Development of tongue driven system for medical application using hall effect sensor and Arduino

R. Danabal, Sarath (2019) Development of tongue driven system for medical application using hall effect sensor and Arduino. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Due to spinal cords injuries and tetraplegia patients were struggling on society and families and cannot perform their daily routine of life. Tongue driven system had become new wireless support innovation developed for human with severe disability or tetraplegia patients to manage their movements and provide good access and effective environment. The reason why tongue was selected as a median for this system is because it is linked straigthly to the brain through cranial nerve which usually avoid injury in several backbone damages otherwise the neuromuscular illnesses tongue is extremely movable set of muscles which work negligible obtrusive, or subtle and powerful innovation. The main component of this project was Arduino, Hall Effect sensor, Ultrasonic sensor, H-Bridge motor driver, RF-Module and Power window motor. A tiny permanent magnet was held on the patient’s tongue and generate a magnetic field measured by Hall Effect magnetic sensors attached to the headset outside the mouth. Signal were obtained by sensors were transmitted wireless to the microcontroller and moves the motor on wheelchair. Arduino microcontroller were programmed to driven the motor driver and the motor will moved it to direction. There were four corresponding movement in this project which is forward, reverse, left and the right. As the safety propose of the system, ultrasonic sensors was added in order to detect and avoided obstacles. An analysis of test the accuracy and efficiency of RF-Module was done by comparing its distance and delay taken to transmit and recive data. Different of load weight is used to test the performance and maximum capacity of wheelchair can drive.

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