There is a standard for home automation with thousands of devices in the market. It&#x27;s called KNX. The problem is that setting up a KNX network is extremely technically involved, and the nice looking devices cost a lot of money. I looked into a smart doorbell for our new home. The KNX system cost nearly ten times what the ring video doorbell cost and required me to put in KNX wiring. So I got the ring doorbell, even though it&#x27;s a closed system.