This is a simple DC brushed motor speed controller with bidirectional capability and knob-based speed adjustment. It is designed for DC power supplies and is suitable for small motors. Key benefits - Reverses motor direction for forward and reverse operation, enabling flexible control without extra components. - Easy knob adjustment to change power and thus vary the brushed motor speed. - Simple, straightforward design that is easy to install and operate with a DC power supply. Specifications - Operating voltage: DC 6 to 28 V - Maximum continuous output current: 3 A - Maximum output power: 80 W - Compatible with DC brushed motors and standard DC power sources Design notes - Simple and user-friendly, focused on reliable, direct motor speed control. - Maintains a compact form suitable for integration into hobby projects and small machinery. Use cases - Robotics and hobby projects: drive a small robot or vehicle with adjustable speed and easy forward/reverse control. - Small mechanical systems: power a winch, conveyor, or actuator where speed control and direction reversal are beneficial. - Educational demonstrations: teach concepts of motor control, speed variation, and bidirectional operation using a single controller.