6-72V Digital Brushless DC Motor Driver with Forward and Reverse Control Overview A compact, high-performance controller for three-phase brushless DC motors. Designed for flexible power environments and real-time monitoring, this driver delivers up to 15 A continuous current while providing bidirectional control and a clear digital display for easy tuning and troubleshooting. Key benefits - Wide input range: Works with DC 6-72V power supplies so it fits a variety of battery and DC systems without extra conversion. - Strong continuous output: Up to 15 A continuous current handles moderate to heavy loads reliably. - Real-time monitoring: Digital display shows motor speed as a percentage (0-100%) and monitors voltage and current for faster debugging and setup. - Bidirectional control with braking: Forward and reverse control with start-stop brake inputs enables flexible motor direction changes and simple reversible operation. - Quiet, efficient operation: Three-phase brushless design minimizes noise and improves efficiency compared to brushed drivers. - Flexible speed control: Supports onboard potentiometer or external PWM control for precise speed adjustment to match application needs. What makes it stand out - Broad compatibility with many DC motor and battery voltages avoids the need for multiple controllers. - Built-in overload protection set to 15 A protects the system from sustained overcurrent. - Compact display module (32 mm by 21 mm) with a dedicated knob for intuitive control and monitoring during operation and testing. - External PWM support with a wide frequency range (1-10 kHz) and signal amplitude compatibility (3.3-5V) for integration with microcontrollers or other controllers. Typical applications - Model aircraft motor control where light weight, bidirectional capability, and wide input voltage compatibility are required. - Water pump systems powered by DC sources that need reliable continuous current and direction control. - Cooling fans or ventilation systems that benefit from silent brushless operation and precise speed adjustment. Specifications - Input voltage: DC 6-72V. - Maximum continuous current: 15 A. - Display readout: 0-100 percent (speed percentage). The display shows percent only and does not display actual RPM. - Motor type supported: Three-phase brushless DC motor. No Hall sensors supported. - Overload protection: 15 A. - External PWM support: Frequency 1-10 kHz, amplitude 3.3-5V. - Speed control method: Potentiometer (onboard) or external PWM. When using external PWM, separate the potentiometer signal line. - Display opening: 32 mm long by 21 mm high. - Forward and reverse start-stop brake signals: Active low. These are weak-current signals suitable for direct input to an MCU main controller. Important safety and installation notes - Observe polarity: connect positive and negative correctly. Use a DC supply within the motor nominal voltage range (for example, supply 12V for a 12V motor, 36V for a 36V motor). - Do not apply AC mains voltage; 220V AC or other AC sources must not be connected. - If using external PWM speed control, disconnect the potentiometer signal line to avoid signal conflicts. - Do not connect or disconnect cables while the power is on. - Braking creates heavy mechanical and electrical stress. Do not use braking at high speed and high current. When using the forward-reverse brake stop inputs, reduce speed to below 50 percent before braking is applied. - Avoid accidental contact with high-voltage or high-current wiring; the brake and direction inputs are low-voltage control signals only. - The digital percent display indicates only relative motor speed and does not equal the motor's actual RPM. Package contents - 1 x Motor controller. - 1 x Display panel. - 1 x Control knob. This driver is a practical, versatile solution for controlling three-phase brushless DC motors in model aircraft, pumps, fans, and similar applications where wide voltage compatibility, bidirectional control, and clear feedback are required.