The Internet overflows with prosthetics projects, and to a large extent this is somewhat understandable. Prosthetic devices are ultimately a custom made for each user, and 3D printers are trying to find a purpose. Put two and two together, and you’re going to get a few plastic limbs.
The electronics required for advanced prosthetics are a bit harder than a 3D scanner and a printer. If you’re designing a robotic leg, you will need to pump several hundred watts through an actuator to move a human forward. For the last few years, [Jean-François Duval] has been working on this problem at the MIT Media Lab Biomechatronics group and has come up with his entry for the Hackaday Prize. It’s a motor and motor control system for wearable robotics that addresses the problems no other project has thought of yet.
The goal of the FlexSEA isn’t to build prosthetics and wearable robotics – the goal is to build the electronics that drive these wearables. This means doing everything from driving motors, regulating power consumption, running control loops, and communicating with sensors. To accomplish this, [Jean-François] is using the BeagleBone Black, a Cypress PSoC, and an STM32F4, all very capable bits of hardware.
So far, [Jean-François] has documented the hardware and the software for the current controller, and has a few demo videos of his hardware in action. You can check that out below.