Features Equipped with start-stop button and external switch control to meet various customer control requirements. Engine soft start function. When the motor starts, the current increases slowly and there is no inrush current, which can effectively protect the motor and extend the service life. The duty cycle, upper and lower duty cycle and operating frequency can be adjusted so that the customer can operate and use their engine according to their operating characteristics. The digital encoder knob adjusts the motor speed, which is more accurate and smooth than traditional potentiometers. With standard instrument housing 5135 for customer installation. Specification: Item Type:Motor Controller Working voltage: DC5V ~ 30V, input reverse protection Rated current: 5A, maximum current 15A Maximum power: 150W Working frequency: 1KHz ~ 99KHz adjustable, 1KHz steps, standard frequency 20KHz, accuracy about 1% Duty cycle: 0-100%, 1% step Product size: 79 x 43 x 26 mm/3.11 x 1.69 x 1.02 inch All adjustable parameters are switched off. Package list: 1 x Module Note: Digital encoder button operationIn the standard interface: (standard display-duty cycle)Short press - switch start and stop of the motorLong press - enter the setting interfaceCounterclockwise rotation - duty cycle reductionRotate clockwise - duty cycle increase On the settings screen: Short press – select set parameters and switch between lower limit of duty cycle, upper limit of duty cycle and work. The lower limit of the duty cycle is displayed as “L” + two digits. The upper limit of the duty cycle is displayed as “H” + two digits or “100”. The display frequency of the working frequency is “F” + two digits. Long press – exit settings interface. Turn counterclockwise - reduce the corresponding settings. Rotate clockwise – adjust the parameter to increase accordingly. Post-STOP connection: The open button or 3.3V level can be connected externally. When the key is closed or the 3.3V level is lowered, the start/stop state of the engine is switched. Package List 1 x Module