A4988 Stepper Driver
A4988 bipolar stepper motor driver (STEP/DIR). Pulse STEP to advance one step; DIR sets the direction; MS1-MS3 select microstepping. Outputs 1A/1B (coil A) and 2A/2B (coil B) to a stepper’s A+/A-/B+/B- terminals.
| Pin | Signals |
|---|---|
| ENABLE | — |
| MS1 | — |
| MS2 | — |
| MS3 | — |
| RESET | — |
| SLEEP | — |
| STEP | — |
| DIR | — |
| VMOT | — |
| GND | — |
| 2B | — |
| 2A | — |
| 1A | — |
| 1B | — |
| VDD | — |
| GND.2 | — |
Use it
Section titled “Use it”Add it from the component picker — search for “A4988 Stepper Driver” (tags: a4988, stepper, driver, motor, step). Right-click it on the canvas for the in-editor datasheet, and check the examples gallery for circuits that use it.