AVR-Chat

> You could subtract the sequence number of the last packet of the last
> batch from the highest sequence number packet of the latest batch of
> received packets. The difference should agree with a counter for the
> packets received in this batch so far.

I think I follow you, but I don't see how this tells me wether I've
received all of them.
Not that I expect this, but say the last packet arrives first...
Or the middle packet arrives three times. (very possible)