[Ancient] has a video showing off a fascinating piece of work: a lip-syncing robot whose animated electro-mechanical mouth works like an IBM Selectric typewriter. The mouth rapidly flips between ...

Arduino library support for STMicroelectronics PowerSTEP01 stepper driver chip with voltage and current mode drive. This library is a modification of Megunolink powerSTEP01_Arduino_Library which is a ...

Microcontrollers may dominate today’s stepper motor projects, but there’s a certain charm in driving them with pure CMOS logic. This no-firmware approach strips things down to the fundamentals of ...