DFRobot Gravity: Haptic Motor Driver for LRA Motors

The DFRobot Gravity: Haptic Motor Driver for LRA Motors is a compact and easy-to-use module designed to generate precise and rich haptic feedback in electronic projects. Built around the TM6605 haptic driver chip, it allows developers to control Linear Resonant Actuator (LRA) motors through a simple I2C interface, making integration fast and hassle-free. The module supports a wide operating voltage range of 3.7V to 5.2V, ensuring compatibility with common development boards. With 44 built-in vibration effects and automatic resonance tracking, the driver intelligently adapts to the connected LRA motor, delivering stable and optimized vibration performance without complex tuning. The Gravity connector further simplifies wiring, making it suitable for rapid prototyping and educational use. This haptic driver is ideal for adding tactile feedback to human-machine interfaces, interactive devices, and control systems where smooth and responsive vibration feedback is required. Wiring Diagram of Gravity: Haptic Motor Driver and Arduino Features: Designed specifically for LRA (Linear Resonant Actuator) motors Powered by the TM6605 haptic motor driver chip Supports 44 built-in vibration effects Automatic resonance tracking for optimal motor performance Uses Gravity I2C interface for easy connectivity Wide operating voltage range: 3.7V–5.2V Compact PCB suitable for embedded applications Plug-and-play design for rapid prototyping Applications: Immersive Game Controllers: Add realistic rumble and feedback for actions, impacts, and in-game events. Interactive Robotics: Provide tangible confirmation for robot actions, button presses, and user interactions. Responsive UI/UX: Create satisfying tactile 'clicks' and alerts for touchscreens, custom control panels, and physical buttons. VR/AR Haptics: Enhance virtual experiences with physical feedback gloves or controllers. Notification Systems: Develop silent, wearable alert devices that use distinct vibration patterns for different notifications. Package Includes: 1 x DFRobot Gravity: Haptic Motor Driver for LRA Motors1 x Gravity 4pin sensor cable1 x LRA motor

Specifications

Operating Voltage	3.7V to 5.2V DC
Communication Interface	I2C (Gravity)
Driver IC	TM6605
Supported Motor Frequency	140Hz–220Hz (LRA)
Built-in Effects	44 vibration patterns
Item Type:	Motor Driver
Model No. / Name:	Value: Gravity Haptic Motor Driver for LRA Motors
Compatibility:	LRA (Linear Resonant Actuator) Motors
Operating Voltage (VDC):	3.7 to 5
No. of Channels:	01
No. of Controllable Motors	1
Interface:	Gravity I2C
Operating Temperature (°C):	-40°C ~ +85°C
Length (mm):	30
Width (mm):	20
Weight (g):	05
Shipping Weight	0.07 kg
Shipping Dimensions	7 × 5 × 3 cm