DEAF's Horn

we usually use to see when a car horns in front of a deaf person he dosn't react but with my device when the car horns then the condensor microphone catches the sound waves and then covert these sound waves into electrical waves and there is a vibrating moter which vibrates when car horns.

materials required

timer chip(555)

capacitors

resistors

condensor mic

vibrating moter

circuit board

transitors

values of resistors and capcitors are showwn in circuit diagram