I bought a Haydon LC1574W linear actuator for a small project I'm working on. I have an A4988 Pololu stepper motor driver, is it possible to control the Haydon linear actuator using this stepper motor driver?
So far I have connected the stepper driver as explained in this article: http://howtomechatronics.com/tutorials/arduino/how-to-control-stepper-motor-with-a4988-driver-and-arduino/ I used the arduino 5v and GND to power the board as well as motor power.
However when I measure the voltage at the 2B,2A,1A,1B pins of the stepper motor driver they seem to be constant at 5.5V without the motor attached. I would expect these outputs to alternate and not all be at 5.5v. Is this normal?