I tried this instruction and the Wemo Dimmer Wi-Fi Light Switch did not get discovered. I tried to “Add Device Manually->SmartThings Labs” and the WeMo switch dimmer was not listed either. So, is it possible that this particular switch dimmer is not compatible with Smartthings?
From what it looks like – there isnt a way to do this just yet. This thread discusses the issue and might have some value in the future… Belkin WeMo Dimmer - SmartThings Labs
Awesome, thank you!
Try follow this tread. Wemo Dimmer Switch