I got it kind of working by editing the device to put the mac in the device ID. However, the only place I see any response to opening/closing the sensor is by opening the device in the SmartThings API and viewing “list events.” The report changes each time I pull the device pin high or low, but the reported state (open, closed) in the app is unchanged. Here’s what I see in “list events”:
2016-02-22 5:51:59.834 AM UTC moments ago DEVICE index 05, mac Sensor 8266 index is 05, mac
It cycles from 05, mac to 06, mac as the state of the sensor changes. But again, the reported state (open, closed) never changes.