Big Easy Driver
We have ✅ 1 available of the SF-ROB-12859 in our Sydney warehouse. An extra 248 units available with a short lead time.
The Big Easy Driver is a stepper motor driver board for bipolar stepper motors up to 2 A per phase, based on the Allegro A4988 driver chip. Designed by Brian Schmalz, it's the successor to the popular Easy Driver board.
It defaults to 16-step microstepping mode and includes onboard 5 V and 3.3 V voltage regulators, so only a single motor supply is needed. Accepts motor drive voltages up to 30 V.
Specifications
- Driver Chip – Allegro A4988
- Max Current – 2 A/phase
- Without Heatsink – 1.4–1.7 A/phase
- Max Motor Voltage – 30 V
- Microstepping – Up to 1/16 step (default)
- Onboard Regulation – 5 V and 3.3 V
- Motor Type – Bipolar stepper
Key Features
- Single Supply – Onboard regulators eliminate need for separate logic power
- Chopper Driver – Efficient current regulation
- Configurable Microstepping – Full, half, quarter, eighth, and sixteenth step
Ideal For
- CNC machines and 3D printers
- Camera sliders and pan/tilt systems
- Robotics and automation
- Any project requiring precise stepper motor control
Note: A heatsink is recommended for loads approaching 2 A/phase. The board operates at 1.4–1.7 A/phase without active cooling.
Resources
The Big Easy Driver appears in the following collections:
SKU SF-ROB-12859
by SparkFun
