Our concept for the Whole Body Project was to use a sensor to measure your swing follow through. The practical applications for this concept could range from squash, tennis to golf and hockey. This is a tool that would be used by the athlete to train them to follow through their swing fully. this would ensure that the athlete wouldn’t hurt themselves by stopping short in their follow through and improves the shot.
Our initial plan was to use a stretch sensor to measure how far you were following though and use LEDs to display how far you stretched out. Unfortunately we lost the stretch sensor and we were forced to improvise.
After Reviewing what choices we had left we decided to create a pressure sensitive soft sensor using the sandwich method.
The code that we used was a basic piece from photo resistor project from wt1 and adapted to fit our needs.
Code was modified so that when the sensor value was over 850 the LED would go on and the serial readout would read “STRETCH!!!”.
Problems occurred while I was attaching the components together. The wire gage that i chose was much to small and as a result the wire became brittle and cracked at the soldier points making it difficult to complete without failure.
Conductive fabric sandwiched between cotton t-shirt material, and Velostat. wire soldiered to conductive fabric.
Conductive fabric ironed onto jersey, sandwich sensor then sowed into place to complete the sensor. all connected to the Lily Pad (+,-,A0)
Finished product while sensor is being compressed. The LED was used here to visualize to the class that the sensor has actual output, this is a primitive prototype for athletic equipment. Different signal output would benefit the user exponentially, a wireless watch application comes to mind a slight vibration with a delay could be implemented (golf) wristband with light or beep (tennis/squash).