- Why you need this module - Reliable, interference-free motor control for projects that use microcontroller IO ports. - Drives two DC motors at up to 7 A, giving enough current capacity for medium to high-power small-vehicle, robotics, or automation applications. - Built-in protection and input isolation reduce the risk of module damage and simplify wiring and system integration. - Key benefits and what makes it stand out - L298 with gates: provides familiar L298-style control logic to achieve comparable motor-control behavior and compatibility with existing control schemes. - Optocoupler-isolated inputs: input lines are optically isolated so the module can be driven directly from microcontroller IO ports without introducing electrical noise or ground-loop interference to the controller. - Dual H-bridge design: two independent H-bridges allow simultaneous control of two motors (forward/reverse and speed control via PWM). - High current capability: specified to 7 A, suitable for motors that require significant startup or stall current. - Undervoltage protection: prevents immediate high-current events that could burn the module by detecting undervoltage conditions and protecting the driver. - Function and compatibility - Function: dual H-bridge motor driver based on the L298 control approach, with optocoupler input isolation and undervoltage protection. - Control interface: designed to be driven directly from standard IO ports on microcontrollers and single-board computers (digital direction inputs plus PWM for speed). - Compatibility: integrates with typical microcontroller development boards and motor control software that expect an L298-style interface; suitable for DC brushed motors driven in H-bridge configuration. - Performance and safety - Continuous/peak current handling up to 7 A as stated; capable of handling high inrush and load currents common in motor starts. - Isolation reduces risk of noise coupling into the controller, improving signal integrity and reducing troubleshooting. - Undervoltage protection helps avoid destructive overcurrent and thermal stress on the module. - Physical and specification notes - Module-format motor driver using the L298 control approach with optocoupler inputs and dual H-bridges; consult the product specifications for exact dimensions, mounting options, and materials. - Electrical and thermal management requirements (wiring, heat sinking, supply decoupling) should be followed per the product datasheet to ensure rated performance. - Typical applications 1. Mobile robots and small electric vehicles: drive two wheel motors with independent speed and direction control while protecting the control electronics from motor-generated noise. 2. Automation and conveyor prototypes: control paired DC motors for positioning, conveyor belts, or paired actuator systems where reliable isolation and protection are needed. 3. Educational and development boards: use with microcontroller-based teaching platforms to demonstrate H-bridge motor control, PWM speed control, and protection features without extra isolation circuitry. - What to check before use - Ensure your motor current requirements are within the 7 A capability (check stall and startup currents). - Review the module’s electrical wiring, supply voltage limits, and recommended heat-sinking in the product documentation. - Verify logic-level compatibility with your controller IO and follow proper grounding and isolation practices as documented.