Current design uses 2 NEMA 17 stepper motors but is generalizable to 1 stepper or many more steppers. You can add more steppers as long as you have appropriate power supply. Here are the materials you ...

I2c-without-library I2C Communication with 1602A LCD and Stepper Motor Control - Arduino Uno This project demonstrates how to establish I2C communication between an Arduino Uno and a 1602A LCD display ...