This Variable Speed Controller is a PWMbased solution for precise control of DC motors. It accepts a DC power supply in the range of 9 to 60 V and can deliver up to 12 A, equating to about 500 W for a motor. The unit provides dimming through an adjustable duty cycle and offers adjustable frequency, all managed through a digital control interface. Key benefits Precise speed control: PWM technology enables smooth, repeatable control of motor speed for consistent performance. Broad compatibility with power sources: Designed to operate from 9 to 60 V, widening its applicability across different battery and DC supply setups. current capability: Supports up to 12 A continuous current, suitable for a wide range of mediumsized DC motors. Flexible speed tuning: Duty cycle adjustable for speed control and frequency adjustable to optimize motor response and noise. Digital control: The digital control aspect provides straightforward tuning and monitoring of performance parameters. Key attributes Functionality: PWM DC motor speed control with dimming (adjustable duty cycle) and adjustable frequency. Compatibility: Suitable for DC motors powered by 9–60 V and rated up to 12 A (approximately 500 W). Performance: Digital control with adjustable duty cycle and frequency to tailor motor behavior. Control interface: Digital operation for precise adjustment and monitoring. Use cases Hobby robotics and RC projects: Use the controller to vary wheel or actuator motor speed for precise maneuvering and testing without changing hardware. Smallscale automation or conveyors: Integrate with DC motors to adjust belt or axis speed in DIY automation setups or light production lines. Ventilation or pump applications in DIY builds: Modulate fan or pump speed to achieve desired airflow or flow rate from a single DC power source. Notes Voltage range: 9–60 V DC input. Current rating: Up to 12 A continuous. Power rating: Up to 500 W. Features: PWM speed control, dimming via duty cycle adjustment, frequency adjustment, and digital control.