Steper driver dual axis camera motion controller

Project to make a motion capture dolly for video footage.  Originally designed for timelapse motion, it is also suitable for automatic motion in live recording (interview backshot etc).

Processor is a Heltec Wifi32 Kit. Driver boads are drv 8825.

Dual axis control by stepper motor (1 for linear motion, 1 for rotary stage) Control is via roboremo App on phone.

Control philosophy is to set start and end points and a time.  Camera motion then runs, interpolating between the two points.