General description The DC 5-30V CNC Stepper Motor Controller is an adjustable control module designed for Nema42/57 stepper motors. It features a high-definition LCD display for easy parameter reading and setting, along with a power failure memory function to retain settings during power outages. This controller allows for precise motor control with various functions, including angle, speed, direction, and delay time adjustments. Technical specifications Operating voltage: 5-30V Micro-stepping resolution: up to 1/128 Built-in 9 fixed operating modes: forward rotation, reverse rotation, delay, cycle, etc. Measurement allowed error: +/- 1-3cm Compatibility and accessories Compatible with Nema42/57 stepper motors Package includes: 1 x controller, 1 x plug wire Usage Change motor rotation direction with a button press Select operating modes: automatic or manual Set parameters using external buttons and rotary encoders Menu settings include cycle number, motor turn, delay time, number of