I can interface an arduino to the PCA9685 to control x number of servo motors using I2C
is there an equivalent way to interface to multiple A4988 stepper driver boards?
usage is to control a stepper to move a model railway point so only 1 or maybe 2 at the same time steppers are linear ones e.g.
so even with driver board are cheaper than a servo and probably easier to hide / interface with the point than the small servo's
any help appreciated as I'm on a steep learning curve with electronics