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| 参数分类 Category | 项目 Item | 规格详情 Specification |
|---|---|---|
| Basic Parameters | Module Model | 42 Stepper Motor Driver Base Board A4988_DRV8825 (Motor Not Included)(A064) |
| Basic Parameters | PCB Dimension | 42.00mm × 42.00mm |
| Basic Parameters | Compatible Driver Sub-board | Direct plug-in compatible with A4988, DRV8825 stepper motor driver modules |
| Basic Parameters | Applicable Motor | 42-type 2-phase 4-wire stepper motor (NEMA17) |
| Basic Parameters | Main Power Input | DC 12V-24V, powered via green DCIN terminal block |
| Basic Parameters | Microstep Setting | Configured via DIP switches MS1/MS2/MS3, supports 1/2/4/8/16/32 microstepping. Maximum microstep is determined by driver IC |
| Basic Parameters | Control Signal Standard | STEP Pulse / DIR Direction / EN Enable, compatible with Arduino, STM32, PLC and other controllers |
| Basic Parameters | Product Weight | Bare PCB: approx. 12g; assembled with terminal blocks: approx. 18g, batch tolerance ±1g |
| Interface Definition - DCIN | DC Power Input, "+" for positive pole, "-" for negative pole | Main operating power supply for motor. Strictly avoid reverse connection; reverse polarity will burn the driver IC |
| Interface Definition - A1/A2/B1/B2 | Motor winding interface, connect to windings of 2-phase 4-wire 42 stepper motor | Corresponds to phase A and phase B windings of motor. Swapping two wires of the same phase can reverse motor rotation direction |
| Interface Definition - DIR/STP/EN | Control signals: Direction, Pulse, Enable pins | Connect to main controller IO port. DIR controls rotation direction, STP sends pulse, EN enables/disables output, plug-and-play |
| Interface Definition - VCC/GND | Power supply for control circuit, typical 5V, supplies voltage matching main controller IO level | Power for drive logic circuit; common ground with main controller is required to stabilize control signal level |
| Interface Definition - MS1/MS2/MS3 | Microstep adjustment DIP switch pins | Connect external DIP switch. Switch microstep gears via high/low level combination to adjust stepping precision |
| Key Feature - Dual Driver Compatibility | Universal base board, A4988 & DRV8825 modules can be directly plugged and replaced without hardware rewiring | Pin-compatible for both drivers, interchangeable by plugging, to meet different current and microstepping requirements |
| Key Feature - Full Pinout Interfaces | Motor terminals, power supply, control signals and microstep DIP switches are all led out externally for intuitive wiring | All interfaces arranged on board edge with neat routing, convenient for external wiring, inspection and troubleshooting |
| Key Feature - Hardware DIP Microstepping | Switch microstep gears directly via DIP switch, no need to modify control program for quick positioning precision adjustment | Adjust parameters via physical switches without rewriting codes, quickly adapt to motion scenarios with different precision requirements |
| Key Feature | Power Isolation Design | High-voltage motor power supply and low-voltage control power supply are separated independently to suppress motor start/stop interference for more stable system operation |
| Key Feature | Four Corner Mounting Holes | PCB reserved mounting holes, can be fixed onto equipment frame or engraving machine housing with screws |
| Packaging Solution | Optional Packages | ① Anti-static soft bag ② White card hanging hole box ③ Kraft paper box |
