In this study, an intelligent blind stick is designed and used to help blind people that they can move about without much problem on their own. In the event that a person leaves the intended location, this system is intended to detect the obstacle and communicate the individual's current location. By using anultrasonic sensor uppermost part of the stick, the stoop over obstacle recognition and prevention system detects obstacles in front of the user and activates an alarm and vibration to help prevent accidents and enable autonomous movement. In order to prevent someone from falling and perhaps causing significant injury, a technique for avoiding and detecting potholes is accomplished by installing an additional ultrasonic sensor in the blind stick. In the relevant range that the Arduino has specified, the ultrasonic sensor regularly detects obstructions. If any barriers are encountered, use the vibration of the blind stick to produce a buzzer sound to warn the blind person of his surroundings. A humidity sensor is positioned at the bottom of the stick to monitor the wetness, soil content, and availability of water and to alert the user whenever that amount surpasses a measurement's limit that could immerse his foot. In an emergency, the person's precise location is recorded via Global Positioning System (GPS) and transmitted to the caregiver via the Global System for Mobile communication (GSM) module. The microcontroller and various modules are constantly in contact with one another. As a result, when the switch is touched, the GPS module records the latitude and longitude of the spot where the blind person is standing and transmits it to the microcontroller, which transforms it into a Google map link and sends it to the caretaker's designated mobile number via the GSM module. All obstacles are correctly detected by this smart blind stick. The implemented blind stick is economically friendly and easy to use. This stick is designed such a way that it worked properly and quickly.
Keywords: Smart Stick, Arduino board, Ultrasonic Sensor, Moisture Sensor, Buzzers, Vibration Motor, GPS Module, GSM Module
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