EBB Driver Board

EiBotBoard v.2.3 USB Motor Controller
In stock
$50.00
Quantity discounts:
5+ units:   $46.25 each
10+ units:   $42.50 each
50+ units:   $38.75 each
100+ units:   $35.00 each

The EiBotBoard ("EBB") is a USB-based dual stepper motor controller board that is useful for many general purpose robotics applications. Originally designed for the EggBot project, it is the "brain" of all current models of the EggBot, but also of the AxiDraw and WaterColorBot as well.

The EBB was designed by Brian Schmalz of Schmalz Haus LLC. It is an open source (in both hardware and software), PIC18F46J50-based motor controller board. Standard features include two Allegro A4983 16X microstepping motor drivers for bipolar steppers. It also has a separate onboard regulator to power up to two servo motors. It is 2.2 x 2.2 inches square (5.6 x 5.6 cm). Works well with our 9 V 1.5 A power supply. Documentation about EBB boards is available at schmalzhaus.com.

We are currently shipping version 2.3 of the EBB, which features several improvements for reliability.

Note that the EBB may either be white with black silkscreen or red with white silkscreen.

Additional specifications:

  • Motor driver ICs: Two Allegro A4983
  • Stepper motor type: Bipolar (2)
  • Step size: Full, 1/2, 1/4, 1/8, 1/16
  • Motor connectors: Screw terminal
  • USB jack type: Mini-B
  • Power connector: Barrel Jack, 2.1 x 5.5 mm, center positive
  • Voltage input range: 9 - 25 V DC
  • Output current adjustment: 46mA to 1.25A per phase


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