I want to build a device whose primary function is a voltmeter without a display. Instead of having a display I want it to interface with a smart phone via bluetooth to read the voltage. Optionally I would like to be able to press a button on the phone and shut off the circuit for a couple of seconds and turn it back on, all while still sending the readings to the phone.
I need millivolt resolution with a range of ±5V
How could I go about doing this?
I'm a programmer that's pretty new to EE, so please dumb it down if you think I won't understand. Thanks!