Can this be used as a driveway chime as well?

Hello, The stand-alone Ring Motion Sensor lets you monitor for motion in areas where you don’t need a light, doorbell, or camera and is battery-powered for easy no-wiring installation. The Ring Bridge connects to the Ring App using your home wifi network and connects to other Ring Smart Lighting products using a proprietary long-range communication protocol. Without the Ring Bridge, your motion sensor functions only as a standard device. With a Bridge, you can control whole groups of lights and sensors at once and be notified via the Ring app when any light or Motion Sensor senses movement. In addition, you can use your Ring App to create Groups of Smart Lights and Ring cameras that work together to enhance security. For example, if you’re subscribed to Ring Protect, your Ring Doorbell can begin recording video as soon as motion is detected by your Motion Sensor. This provides footage that captures motion events earlier. All the best, Ring Team