Elegoo Smart Robot Car Part 3 - Collision Avoidance & Line Following - YouTube
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 :
Osoyoo V2.1 Robot Car Lesson 6: Use WIFI to control an IoT Robot Car « osoyoo.com