https://www.mpja.com/Multifunctional...
Multifunctional Stepper motor driver & control board for 2phase 4wire and 4phase 5wire stepper motors.
Reverse Polarity protection, Over Current & Temperature protected.
Input: for Limit switches.
Voltage Range: 5V12VDC
Rated Current: 800mA
Step Rate: Jumper Select
Low Range: Each step takes 3.125 secondsthe fastest step takes 0.0625 seconds (16 steps/second).
High Range: each step requires 0.0625 seconds (16 steps/second)the fastest step is 0.00125S (800 steps/second).
4 operational Modes: Jumper Select
Normal 1: Start and Stop button (alternate Action), Forward and Reverse button (Alternate Action), Potentiometer controls speed Normal 2: Forward run button other button Reverse run. Press either button to stop. Potentiometer controls speed.
Jog: Press button to rotate forward, release to stop, Press other Button for reverse, release to stop, Potentiometer controls speed.
Auto: (Back & Forth) One Button Start and Stop, Other button Forward and Reverse, Potentiometer for speed, Second Potentiometer for automatic roundtrip steps. After starting, the motor will automatically run back and forth within the steps adjusted by the pot.
Connections: 0.1" Pitch Header Pins.