All these stepper motor drivers are chopper drivers where you can set the amps that the driver will chop the current at. You don't have to run a stepper at max amps but anytime you reduce the amps you reduce the torque the motor puts out. 4226951053 You can see in the details it has a max current of 2.0amps. The link for the stepper motor didn't provide the max amps the motor is rated for so I googled the product number in the pic and found other sellers with more info like this 1. You need to choose a stepper motor that will provide enough torque for the job that you will be using it for See the 5x5x5 cube solving robot here there is 3 steppers to do the turning of the cube and 3 servos to open and shut the grabs You can just modify it a bit to suit your needs of only 1 stepper motor. stepper.py fro controlling stepper motors on my 5x5x5 cube solving robot. You will need a ramp up and ramp down on your stepper or you will skip steps. The same Nema 17 runs really nice on a DRV8825 but the large Nema 17 won't run on it and I use a TB6600 for it instead as it will handle much higher amps
I have Nema 17 here that use 1.2 amps and I have Nema 17 that use 2amps. It doesn't tell you the power, torque or needed amps to get this torque. Nema 17 is the size of the face with mounting holes to be a standard size for mounting. In the Data sheet they should handle up to 2.5amps but I find if I use the cheap DRV8825 getting around the absolute max they will run at is 1.5amps before they start to miss steps due to thermal shutdown and this is with a heat sink and fan. I find the "DRV885" you buy on ebay and aliexpress are clones and not the real Mccoy.
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