Hi!
I was able to do it and use Shelly as a normal switch (on/off).
- go to this ide page and sign in: https://graph.api.smartthings.com/
- choose your location
- go to the My device handler
- go to +Create a new Device Handler
- Choose from Code
- copy this Device Handler from this page (from the raw): https://github.com/dgasparri/SmartThingsPublic/blob/master/devicetypes/shelly/shelly2.src/shelly-as-switch.groovy
- Push Create
- Push Publish/For Me
- Go to My device/New device
- Give it a name and id (whatever you want)
- As Type choose the Shelly as switch (probably last one)
- Select Location/Hub
- Push Create
- After that you chose Edit in the Preferences section (define the IP of the given Shelly device -> you can find it in the Shelly app at Settings/Device information, you should give a fix ip in your router to the Shelly, and choose channel 0 in case you have Shelly1).
- That’s it, after that you can see the device in you Smartthin app and click on/off