Designe An Electrical System for Adjustable Hearing Aid Based on Smartphone.

In this project we have designed an adjustable hearing aid by using android smartphone application via Bluetooth connection for controlling the amplification process. Arduino Nano is used to execute all commands and HC-06 Bluetooth module is used in this system. The Bluetooth connection transmit the data to Arduino to provide digital outputs to the programmable gain amplifiers (PGA) and outputs the tone during the tuning state. The final constructed hearing aid’s device was experimented on different set of people with different hearing loss degree .The final test showed that the device could improve the hearing for people with partial hearing problems. [ABSTRACT FROM AUTHOR]