Amazon.com: ELEGOO UNO R3 Project Smart Robot Car Kit V4 with UNO R3, Line Tracking Module, Ultrasonic Sensor, IR Remote Control etc. Intelligent and Educational Toy Robotic Kit for Arduino Learner :
How to make an Obstacle Avoiding Robot using Ultrasonic Sensor & Arduino - STEMpedia
Obstacle avoiding robot using Arduino- Two sensor | Obstacle avoiding car
OSOYOO Robot car kit Lesson 5: Obstacle Avoidance Robot Car « osoyoo.com
Arduino Ultrasonic sensor car - Robotics - Arduino Forum
Autonomous Arduino Car Maze Solving | RobotShop Community
Obstacle Avoiding Robot using Arduino and Ultrasonic Sensor | Arduino, Arduino projects, Arduino robot