Delete unused pressure-to-altitude function (reduces MCU code size by ~1Kb)
Remove dependency on Adafruit_Sensor subclass (reduces size by 352 bytes)
Define a binary packet data structure (not being sent via USB yet)
Remove floating point arithmetic from BMP sensor functions.
Rescale integer air temperature measurement before saving in db.
First implementation of binary packet protocol.
Streamline packet header detection (acquires first packet sooner).
Unpack binary packet and re-enable storing of values in the database.
Increase baud rate of USB serial link from 9600 to 115200 (12x speedup).