Last post I showed you how to create a few soft switches. For the next lab, we created an analog pressure sensor that is made possible by a pressure-sensitive material called Velostat (available here). This stuff is pretty cool. The material itself is not very conductive, but it’s useful because it has variable resistance depending on how much you squeeze it. The pressure-sensitive button you see here is made by placing a piece of Velostat between two pieces of conductive material, and then that switch is housed inside of a neoprene sandwich.
I also made a stretch sensor using Eeonyx. This is a stretchy fabric that changes resistance the more you stretch it. I wanted to use it to make a baby-kick sensor for my wife, so I also carried this project forward into my final project. Here’s a little slide show of me experimenting with Eeonyx and neoprene.
