An Arduino Nano acts as the brains, a stepper motor drives the lead screw ... You can also adapt an existing motion control device like a CNC machine.

[DIY Builder] set up a NEMA 17 stepper motor with an appropriate 3D-printed gear to interface with the chain, allowing it to move the blinds accurately. The motor is controlled via an Arduino Nano ...

grbl is stepper motor controller ... for the normal drivers included on grbl Arduino shields (or integrated Arduino+drivers equivalents), and so I have been considering designing my own to link to ...