One Stepper Driver for DRV8825/A4988 -OneStep Board

thingiverse

I upgraded my MultiPrint system by installing an additional stepper motor, which prompted me to design a custom board using my PCB software. I ordered the necessary components and began working on the new features. To begin with, I fused together the 5V and 12V input lines for added versatility. Next, I implemented pull-up resistors on both the enable and select lines to improve signal integrity. A LED indicator now lights up when power is applied, providing a visual confirmation of system status. In addition, I added a decoupling capacitor next to the driver IC to reduce electrical noise and ensure smooth operation. Finally, I incorporated a 2-pin terminal for connecting the 12V input source and ensured compatibility with Ramps systems via an IDC 10-pin connector.