I have an Actuonix PQ12-P linear actuator that i want to control with my Arduino.
It is sent all of the way out by applying voltage over 2 of its pins, and retracted by reversing the polarity. its position can be monitored through the actuators' potentiometer but i do not need position feedback.
How can I switch the polarity from a power supply using an arduino to make it go back and forth? i'm not really sure where to start.
the actuator in question: http://www.robotshop.com/uk/firgelli-technologies-pq12-actuator-20mm-63-1-12v-potentiometer.html