unit-test: looping back
experiment with sw reset
testing serialUSB
including Adafruit GPS lib
the 1st unit test for gps
porting Adafruit GPS lib
add xbee include dir
checksum utilities
testing checksum util
Merge branch 'test-checksum' into xbee_unit-test
fix the inclusion of Adafruit gps lib
accomodate the Adafruit gps lib inclusion fix
ignore built tmp-files
serial port access
creating communication packet
Merge branch 'packeting' into xbee_unit-test
Merge pull request #3 from tttor/unit-test_xbee

Unit test xbee.
Notice (e.g. when reading the commit log) that in the past the branch unit-test_xbee was named xbee_unit-test.
merging unit-test_gps
Merge branch 'merging_unit-test_gps'
There was a conflict in ./flymaple/MakeFile: for the line of including gps Adafruit lib.
fix after  merging unit-test_Xbee, the resolution for conflict in ./flymaple/MakeFile did not work previously