International Journal of Engineering Inventions e-ISSN: 2278-7461, p-ISSN: 2319-6491 Volume 9, Issue 1 [Jan. 2020] PP: 09-14 www.ijeijournal.com Page | 9 An IoT based Voice Controlled Blind Stick to Guide Blind People Abhijit Pathak 1* , Md. Adil 2 , Taiyaba Shadaka Rafa 3 , Jannatul Ferdoush 4 , Abir Mahmud 5 1,2,3,4,5 Department of Computer Science and Engineering, BGC Trust University Bangladesh, Chattogram, Bangladesh Corresponding Author*: Abhijit Pathak ABSTRACT: Visually impaired people find it difficult to identify objects in front of them while walking down the street, which makes it risky. The smart stick comes as a way to define the world around them. In this paper, we propose a solution, presented in a smart stick with an infrared sensor to detect staircases and a pair of ultrasonic sensors in order to detect any other obstacles in front of the user, within four meters. Furthermore, another sensor is placed at the bottom of the stick to prevent puddles. Speech warning message is triggered upon identification of any obstacle. About 39 million people are permanently blind and about 285 billion are visually impaired. Blind person, who doesn't walk alone, struggles to do his own job. There's always fear of getting injured and getting into an accident. How can we solve those problems? Indeed, this paper has provided a solution which can relieve the blind from this problem. Which is "Blind Stand with voice control to guide blind people" This is essentially a device consisting of Arduino UNO, Ultrasonic Sensor and Voice Module that informs and notifies the blind person of the hazards This will help a blind person to walk comfortably and keep themselves safe from danger. Keywords: Blind, Intelligent Walking Stick, Physically Impaired, Ultrasonic Sensor, ISD 1820, Arduino UNO. --------------------------------------------------------------------------------------------------------------------------------------- Date of Submıssıon: 28-02-2020 Date of Acceptance: 08-03-2020 --------------------------------------------------------------------------------------------------------------------------------------- I. INTRODUCTION There are about 285 billion visually impaired people worldwide, of whom 39 million are completely blind. The number of blind people around the world will rise to double by 2020 according to WHO and IAPB. Blind people are having difficulty moving or surviving without support. Using Voice Controlled Blind Stick is therefore a gift for people with blindness. Using Arduino UNO, Ultrasonic Sensor, Voice playback module are used, we have built a Smart Voice Controlled blind button. Arduino is a microcontroller that can very easily do all the calculations with great precision. The new blind stick allowing visually challenged people to navigate using advanced technology with ease. In addition to voice module, the blind stick is combined with ultrasonic sensor. The ultrasonic sensor senses the barrier, and the user is warned by the voice module. Persons with visual impairments have difficulty communicating and sensing their surroundings. They have little contact with the surrounding countryside. Physical movement is a problem for visually impaired people, because determining where he is and how to get where he needs to go from one location to another can become difficult. He will carry a sighted family member or his companion to assist him in exploring unknown locations. More than half of the world’s legally blind are unemployed. Because the types of jobs that they can do are minimal. We have less of a job rate. They rely on mobility and financial support for their families. They're opposed to their freedom from interacting with people and social activities. In the past, different systems have restricted functionality without a solid understanding of non-visual perception. Many devices are for indoor navigation only, and do not have any obstacle identification and position determination functionality in outdoor environments. Scientists have spent decades creating an interactive and responsive stick to support and warn visually impaired people from obstacles and provide knowledge about where they are. Work has been carried out over the last decades on new devices to develop a good and reliable system for visually impaired people to identify obstacles and alert them in areas of risk. There are certain devices that have certain shortcomings. II. LITERATURE REVIEW This segment discusses important related work on developing smart sticks for blind and elderly people - The authors proposed using ultrasonic sensors that detect the obstacles in the blind's way. It consists of three different directions, a microcontroller, buzzer, and DC vibration motor, to scan these sensors. When any obstacle is detected the buzzer and vibration motor is triggered. Ayush Wattal, Ashuthosh Ojha, Manoj Kumar suggested Smart Belt for Blind to use an ultrasound sensor embedded belt to detect the barrier. The belt also has a buzzer which vibrates when it detects an obstacle. The entire system is designed in such a way that the measured distance is sent to the blind person as an audio message,