Alert notifications

[kamocat]

I'd like to get Android phone notifications for any of the following:

• Sensor stops sending data (Indicates battery died)
• Sensor data out of range (Indicates an issue with the environment, which is probably why you're measuring in the first place)
• Sensor data is missing typical noise or has excess noise (Indicates wiring issue or sensor failure)

There should be a script to determine these parameters given a specified time range of baseline data.