"I am trying to do exaclty this. Have you come across a solution? I need to find the flight path angle aka gamma."

"The syntax is same as regular arduino code...Add hal.uartC->begin(baudrate) to void setup.
Use hal.uartC->println("hello")  or whatever you need to print out in the loop block. Don't connect the +5v pin, power is not needed (assuming that you are…"

"UartC is available on the apm 2.5. I connected an FTDI cable to the serial pins labeled uart2 and sent print statements on uartC."

"Hi Randy,
Arduplane SITL on vmware fails. 
I typed ./Tools/autotest/autotest.py build.ArduPlane fly.ArduPlane --viewerip=192.168.xxx.x
Builds ok but gives test failed for fly.ArduPlane and does not start Arduplane in SITL.
The same works totally…"