We like to share some projects we find are particularly different. this Customer used a Firgelli Heavy Duty Industrial Linear Actuator (https://www.firgelliauto.com/collecti...) and then along with a proximity sensor purchased from our Robotics website (https://www.FirgelliRobots.com) this allows the artwork to open up automatically when someone approaches it. The Proximity sensor is a very simple system, we simply use it to control a Relay that simply turns the Linear Actuator on.
(https://www.firgellirobots.com/pages/sensors
