Using "Positional Variance Based Distance Sensing Apparatus" for blind to navigate the surroundings safely

A positional variance based distance sensing apparatus has a physical marker that changes its position in accordance to the distance of an object from the sensor. This positional change can be used to sense the distance by touch and can be very helpful for the blind to navigate surroundings safely.

Categories: Arduino, Electronics, Engineering, Microcontrollers, Robotics, Science, Young Makers (Maker is under 18yo)