1. Introduction
The OSOYOO Model-X Motor Driver Module is an enhanced L298N-based dual full-bridge driver designed for controlling inductive loads such as DC motors, stepper motors, relays, and solenoids. It features improved wiring sockets for simplified assembly and enhanced connection stability, making it suitable for Arduino-based DIY smart car and robot projects.
This module accepts standard TTL logic levels and provides high voltage and current capabilities. It includes two enable inputs for independent device control and an external terminal for connecting a sensing resistor. An additional supply input allows the logic to operate at a lower voltage.
2. Features
- High Operating Voltage: Supports up to 40 volts.
- Large Output Current: Instantaneous peak current up to 3A, with a rated power of 25W.
- Dual H-Bridge Driver: Integrated high voltage, large current, full bridge driver capable of controlling DC motors, stepper motors, relay coils, and other inductive loads.
- Motor Compatibility: Able to drive two-phase or four-phase stepper motors, and two-phase DC motors.
- Logic Level Control: Utilizes standard logic level signals for control.
- Enhanced Reliability: Features a high-capacity filter capacitor and a freewheeling diode to protect components from reverse current damage from inductive loads.
- Integrated 5V Regulator: Can use the built-in 78M05 stabilivolt tube to derive 5V from the power supply. For drive voltages exceeding 12V, an external 5V logic supply is recommended to protect the onboard regulator.
- Voltage Specifications: Drive voltage range: 5-35V; Logic voltage: 5V.
- Compact Design: PCB size is 4.2 x 4.2 cm.
3. Product Overview
The OSOYOO Model-X Motor Driver Module is a compact board designed for robust motor control. Key components include the L298N integrated circuit, which acts as the dual H-bridge driver, mounted with a heatsink for thermal management. The board features clearly labeled terminals for power input (VD, 12V, GND, 5V), motor outputs (K1, K2, K3, K4), and logic control inputs (ENA, IN1, IN2, IN3, IN4, ENB).
Capacitors are present for filtering and stability, and a 78M05 voltage regulator is integrated for providing a 5V logic supply when the drive voltage is within acceptable limits. The improved wiring sockets are designed for secure and stable connections, reducing the risk of disconnections during operation.
4. Specifications
| Specification | Value |
|---|---|
| Manufacturer | OSOYOO |
| Part Number | 2017003700 |
| Item Weight | 0.634 ounces |
| Package Dimensions | 5.12 x 3.86 x 1.46 inches |
| Item Model Number | 2017003700 |
| Drive Voltage | 5V - 35V |
| Logic Voltage | 5V |
| Output Current (Peak) | 3A |
| Rated Power | 25W |
| PCB Size | 4.2 x 4.2 cm |
5. Setup Instructions
Follow these steps to properly set up your OSOYOO Model-X Motor Driver Module:
- Power Supply Connection:
- Connect your motor power supply (5V to 35V) to the VD and GND terminals. Ensure correct polarity.
- If your motor power supply is 12V or less, the onboard 78M05 regulator can provide 5V for the logic. Connect the 5V terminal to your microcontroller's 5V supply.
- If your motor power supply is greater than 12V, it is recommended to provide an external, regulated 5V logic supply to the 5V terminal to protect the onboard regulator. Do not connect the VD terminal to the 5V terminal in this scenario.
- Motor Connections:
- For a single DC motor, connect its terminals to K1 and K2.
- For a second DC motor, connect its terminals to K3 and K4.
- For a stepper motor, refer to its specific wiring diagram. Typically, a two-phase stepper motor will connect its two coils to K1/K2 and K3/K4 respectively.
- Logic Control Connections (to Microcontroller, e.g., Arduino):
- Connect the microcontroller's GND to the module's GND.
- Connect digital output pins from your microcontroller to the module's IN1, IN2, IN3, IN4 pins to control motor direction.
- Connect digital output pins from your microcontroller to the module's ENA and ENB pins to enable/disable motor drivers. These can also be connected to PWM pins for speed control.
- Initial Testing: Before connecting motors, verify power connections and logic signals with a multimeter to prevent damage.
6. Operating Instructions
The OSOYOO Model-X Motor Driver Module uses standard L298N control logic. Each H-bridge (Motor A: K1/K2, Motor B: K3/K4) is controlled by two input pins (IN1/IN2 for Motor A, IN3/IN4 for Motor B) and an enable pin (ENA for Motor A, ENB for Motor B).
6.1 DC Motor Control
To control a DC motor connected to K1/K2 (Motor A):
- Set ENA HIGH (or PWM for speed control).
- To drive forward: Set IN1 HIGH, IN2 LOW.
- To drive backward: Set IN1 LOW, IN2 HIGH.
- To stop (brake): Set IN1 HIGH, IN2 HIGH (short brake) or IN1 LOW, IN2 LOW (free-running stop).
- To disable: Set ENA LOW.
The same logic applies to Motor B using IN3, IN4, and ENB.
6.2 Stepper Motor Control
For a two-phase stepper motor, you will typically use a sequence of HIGH/LOW signals on IN1, IN2, IN3, IN4 to energize the coils in a specific order (e.g., full step, half step). ENA and ENB should be kept HIGH. Consult your stepper motor's datasheet or common L298N stepper control examples for the precise stepping sequence.
Example (simplified full-step sequence for a 4-wire bipolar stepper):
| Step | IN1 | IN2 | IN3 | IN4 |
|---|---|---|---|---|
| 1 | HIGH | LOW | HIGH | LOW |
| 2 | LOW | HIGH | HIGH | LOW |
| 3 | LOW | HIGH | LOW | HIGH |
| 4 | HIGH | LOW | LOW | HIGH |
Note: This is a basic example. Actual stepper motor control may require more complex sequences and timing.
7. Maintenance
The OSOYOO Model-X Motor Driver Module is designed for durability and requires minimal maintenance. Adhere to the following guidelines:
- Keep Clean: Ensure the module is free from dust, debris, and moisture. Use a soft, dry brush or compressed air for cleaning.
- Avoid Overheating: While the module has a heatsink, ensure adequate ventilation, especially when driving motors at high currents or voltages for extended periods.
- Secure Connections: Periodically check all wiring connections to ensure they are secure and free from corrosion. Loose connections can lead to intermittent operation or damage.
- Proper Storage: When not in use, store the module in an anti-static bag in a dry, cool environment to prevent electrostatic discharge (ESD) damage and moisture exposure.
- Voltage Compliance: Always operate the module within its specified voltage ranges (5-35V drive, 5V logic) to prevent component stress or failure.
8. Troubleshooting
If you encounter issues with your OSOYOO Model-X Motor Driver Module, consider the following troubleshooting steps:
- Motor Not Moving:
- Verify power supply connections (VD, GND) and ensure the voltage is within the 5-35V range.
- Check logic power supply (5V) connection.
- Ensure ENA and/or ENB pins are set to HIGH.
- Confirm IN1/IN2 (or IN3/IN4) signals are correctly toggling for direction.
- Check motor wiring for continuity and correct connection to K1/K2 or K3/K4.
- Test the motor directly with a power supply to ensure it is functional.
- Motor Moves Incorrectly or Weakly:
- Ensure the motor power supply can provide sufficient current for the motor.
- Check for loose connections or poor contact.
- If using PWM for speed control, verify the PWM signal is correctly generated and connected to ENA/ENB.
- For stepper motors, review the stepping sequence and timing in your code.
- Module Overheating:
- Reduce the load on the motors or decrease the motor supply voltage if possible.
- Ensure adequate airflow around the heatsink.
- Verify that the motor current does not exceed the module's 3A peak rating.
- No 5V Output from Onboard Regulator (if applicable):
- Ensure the main drive voltage (VD) is present and within the acceptable range for the 78M05 regulator (typically up to 12V for reliable 5V output without external supply).
- If VD is >12V, an external 5V logic supply is required as per specifications.
9. Support
For further assistance, technical documentation, or project examples, please visit the official OSOYOO website or contact OSOYOO customer support. You can find additional resources and community forums online for L298N-based motor drivers.
Official OSOYOO Store: OSOYOO Amazon Store
10. Warranty Information
OSOYOO products are designed and manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty information provided with your purchase or visit the official OSOYOO website. Typically, warranty covers manufacturing defects under normal use conditions.