Compact design: This small brushless motor gear speed regulator test module is designed for DIY enthusiasts, providing a convenient way to detect and set virtual positions with ease. User friendly operation: An integrated knob enables manual speed regulation of the connected device without the need for a remote control, making quick adjustments straightforward in various applications. Wide voltage range: Supports input from 3V to 26V, compatible with a variety of power sources for both hobbyists and professionals. Easy connection: Built in step down circuit simplifies wiring, allowing direct connection to multiple battery configurations for hassle setup. Applications: Bench testing and tuning of brushless motor gear systems in RC models, robotics, or small automation projects. Prototyping and demonstrations in educational labs or workshops that require adjustable motor speed without external controllers. Quick adjustments in DIY builds where multiple battery configurations are used and wiring simplicity is valued.