Hello everyone, I am starting to control a servo actuator which has a small DC motor rather than the vacuum operated diaphragm, since the vacuum actuator is a discrete control system and the servo motor can be operated as a continuous control system. It is controlled by the PWM pins of an Arduino and 4 power transistors configured as an H Bridge controller. I am including the video I uploaded to youtube, the narrated language is in Spanish, but the description is in English. Hope this information help in some way or spark some new ideas.