Rather than having the host Pi communicate directly with the stepper drivers, the 3+Pi features an onboard STM32F302CBT6 that handles the actual motor control.

The Raspberry Pi stepper motor and DC bonnet supports all Raspberry Pi computers with a 2×20 connection port and you can even stack multiple motor bonnets enabling you to use up to 32 for ...

The new DC and Stepper Motor HAT for Raspberry Pi is now available to purchase for $22.50 and has been designed to allow makers to construct their robotic dreams.

Programming very complicated stepper movements then becomes just a matter of generating the right “audio” file and playing it out. [lhartmann] demonstrated this earlier with an Orange Pi.