Save Big on Coursera Plus. 7,000+ courses at $160 off. Limited Time Only! Grab it Learn how to use the HC-SR04 ultrasonic sensor to measure distances to obstacles in this robotics training video. Explore the Elegoo Smart Car version 3.0 hardware and gain practical skills for obstacle avoidance. Dive into dimensional analysis, distance calculations, and coding techniques to effectively implement the sensor. Follow along with hands-on demonstrations and troubleshoot common conceptual errors. Acquire essential knowledge for advancing your robotics projects and building smarter autonomous systems.