... well standalone UIM 24002 stepper motor driver0.5-2A settable output current.Miniature size 42.3mm*42.3mm*13.5mmIntegrally designed to ... , Max 2A adjustable output currentFull, half, quarter and 16th Micro-steppingDual H-bridge with PWM constant current control,Enable/shutdown controllableOpto ... convert milling machines to CNC control. 0-2 amps adjustable output current UIM24002 stepper motor driver