After having learned how a stepper motor works and after having introduced the Polulu driver, based on Allegro’s A4988 IC, it’s now time to move the stepper with Arduino!
To test my sketches, I chose a stepper motor from my 3d printer, labeled 42BYGH4807 (here’s its datasheet):
I mounted the Pololu driver on a breadboard; I then connected motor and power supply following the schematics presented in the first part of this tutorial:
The driver is connected to Arduino, to which I added a LCD Keypad shield:
In the next page, I’ll explain how the sketch works…