This is such a ludicrous premise, I'm amazed you pulled it off.
You mention "another packing optimization". I'm wondering, how are you transferring frames? The dot matrix is eight 7x5 characters, i.e. 280 bits in total, which amounts to 40 7-bit groups per frame. You seem to be using twice that space in transmission, is it wasted on some control data or is the transmission just slightly suboptimal?
You mention "another packing optimization". I'm wondering, how are you transferring frames? The dot matrix is eight 7x5 characters, i.e. 280 bits in total, which amounts to 40 7-bit groups per frame. You seem to be using twice that space in transmission, is it wasted on some control data or is the transmission just slightly suboptimal?