> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Big Easy Driver

**Type:** Product page · **SKU:** ROB-12859 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/big-easy-driver-11779.html ([markdown](https://core-electronics.com.au/big-easy-driver-11779.html.md))

The Big Easy Driver, designed by Brian Schmalz, is a stepper motor driver board for bi-polar stepper motors up to a max 2A/phase. It is based on the Allegro A4988 stepper driver chip. It’s the next version of the popular Easy Driver board.

## Pricing

- **Price:** $35.60 (inc GST) — $32.36 AUD, exc GST
- **Quantity discounts:** 5+ $31.39 (exc GST) · 25+ $30.75 (exc GST) · 100+ $29.45 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 31 and Sep 04.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ROB-12859:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ROB-12859:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The Big Easy Driver, designed by Brian Schmalz, is a stepper motor driver board for bi-polar stepper motors up to a max 2A/phase. It is based on the Allegro A4988 stepper driver chip. It’s the next version of the popular Easy Driver board.

Each Big Easy Driver can drive up to a max of 2A per phase of a bi-polar stepper motor. It is a chopper microstepping driver which defaults to 16 step microstepping mode. It can take a maximum motor drive voltage of around 30V, and includes on-board 5V/3.3V regulation, so only one supply is necessary. Although this board should be able to run most systems without active cooling while operating at 1.4-1.7A/phase, a [heatsink](https://core-electronics.com.au/search/?q=11510) is required for loads approaching 2A/phase, check the recommended essentials for a suitable heatsink.

Note: This product is a collaboration with Brian Schmalz. A portion of each sales goes back to him for product support and continued development.

Features:

- Bi-polar Microstepping Driver
- 2A/Phase Max
- 1.4-1.7A/Phase w/o Heatsink
- Max Motor Drive Voltage: 30V
- On-board 5V/3.3V Regulation
 
Documents:

- [Schematic](https://core-electronics.com.au/attachments/localcontent/BigEasyDriver_v16_107426bb8ed.pdf)
- [Eagle Files](https://core-electronics.com.au/attachments/localcontent/BigEasyDriver_v16_20280379eb6.zip)
- [Hookup Guide](https://learn.sparkfun.com/tutorials/big-easy-driver-hookup-guide)
- [Datasheet](https://core-electronics.com.au/attachments/localcontent/A4988-Datasheet_391630cd512.pdf) (A4988)
- Design Site
- [GitHub](https://github.com/sparkfun/Big_Easy_Driver/tree/Hw-v1.6_Fw-v1.0)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/r/o/rob-12859.jpg)