The modular design includes plug in stepper drivers and extruder control electronics on an Arduino-compatible MEGA shield for easy service,part replacement,upgrade-ability and expansion.
It will be a lot of fun while you are creating and learning Mega 2560 R3,so just get this and start it,after all,time matters,the sooner you can improve your programing skills , the sooner you can create amazing projects.
A4988 includes a fixed off-time current regulator,the regulator in slow or mixed decay modes.
A4988 converter is the key to the easy implementation,as long as the “step” input inputting one pulse drives the motor one microstep.
1x Iduino Mega R3
1x Assembled RAMPS 1.4 extend Shield
5x A4988 driver
RAMPS 1.4 is designed to fit the entire electronics needed for a RepRap in one small package for low cost