Explore the efficient control of large DC gearmotors using Pulse Width Modulation (PWM) and Arduino in this 35-minute video tutorial. Learn about the inexpensive and powerful Cytron MD10C H-Bridge motor controller, capable of handling motors drawing up to 13 amperes continuous current. Discover how to connect and code the controller with Arduino, and witness its performance through practical demonstrations. Delve into the benefits of increasing PWM frequency for improved motor control efficiency. Follow along as the instructor tests the setup by moving a 10 Kg weight and presents an enhanced Arduino design for DC gearmotor control. Gain valuable insights into H-Bridge design, Arduino PWM sketches, and high-frequency PWM implementation to optimize your motor control projects.