1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of the GODIYMODULES DC 5V ULN2003 Stepper Motor Driver Board, designed for use with the 28BYJ48 stepper motor and controlled via an infrared remote. Please read this manual thoroughly before use to ensure proper functionality and safety.
2. Product Overview
2.1 Components Included
- 1 x 28BYJ48 Stepper Motor
- 1 x ULN2003 Stepper Motor Driver Board
- 1 x Infrared Remote Control
- 1 x Connection Cable for Motor
2.2 Driver Board Layout
The ULN2003 driver board features several key components and interfaces as illustrated below:
Image 2.2.1: ULN2003 Stepper Motor Driver Board with labeled components. Key features include the Power Switch, DC 5V Power Input, Stepper Motor Interface, Infrared Receiver, Reserved Interface, and Motor Operation Indicators (LEDs).
- Power Switch (K1): Controls the power supply to the board.
- DC 5V Power Input: Connects to a 5V DC power source.
- Stepper Motor Interface: 5-pin connector for the 28BYJ48 stepper motor.
- Infrared Receiver (U2): Receives signals from the infrared remote control.
- Reserved Interface: Additional pins (3.3V, TX, RX, GND, IN, OUT, GND) for advanced applications or debugging.
- Motor Operation Indicators (LED1, LED2, R2, R3, R4, R5): LEDs that indicate motor activity and status.
2.3 28BYJ48 Stepper Motor
The 28BYJ48 is a common 5V unipolar stepper motor, often used in DIY projects due to its simplicity and availability. It features a 5-wire connection.
Image 2.3.1: 28BYJ48 Stepper Motor with its 5-wire connection cable.
3. Setup Instructions
- Connect the Stepper Motor: Plug the 5-wire cable of the 28BYJ48 stepper motor into the 5-pin stepper motor interface on the ULN2003 driver board. Ensure the connector is fully seated and correctly oriented.
- Connect Power: Connect a DC 5V power supply to the DC 5V Power Input jack on the driver board.
- Insert Remote Control Battery: The infrared remote control requires a CR1220 battery (not included). Open the battery compartment on the back of the remote and insert the battery with the correct polarity.
- Power On: Flip the Power Switch (K1) on the driver board to the 'ON' position. The motor operation indicators (LEDs) may light up briefly.
Image 3.1.1: Infrared Remote Control. Note that a CR1220 battery is required and not included with the product.
4. Operating Instructions
The stepper motor driver board is controlled using the provided infrared remote control. There are 11 distinct operating modes, plus pause and start functions.
Image 4.1.1: Detailed description of the 11 operating modes and control functions available via the infrared remote.
4.1 Remote Control Functions and Modes
| Button | Mode/Function | Description |
|---|---|---|
| CH- | Mode 1 | Forward rotation, random delay of 3-15 seconds, then reverse rotation, random delay of 3-15 seconds, infinite loop. |
| CH+ | Mode 2 | Forward rotation, random delay of 10-30 seconds, then reverse rotation, random delay of 10-30 seconds, infinite loop. |
| - | Mode 3 | Forward rotation, random delay of 3-15 seconds, infinite loop. |
| + | Mode 4 | Forward rotation, random delay of 10-30 seconds, infinite loop. |
| 100+ | Mode 5 | Forward rotation, random delay of 30-50 seconds, infinite loop. |
| 200+ | Mode 6 | Forward rotation, random delay of 50-99 seconds, infinite loop. |
| PREV (<<) | Mode 7 | Switch the current mode forward (e.g., from 1 to 2). |
| NEXT (>>) | Mode 8 | Switch the current mode reverse (e.g., from 2 to 1). |
| 0 | Mode 9 | Always rotate forward, no delay time. |
| 1-9 (Number Buttons) | Mode 10 | After the motor rotates one full circle, the delay is 1-9 seconds (corresponding to the number pressed), infinite loop. |
| CH | Mode 11 | Forward 5 turns, reverse 1 turn, random delay of 5-12 seconds, infinite loop. |
| PLAY/PAUSE (DII) | Pause | Pauses the current motor operation. |
| EQ | Start | Initiates or resumes motor operation. |
5. Specifications
| Parameter | Value |
|---|---|
| Working Voltage | DC 5V |
| Working Current (Stationary) | Less than 15mA |
| Working Current (Operating) | Less than 250mA |
| Operation Mode | Infrared Remote Control |
| Number of Working Modes | Up to 11 modes |
| Drive Motor Type | DC 5V 4-phase 5-wire stepping motor (28BYJ48) |
| Remote Control Battery | CR1220 (not included) |
6. Maintenance
- Cleaning: Keep the driver board and motor free from dust and debris. Use a soft, dry cloth for cleaning. Avoid using liquids or solvents.
- Power Supply: Always use a stable DC 5V power supply. Incorrect voltage can damage the components.
- Storage: Store the product in a dry environment, away from extreme temperatures and direct sunlight.
- Battery Replacement: Replace the CR1220 battery in the remote control when its range or responsiveness decreases. Ensure correct polarity during replacement.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor does not move. | No power or incorrect power supply. Motor not connected correctly. Remote control battery low or missing. |
Ensure DC 5V power is connected and the power switch is ON. Verify motor cable connection. Replace CR1220 battery in remote. |
| Motor moves erratically or vibrates. | Loose motor connection. Insufficient power supply current. |
Check motor cable connection. Ensure power supply can provide at least 250mA. |
| Remote control not responding. | Remote control battery low or dead. Infrared receiver blocked. Remote control too far from receiver. |
Replace CR1220 battery. Ensure no obstructions between remote and receiver. Operate remote within close range of the board. |
| Motor gets hot during operation. | Prolonged operation at high load. Incorrect wiring (less likely with provided cable). |
Allow the motor to cool down. Ensure the motor is not overloaded. Verify wiring if custom connections are made. |
8. Warranty and Support
Specific warranty information for this product is not provided in the available documentation. For support or warranty inquiries, please contact your retailer or the manufacturer, GODIYMODULES, directly through their official channels.
For further assistance, you may refer to the product page on Amazon: Product Link