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
Dual Stepper A4988 Driver with OLED Display and Rotary Encoder Menu
*PCBWay community is a shared platform and we are not responsible for any design issues.
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- Engineer Apr 17,2022
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