This is an "Obstacle-Avoidance Assistant" made with a LEGO EV3 robot, designed to help blind friends avoid obstacles in front of them and walk more safely.It has a "detection eye" (ultrasonic sensor) inside, which works like a bat, using sound waves to check if something is blocking the path. If it detects an obstacle (like a wall or chair).Unlike regular white canes, this little helper can detect dangers without touching them and even indicate if the obstacle is on the left or right.