DFROBOT Gravity DC Micro Metal Gear Motor with Driver, 75:1 Reduction

The DFROBOT Gravity DC Micro Metal Gear Motor with Driver is a compact and easy-to-operate geared motor system, perfectly designed for precise motion control in a wide range of projects. Combining the functionality of a DC motor with the positional control of a 360-degree servo, it offers exceptional versatility for makers, engineers, and educators. Its integrated driver and 3-pin Gravity interface simplify connections, allowing you to control direction and speed with a single PWM signal, eliminating the complexity of separate motor drivers.

This motor features a high 75:1 reduction ratio, providing substantial torque for its small size, making it ideal for applications requiring controlled, powerful movement from a compact power source. It operates within a 3.5-8V range, offering flexibility for various power supplies commonly used in embedded systems and hobbyist electronics. The driver chip manages all control logic, enabling straightforward implementation of forward and reverse motion with precise speed adjustment through Pulse Width Modulation (PWM).

Key Specifications & Performance

• Operating Voltage: 3.5 - 8V DC
• Reduction Ratio: 75:1
• No-Load Current: Approximately 40mA @ 6V
• Static Current: < 1mA (with no PWM control signal)
• PWM Frequency: 500Hz
• Control Signal: PPM with 1µs resolution
• Pulse Width Range: 500µs - 2500µs
  • Clockwise (Max Speed): 500µs - 1400µs
  • Stop: 1400µs - 1600µs
  • Anticlockwise (Max Speed): 1600µs - 2500µs

Please Note: The embedded control chip consumes a small amount of the input voltage, which will result in a slight reduction of the actual voltage and speed delivered to the motor. This compact unit measures just 43mm x 33mm x 15mm and weighs 19 grams, making it an excellent choice for space-constrained designs in robotics, automated mechanisms, and