Need to control relays or respond to inputs through Hubitat without spending much money? This is my solution. I have written an App and driver for the DingTian Tech Relay/Input Board. And inexpensive board with a good integrated web server and Ethernet+Wifi connectivity.
This is great for people who want a reliable wired security system with a local processing and reliable wired (or wifi) connection to the inputs and relays. This is my first Hubitat App with child driver.