Two Trees A4988 Stepper Motor Driver for 3D Printer 5pcs - Green 5pcs

Relative to the 4988 features:
1.1. The maximum current is 2.5A.
1.2. Up to 32 subdivisions.
1.3. 4 layer PCB board, better heat dissipation performance.
1.4. The internal resistance of the chip is smaller, the heat is lower, and the heat dissipation is better.
2. Parameters:
2.2. Driveable current: 2.5A
2.3. Subdivision: 1, 1 / 2, 1 / 4, 1 / 8, 1 / 16, 1 / 32
2.4. Manufacturing process: SMT placement machine manufacturing, non-manual welding, higher yield, more stable performance.
3. Suitable for:
3.1. The need to drive the stepper motor.
3.2. 3D printer, cnc, engraving machine, etc.
3.3. Supported 3d printers are Prusa Mendel, ultimaker, printbot, makerbot and so on.
3.4. Can refer to the following Arduino code, directly drive the motor.
4. DRV8825 features the following:
4.1. Suitable for driving stepper motors below 8.2V - 45V 2.5A;
4.2. Only simple step and direction control interface;
4.3. Six different stepping modes: full, half, 1 / 4, 1 / 8, 1 / 16, 1 / 32;
4.4. The adjustable potentiometer can adjust the maximum current output to obtain a higher step rate;
4.5. Automatic current decay mode detection / selection;
4.6. Overheat shutdown circuit, undervoltage lockout, cross current protection;
4.7. Ground short circuit protection and load short circuit protection.