Arduino Nano Stepper Motor Controllers

Single-ended stepper motor controller (not an H Bridge). This Board controls 5 lead stepper motors. It is the functional equivalent of a Nano with one or two (dual) of the small boards containing a ULN2003 and a JST connector, often sold with a small stepper motor. This board provides a single place to connect the whole project, including run/stop switch, 2 push buttons several status LEDs, JST connector, socket for the ULN2003, barrel jack and screw terminals for power and basic power conditioning. Earl Girbovan used this board for his ore unloader model shown at the 2022 PCR Convention.

The Stepper Motors often come as kits with the ULN2003 and this may be the least expensive way to purchase the ULN2003 and Motor) , search with "Stepper Motor with Driver" for the single option.

We also make dual stepper version of this board (using a ULN2803) that is essentially the same except it has a ULN2803 (8 lines) and can control two stepper motors, it has a second connector, set of status LEDs etc/

CAD Files, Schematic and Bill of Materials (single)

CAD File, Schematic and BOM (Dual)

Short Video of Earl Girbovan's Logging Reload using the dual stepper motor version

Demonstration Sketch (coming soon)

Assembly and Installation Instructions (coming soon)