The Arduino source for this can be found on the project GitHub. Whilst [Frank] mentions that this assembly has a weight and torque advantage over a NEMA 17 sized stepper motor, but we see no hard ...

[Andreas] has created this tutorial ... an Arduino here on Hackaday. The rationale behind this is not often explained. [Andreas] connects a common low-cost 28BYJ-48 geared stepper motor with ...