Oh, I'll try and provide a schematic for this at some point. But, it's really very simple if you've done a few Arduino projects. I used a 220? resister for the LED and a 33? resistor for the piezoelectric speaker, which has 16? resistance to begin with. Everything else is wired directly to a pin, ground, or 5v. The 2S LiPo battery is of course wired to Vin and ground and the balance port is used to measure the voltage of one cell (don't monitor the 2S balance port, as it's >= 7.4v and will probably fry your Arduino, monitor the 1S balance port which never goes beyond 5v).
Now go punish, I mean train those little dogs to poop where they should!
Tim