Hello all, I would really appreciate some help.

I currently have my Odroid XU4 connected to my pixhawk mini via a FTDI usb to serial converter (as per the tutorial found here: http://ardupilot.org/dev/docs/odroid-via-mavlink.html)

Basically, serial connection from telem port to a serial to USB converter to the Odroid.

In QGroundControl I also changed the SYS_COMPANION parameter to enable the TELEM port as the companion computer link and set the baud rate to 57600. I then saved and rebooted the pixhawk.

I then powered up my Odroid and plugged in the serial converter to a USB port.

Upon running:
sudo -s mavproxy.py --master=/dev/ttyUSB0 --baudrate 1500000 --aircraft MyCopter

i receive:

Connect /dev/ttyUSB0 source_system=255
no script MyCopter/logs/2012-12-31/flight2
Log Directory: MyCopter/logs/2012-12-31/flight2/flight.log
MAV> Waiting for heartbeat fro /dev/ttyUSB0
online system 1
MANUAL> Mode MANUAL
UZ2dAPM: data link #1 lost
APM: data link #1 regained
2_ROTfence breach
TC_G2_ID:Received 554 parametersX N6eRC_TH_USERENS_DPRES_ANSC i&3_0
Saved 555 parameters to MyCopter/logs/2012-12-31/flight2/nav.parm
MANUAL>

Obviously there are some bits of the output that are junk... these junk outputs vary each time i run the command. I do not understand why this happens.

I verify the connection by entering link and i receive
MANUAL> link 1 OK (1353 packets, 0.00s delay, 17 lost, 1.3% loss):

In a separate terminal I run the following script to connect to the pixhawk using Dronekit .

import dronekit
from dronekit import connect
connection_string = '/dev/ttyUSB0'
vehicle = connect(connection_string, wait_ready=True, baud=57600)

At which point in the terminal where i ran the mavproxy.py command I see a few random letters and numbers pop up randomly (happens after i run the connection script?). The terminal where I ran the connection script outputs:

Link timeout, no heartbeat in last 5 seconds
No heart beat in 30 seconds, aborting
Traceback (most recent call last):
File "connect.py", line 8, in
vehicle = connect(connection_string, wait_ready=True, baud=57600)
File "/usr/local/lib/python2.7/dist-packages/dronekit/init.py", line 2845, in connect
vehicle.initialize(rate=rate, heartbeat_timeout=heartbeat_timeout)
File "/usr/local/lib/python2.7/dist-packages/dronekit/init.py", line 2117, in initialize
raise APIException('Timeout in intializing connection.")
dronekit.APIException: Timeout in intializing connection.

I also tried running the quick start example on the dronekit website:

print "Start simulator (SITL)"
import dronekit_sitl
sitl = dronekit_sitl.start_default()
connection_string = sitl.connection_string()
from dronekit import connect, VehicleMode

print("Connecting to vehicle on: %s" % (connection_string,))
vehicle = connect(connection_string, wait_ready=True)

print "Get some vehicle attribute values:"
print " GPS: %s" % vehicle.gps_0
print " Battery: %s" % vehicle.battery
print " Last Heartbeat: %s" % vehicle.last_heartbeat
print " Is Armable?: %s" % vehicle.is_armable
print " System status: %s" % vehicle.system_status.state
print " Mode: %s" % vehicle.mode.name # settable
vehicle.close()
sitl.stop()
print("Completed")

to which I recieve the following error:

Starting copter simulator (SITL)
SITL already Downloaded and Extracted.
Ready to boot.
Traceback (most recent call last):
File "simple_goto.py", line 33, in
sitl = dronekit_sitl.start_default()
File "/usr/local/lib/python2.7/dist-packages/dronekit_sitl/init.py", line 341, in start_default
sitl.launch(sitl_args, await_ready=True, restart=True)
File "/usr/local/lib/python2.7/dist-packages/dronekit_sitl/init.py", line 271, in launch
p = Popen([self.path] + args, cwd=wd, shell=sys.platform == 'win32', stdout=PIPE, stderr=PIPE)
File "/usr/lib/python2.7/subprocess.py", line 710, in init
errread, errwrite)
File "/usr/lib/python2.7/subprocess.py", line 1327, in executechild
raise child_exception
OSError: [Errno 8] Exec format error

Can anyone help me understand these errors or perhaps share their experience in connecting the a pixhawk to the Odroid XU4? Anything would be greatly appreciated.. thank you!