Make this 3D printed crab controller and crab simulator using Arduino Mega. via instructables
A 3D-printed, posable crab input joystick for controlling tetrapod walkers, motion capture, and simulations. With 4 legs and 3 degrees of freedom per leg, the Crab Controller sends data through an Arduino Mega via the Standard Firmata protocol to another device. Here, the crab controller is being used to control an underwater virtual crab simulator in real time. This project is expected to cost around 60-80 USD and 1 week for assembly.