Alisha – Arduino and CAD End Project

My Design 

So for my idea I was thinking of using a force sensor and LED lights. I would attach two force sensors to the bottom of the air cylinder pockets and use that as the input for the Arduino in order to turn on the different LED lights. Ideally the lights would light up depending on how much pressure is applied. So the first LED light would turn on with a little pressure, regular walking, the second LED light would turn on with a little more pressure like a stomp, and then the third light would light up with even more pressure like landing from a jump. Once all the LED lights turn on the LCD screen would light up and say “TOO MUCH PRESSURE” to alert the user. It can also be used as a safety feature so let the user know if they are walking unevenly which would align with the desires of the art student of this device being an assistive device for walking. The lights would go into the holes you see in the second image on the right but I changed the design slightly so the lights could be on the side and the LCD screens could be on the front easy to read. The first image on the left shows where the the LCD screens and all other wires go.

How it was achieved

I had to change my code from a sensor to a button for the sake of being able to construct the circuit in person in class but the purpose is still the same. Also in the real life project if we were to proceed with this it would be more than one LED light going up and down the air cylinder pocket not just one light but for the sake of seeing if it would all work I chose to work with one light. In tinkercad I constructed a circuit that would have a button and when pressed down upon the LED light would turn on and the LCD screen would light up saying “Too Much Pressure”. This stimulates the maximum level of pressure like landing from a jump as I mentioned before. The only reason I didn’t do the intermediate levels was because I had the button instead of a sensor but of course with the sensor one could include these intimidate steps of pressure.

Actual Circuit

Video of the circuit working: https://drive.google.com/file/d/11ePKLRyou0N34bgEaeccRLD6F8ju_tEK/view?usp=sharing