Gadget Reboot

CANADA • + Follow

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QATAR
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Description

Dual Stepper A4988 Driver with OLED Display and Rotary Encoder Menu

This PCB has headers to plug in an Arduino Pro Micro (5 volt version) and one or two A4988 microstepping driver modules.

There is a 128x64 OLED display and a clickable rotary encoder for optional software menu options to run the system in various modes, eg. normal run mode for a given project, test mode for each motor etc.

There are 6 headers with +5v, GND, and a Pro Micro GPIO, allowing external sensors/switches or any other IO device to be connected, such as limit switches or sensors to tell software when a motor has reached a certain position.

The project is detailed on Github https://github.com/GadgetReboot/GR_StepperIO

There is also a Youtube video showing how to use this PCB to make a paper circle cutting machine:

https://youtu.be/IpUJtn2fGRE

Code

https://github.com/GadgetReboot/GR_StepperIO

Schematic and Layout

https://github.com/GadgetReboot/GR_StepperIO

Download Gerbers Download BOM(Bill of materials)

May 09,2020

4,156 views

Dual Stepper A4988 Driver with OLED Display and Rotary Encoder Menu

Easy prototyping with stepper motors using an Arduino Pro Micro and two A4988 microstepping driver modules on this PCB with an OLED display

4156

3.75 (1)

Published: May 09,2020

Standard PCB

Download Gerber file 54

BOM(Bill of materials)

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File Last Updated: 2025/05/28 (GMT+8)

File update record

2025-05-2814:54:34

Parts List (BOM) is updated.

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