First, I developed a way to trigger my garage door to open and close in Hubitat. Since I have a Chamberlain MyQ Garage Door opener (with security feature), I used a spare garage remote control with a Zigbee relay setup as a device in Hubitat (see this post for details). So from Hubitat I can set the Zigbee relay switch to "on" which triggers the garage door remote control (note, the Zigbee relay is configured to be a momentary switch, so it turns on then off after 2 seconds).
I then install the "Maker API" app in Hubitat and added the Zigbee relay device as one of the allowed endpoint devices. From the Maker API app page you will see instructions on how to control the endpoint devices by sending an http statement to your Hubitat Hub (either by a local WiFi connection or through the cloud). For example, the http statement below will trigger my Zigbee Relay to turn on:
http://192.168.50.80/apps/api/370/devices/574/on?access_token=(my specific token password)
So, my Hubitat Hub is connected to the local IP address of 192.168.50.80 and my Zigbee Relay device is number 574. You now need a way to send this http statement to your WiFi router so it will trigger Zigbee Relay device on.
There's a few different ways of sending this http statement on my Galaxy Watch 4, but I chose to use the app called Macrodroid. This app is loaded on my Samsung S21 phone and it has a companion app for the Galaxy 4 watch. So, I created some scripts in Macrodroid that will send the http statement request if I select an option on my watch. That's how I can trigger the garage door to open or close from my watch. Hope that helps.
