My five cents:
You are not connected anymore with iPhone?
You can try:
- Bluetooth Off and On in Nexus 7
- delete the Data (and Cache) on the Nexus 7 WICED Sense app (not deleting the app, just data)
- remove battery and plug it back (a power cycle).
If WICED Sense was connected with another device (iPhone), it goes to sleep (we would assume it not connected anymore), it can wake up again and "think" it is still connected to iPhone (therefore reset/power cycle).
And: make sure battery is full (my was just a bit empty but weak enough not to connect anymore).
Solution: remove usb power cord, remove battery, re-insert battery.
Then it connected to my Android device and the gauges and dials worked.
Yes, already mentioned: my "best friend on trouble is - remove battery and plug in back".
I think: there is just a wakeup button, it is not a reset or restart. It brings the WICED Sense just back from deep sleep. If it was connected and you start a new session on smartphone, a different App - I think the WICED Sense comes back in "directed advertisement" mode. It will "think" the other peer is still there, it will not realize that connection is lost (BLE shuts down RF in between and would come back assuming the other peer will still listen again and continue to send Notifications to the same device as hours before).
Yes, battery off and on is the way to recover (most of the time).