A linear actuator configured for a ventilation damper. This project tutorial provides the 3D printed parts and assembly instruction. It is designed to work with a Node MCU (ESP8266) and a 28BYJ-48 Stepper Motor with a ULN2003 Driver. These electronic parts are widely available for under $10. The device uses fishydIYdevice software avilable on github to allow voice controlled, or local, wifi web controlled, operation of whatever you have the linear actuator connected to.