DRV8886 from Mikroe with Arduino Mega

Hello,

I would like to know if this drive called "STEPPER 6 CLICK" from Mikroe : (Stepper 6 click | MikroElektronika) is basically the same than the Pololu driver called DRV8886 (Pololu - DRV8825 Stepper Motor Driver Carrier, High Current) since they both have the DRV8886 from Texas Instrument...

I want to know that because I ordered the one from Mikroe first, but i dont see any tutorial with arduino using this driver... Also there is no potentiometer to set the Vref value...

I'm trying to drive a Stepper motor (2amp) with a Mega.

Thanks for your help.