Trinamic Motion Control claims to be making the “smallest single-axis servo controller-driver module with integrated motion control”. TMCM-1321, as it is known, controls two-phase bipolar stepper motors and includes a magnetic encoder and digital inputs for an optical encoder. It is a 28 x 28mm module, although it needs more space than this because “it ...

This story continues at Board turns a stepper into a servo

Or just read more coverage at Electronics Weekly