It turns out that the Arduino serial port char buffer is only 500 bytes, so
message size has to be < 500 or else data is lost. This change bumps it down
to 128 bytes which should still be big enough. This also has a start on the
actual Bluetooth test code which is the purpose of all this.

Change-Id: I4144821b52800770f707fa3a15a8be16ac4d4146
2 files changed