{"product_id":"gravity-dc-micro-metal-gear-motor-with-driver-30-50-75-150-1","title":"Gravity: DC Micro Metal Gear Motor with Driver (30\/50\/75\/150:1)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eDC Micro Metal Gear Motor w\/Driver - 30:1, 50:1, 75:1, 150:1, integrates a compact brushed DC motor, metal gearbox, and onboard driver circuit into a single easy‑to‑control motion component for rapid prototyping. Traditional DC motors normally require an external H‑bridge and additional wiring before connection to development boards such as Arduino. This gravity‑interface geared actuator simplifies the process by embedding the control electronics directly inside the motor module. A single signal line enables bidirectional rotation and speed control, allowing robotics builders, automation prototypes, and educational projects to implement reliable motion control without designing a separate motor driver stage.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9c00;\"\u003e\u003cb\u003eNote: \u003c\/b\u003e\u003c\/span\u003eThe embedded control chip consumes a small portion of the input voltage, so the effective voltage delivered to the motor is slightly reduced. Motor speed may therefore be marginally lower than the rated motor speed.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSingle‑Signal Motor Control via Gravity Interface\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis gravity‑series actuator uses a standardized 3‑pin interface that combines power, ground, and signal lines for simplified wiring. Forward rotation, reverse rotation, and speed adjustment are controlled through PWM or PPM signals from a microcontroller. Such streamlined control removes the need for external H‑bridge modules or complex wiring, reducing setup time for robotics prototypes and motion experiments. Compatibility with common servo‑style signals enables immediate integration with many embedded controllers while maintaining the simplicity expected from plug‑and‑play Gravity ecosystem modules.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHybrid Behavior Between DC Motor and Continuous Servo\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis micro geared drive combines characteristics of a standard DC motor with continuous‑rotation servo control logic. Pulse width signals determine direction and rotational speed, enabling smooth forward or reverse movement with precise command ranges. An expanded stop pulse range improves neutral stability, preventing unintended movement during signal transitions. Such servo‑style control makes the compact gearbox motor particularly useful in robotics wheels, small mechanical actuators, and motion demonstrations where intuitive PWM control is preferred over raw voltage driving.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLow Standby Current for Efficient Embedded Systems\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eIntegrated driver electronics maintain extremely low standby consumption when no control signal is present. Static current remains below 1 mA without PWM input, reducing wasted energy in battery‑powered robots and portable embedded devices. This efficient operating profile allows the small metal gearmotor module to remain connected during idle periods without significant power drain, making the component suitable for long‑running automation projects, mobile robots, and compact smart mechanisms where power management matters.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E61006-content1.webp?v=1790543472\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cdiv id=\"Introduction\" class=\"content Introduction\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThis compact motion control module fits a wide range of robotics and educational builds, including mobile robot wheels, mechanical linkages, miniature automation systems, and interactive prototypes. Servo‑style PWM control and integrated driver electronics make the geared motor well suited for rapid experimentation in robotics labs, maker workshops, and STEM Education environments where reliable motion components accelerate prototype development.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Features\" class=\"content Features\"\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated driver circuit removes the need for an external H‑bridge motor controller\u003c\/li\u003e\n\u003cli\u003eGravity 3‑pin interface for quick plug‑and‑play wiring\u003c\/li\u003e\n\u003cli\u003ePWM\/PPM signal control enabling forward, reverse, and speed adjustment\u003c\/li\u003e\n\u003cli\u003eHybrid behavior combining DC motor power with continuous servo control logic\u003c\/li\u003e\n\u003cli\u003eExpanded stop pulse range for improved neutral stability\u003c\/li\u003e\n\u003cli\u003eLow standby current below 1mA when no control signal is present\u003c\/li\u003e\n\u003cli\u003eCompact metal gearbox suitable for robotics and embedded motion systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Applications\" class=\"content Applications\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eSmall mobile robots and robotic wheel drives\u003c\/li\u003e\n\u003cli\u003eEducational robotics and STEM Education experiments\u003c\/li\u003e\n\u003cli\u003eDIY automation mechanisms and moving prototypes\u003c\/li\u003e\n\u003cli\u003eInteractive installations and kinetic projects\u003c\/li\u003e\n\u003cli\u003eCompact actuator systems for embedded hardware builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification 30:1\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eOperating voltage: 3.5V - 8V\u003c\/li\u003e\n\u003cli\u003eReduction ratio: 30:1\u003c\/li\u003e\n\u003cli\u003eNo load current: 40mA@6V (approx)\u003c\/li\u003e\n\u003cli\u003eStatic current: \u0026lt; 1mA (no PWM control signal input)\u003c\/li\u003e\n\u003cli\u003eInterface: Gravity 3-Pin\u003c\/li\u003e\n\u003cli\u003ePPM signal resolution: 1us\u003c\/li\u003e\n\u003cli\u003ePPM signal pulse width range: 500us-2500us\u003c\/li\u003e\n\u003cli\u003eClockwise pulse width range: 500us-1400us (500us speed maximum)\u003c\/li\u003e\n\u003cli\u003eStop pulse width range: 1400us-1600us\u003c\/li\u003e\n\u003cli\u003eAnticlockwise pulse width range: 1600us-2500us (2500us speed maximum)\u003c\/li\u003e\n\u003cli\u003ePWM frequency: 500 Hz.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification 50:1\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eOperating voltage: 3.5V - 8V\u003c\/li\u003e\n\u003cli\u003eReduction ratio: 50:1\u003c\/li\u003e\n\u003cli\u003eNo load current: 40mA@6V (approx)\u003c\/li\u003e\n\u003cli\u003eStatic current: \u0026lt; 1mA (no PWM control signal input)\u003c\/li\u003e\n\u003cli\u003eInterface: Gravity 3-Pin\u003c\/li\u003e\n\u003cli\u003ePPM signal resolution: 1us\u003c\/li\u003e\n\u003cli\u003ePPM signal pulse width range: 500us-2500us\u003c\/li\u003e\n\u003cli\u003eClockwise pulse width range: 500us-1400us (500us speed maximum)\u003c\/li\u003e\n\u003cli\u003eStop pulse width range: 1400us-1600us\u003c\/li\u003e\n\u003cli\u003eAnticlockwise pulse width range: 1600us-2500us (2500us speed maximum)\u003c\/li\u003e\n\u003cli\u003ePWM frequency: 500 Hz.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Specification\" class=\"content Specification\"\u003e\n\u003ch2\u003eSpecification 75:1\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eOperating voltage: 3.5V - 8V\u003c\/li\u003e\n\u003cli\u003eReduction ratio: 75:1\u003c\/li\u003e\n\u003cli\u003eNo load current: 40mA@6V (approx)\u003c\/li\u003e\n\u003cli\u003eStatic current: \u0026lt; 1mA (no PWM control signal input)\u003c\/li\u003e\n\u003cli\u003eInterface: Gravity 3-Pin\u003c\/li\u003e\n\u003cli\u003ePPM signal resolution: 1us\u003c\/li\u003e\n\u003cli\u003ePPM signal pulse width range: 500us-2500us\u003c\/li\u003e\n\u003cli\u003eClockwise pulse width range: 500us-1300us (500us speed maximum)\u003c\/li\u003e\n\u003cli\u003eStop pulse width range: 1400us-1600us\u003c\/li\u003e\n\u003cli\u003eAnticlockwise pulse width range: 1700us-2500us (2500us speed maximum)\u003c\/li\u003e\n\u003cli\u003ePWM frequency: 500 Hz.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification 150:1\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cb\u003ePower Parameters\u003c\/b\u003e\u003c\/p\u003e\nOperating Voltage Range: 3V-6VRated Voltage: 6VNo-load Current: 50mA (under 6V)Static Current: ＜1mA (no PWM control signal input)Stall Current: 640mA\u003cbr\u003e\u003cb\u003eMotor Parameters\u003c\/b\u003eMotor Speed (Unreduced): 20,000 RPMGearbox Reduction Ratio: 150:1No-load Output Speed: 133 RPMStall Torque: 1.0 kg*cm\u003cbr\u003e\u003cb\u003eControl Parameters\u003c\/b\u003ePPM Signal Resolution: 1μsPPM Signal Positive Pulse Width Range: 500μs-2500μsForward Pulse Width Range: 500μs-1400μs (maximum speed at 500μs)Stop Pulse Width Range: 1400μs-1600μsReverse Pulse Width Range: 1600μs-2500μs (maximum speed at 2500μs)PWM Drive Frequency: 500 Hz\u003cbr\u003e\u003cb\u003eOther Parameters\u003c\/b\u003eWeight: 10gDimensions: L40mm × W12mm × H20mm\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eDimension (150:1)\u003c\/h2\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E61006-content2.webp?v=1790544449\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eRelated Documents\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/dfr0430\/\" target=\"_blank\"\u003eProduct Wiki 30:1\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/Arduinolibrary\/DFRobot_DC_Micro_Metal_Gear_Motor_with_Driver\/raw\/master\/Dimension.pdf\" target=\"_blank\"\u003eDimension 30:1\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/dfr0429\/\" target=\"_blank\"\u003eProduct Wiki 50:1\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/Arduinolibrary\/DFRobot_DC_Micro_Metal_Gear_Motor_with_Driver\/raw\/master\/Dimension.pdf\" target=\"_blank\"\u003eDimension 50:1\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/dfr0399\/\" target=\"_blank\"\u003eProduct Wiki 75:1\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/Arduinolibrary\/DFRobot_DC_Micro_Metal_Gear_Motor_with_Driver\/raw\/master\/Dimension.pdf\" target=\"_blank\"\u003eDimension 75:1\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/dfr1114\/\" target=\"_blank\"\u003eProduct Wiki 150:1\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Reduction ratio 30:1","offer_id":50537682763853,"sku":"E61006-001","price":17.22,"currency_code":"AUD","in_stock":true},{"title":"Reduction ratio 50:1","offer_id":50537682796621,"sku":"E61006-002","price":23.57,"currency_code":"AUD","in_stock":true},{"title":"Reduction ratio 75:1","offer_id":50537682829389,"sku":"E61006-003","price":23.57,"currency_code":"AUD","in_stock":true},{"title":"Reduction ratio 150:1","offer_id":50537682862157,"sku":"E61006-004","price":17.22,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E61006-win1.jpg?v=1790543503","url":"https:\/\/www.mlab.com.au\/products\/gravity-dc-micro-metal-gear-motor-with-driver-30-50-75-150-1","provider":"MLAB","version":"1.0","type":"link"}