pressing" the 'w' key)






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To meet this requirement, the v0.2 *holoseat* controller replaces the Arduino Uno + USB Keyboard Controller from v0.1 with an Arduino Leonardo.  The Leonardo has built-in "keyboard emulation":http://arduino.cc/en/Tutorial/KeyboardMessage






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The sensing remains implemented using a reed switch.  For v0.2, the reed switch used will be a "Radioshack 55050593":http://www.radioshack.com/product/index.jsp?productId=12706328 as with the "Arduino Bike Spedometer":http://www.instructables.com/id/Arduino-Bike-Speedometer/