Inspiration
There are an estimated 40 million people with blindness worldwide and 285 million visually impaired. Thier current methods of navigating their enviroments relies on active methods such as canes, or using the help of a human or animal assistant.
What it does
The device detects nearby obstacles and informs the user of thier presence using gentle and proportional vibration in the direction of the obstacles. When the user moves closer to the obstacles, the vibration in that direction wil increase, warning the user they will soon bump into it. This can be used to detect people, walls, other obstacles, and also the lack of such obstacles in each direction.
How we built it
The project uses HC-SR04 ultrasonic distance sesnors to detect nearby obstacles up to 3 meters. Then, this data is used to inform which vibration motors should vibrate and at what strength. It uses an Arduino Nano at its core, along with a 9V battery and a lm2940ct-5.0 LDO regulator.
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