Development of Prototype Suit for Modeling of Lower Limbs Using NodeMcu and Matlab

Abstract

In the present project a prototype was developed, that models the lower limbs movement, unlike other commercial devices, this prototype seeks to obtain data through low-cost electronics in order to be replicated by the scientific community interested in this research line, it integrates electronic boards and programming software such as Arduino, NodeMCU, Accelerometers and Matlab. The sensors have been placed on a shield that facilitates their connection. The connection through a bus of all the sensors is presented in a NodeMCU board, through Wi-Fi sends a table of all this data for processed in Matlab. Data shows the main articular positions of the lower limbs of a person, using the homogeneous transformation matrices we obtain a seven-bar model that shows positions and accelerations produced by individual joints, the data obtained by the suit can be contrast with simulations performed in previous works, providing good results, and allowing future developments in topics such as gait analysis, teleoperation and modeling of physical therapies to ensure their effectiveness.