Visually challenged people face great difficulty in doing essential activities in everyday life. Traditional cane type devices help them. Cane type devices are difficult to use and handle. We aim to design a handheld device instead of cane type device. We are developing this device considering that they are only blind and not deaf. Visually challenged people to get all the inputs by hearing and sensing. So, the device is designed so that the person can predict the output by two different ways, Bluetooth headset and buzzer. We have interfaced ATMEGA328p with various kinds of sensors on our own designed and fabricated PCB Board. The use of Printed Circuit Board increases life time, mechanically supported electrically connected circuit connections reduces wire joints,makes the device compact and durable. Sensors include LIDAR Sensor, Ultrasonic sensor, DHT11 Sensor. LIDAR sensor accurately senses 0.2m to 8m with 90% reflectivity. Coming to the battery and charging, we use the battery for the power supply, and it can be either charged directly with the port or charged using the solar panel. The Bluetooth module helps connect the Bluetooth headset with ATMEGA328p so that the user can also be notified with voice.
Visually Impaired people are in need of depending someone for doing their works. A cane type device helps them in navigating. But the cane type traditional device is not handy and difficult to use for them. The weight of the cane device is also high and makes uncomfortable for the user.
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