The invention is related to window blind automation and provides a removable device for blind control and automation. The invention is also related to a method for blind control and automation. The device is attached to window blinds headrail with magnets, hooks or other means and the tilter or the cords are put inside the mechanism. The device has a hole where the adaptor is inserted. There are different types of small adaptors for different types of tilters. There is a light sensor for ambient light which might be hidden under semi-transparent plastic or be visible on the enclosure. In the lower part of the drawing the version for vertical blinds is shown. At the side of the verticals there is a metal shaft and the device connects to it with a gear wheel. For verticals, the device is attached to the side of the headrail.