I wanted to create a soft robot using pneumatic pressure for locomotion, but as a newbie to both Arduino and silicone casting, I decided to make a simplified version using more off-the-shelf, readily-available materials.
This inch worm soft robot uses a party balloon, a hacked heart rate monitor (for the pump, psi sensor, etc.) and some sheet silicone and vinyl. And an Arduino starter kit, of course!
This robot is still connected to the Arduino UNO (and connected back to a laptop), but I eventually will miniaturize it and transfer it to a Pro-trinket and house it within the robot. Updates on this to follow!