Gadget Reboot
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Description
A4988 Based Stepper Controller with a 555 and manual run buttons/speed control
This PCB uses a 555 and a 4011 Nand IC to control an a4988 stepper driver module.
It takes 9-24 volts in and uses it for both motor and logic (on board 7805 regulator).
Intended for quick hook up of a stepper motor for any number of tests where the motor
just needs to be run forward or reverse at the push of a button to get it moving, with optional speed control and micro-stepping to 1/16 steps.
https://youtu.be/Ix-TT27lV14
https://github.com/GadgetReboot/StepperMover
May 02,2021
1,751 views
A4988 Based Stepper Controller with a 555 and manual run buttons/speed control
This PCB allows manual control of a stepper with a button for forward and reverse, and a speed adjust pot. Useful for quick prototype/test
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Published: May 02,2021
Download Gerber file 22
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