Feature: 1. With the functions of overheating shutdown circuit, undervoltage lockout, and cross current protection, safe operation. 2. Adjustable potentiometer can adjust the current output, so as to obtain a higher step rate. 3. SMT placement machine manufacturing, non‑manual welding, higher yield rate, more stable performance. 4. The internal resistance of the chip is smaller, lower heat, and better heat dissipation. 5. 4‑layer PCB board, better heat dissipation performance, can be used to replace old or damaged stepstick stepper motor driver module. Specification: Item Type: StepStick Stepper Motor Driver Module Material: PCB Model: DRV8825 Drive Current: 2.5A Working Voltage: DC 8.2-45V Step Resolution Subdivision: Full step, half step, 1/4 step, 1/8 step, 1/16 step and 1/32 step Purpose: Drive stepper motor Applicable Scenarios: Suitable for driving stepper motors below 8.2V-45V 2.5A. Package List: 1 x StepStick Stepper Motor Driver Module1 x Heat Sink