Ok. I re-did arming_state_transition to be more obvious as to the various state transitions as well as fixing the STANDBY_ERROR problem. I'd like to update and run the state_machine unit tests but I can't seem to get into nsh on osx. Website says 'screen /dev/... 57600 8N1', then hit enter three times to get shell to show up. I can't make that happen. I see mavlink stuff fly by, but I can't get it to go to the shell. Anybody have any ideas? Also not sure if baud rate should be 115200 since that is how you connect with QGC. Tried that as well.