Distance, proximity and laser sensors

To detect an obstacle before bumping into it, to model the environment in 2D or 3D , to measure the distance of an element, these are all tasks that can be performed by distance sensors. Generally, in robotics, three technologies are used, often in complementary manner. This is infrared, ultrasound and laser. These 3 techniques are different in terms of cost, performance and efficiency according to the environment. Do not wait and go through the list of distance sensors available.