APM 2. 5 Software
The first thing you need to do is download and install
the latest Mission Planner. You can get it at http://code.
The one I downloaded was the MissionPlanner-
1.2.33.msi. This one contains the ArduCopter 2. 9.1
firmware. If you have an older version of the Mission
Planner software, I recommend you uninstall it and install
the 1.2.33 directly. I tried the built-in upgrade and it failed
on all of my machines.
the map as shown in
APM 2. 5
Go to the
Configuration tab at the
top of the screen and
select the ArduCopter
Level tab on the left side.
This will bring up an
additional screen that will
allow you to select a + or
X configuration. Select
the X configuration if it
is not already selected.
Connecting to APM 2. 5
Connect the ArduPilot to your PC with the included
USB cable. This will create a new COM port on your
machine. Go to the device manager and look in the Ports
section. Mine was called Arduino Mega 2500 (COM7).
Write down this port name. Note: You don't need to plug
your battery into your craft.
Start the Mission Planner software. In the upper
righthand corner of the Mission Planner, select the COM
port that was installed when you plugged your APM into
the USB on your computer. It should default to 115200
speed. You may be able to select the Auto option, as well.
If you have other COM ports on your machine, this option
can be problematic. Hit the Connect button.
The Mission Planner will go through some modules,
and eventually connect to your APM 2. 5. You may or may
not see telemetry data in the Flight Data tab. It all depends
on your firmware status. At this point, you can disconnect
from your APM by hitting the Disconnect button.
Next, you need to upload the latest firmware to the
APM. To do this, select the Firmware Tab on the Mission
Planner. Click on the ArduCopter V2.9.1 Quad and start the
download/update process. This will load the very latest
quadcopter firmware into your APM.
Once the firmware has been updated into your
APM, go back and hit the Connect button again. Once
connected, you should see data in the Head Up display;
if you have a GPS lock, you should see your location on
42 SERVO 04.2013
If you have not bound your transmitter to your receiver,
you need to do it now. While still in the Configuration tab,
select the Radio Calibration side tab. With your radio turned
on, refer to Table 1 and make sure each transmitter channel
is moving the bars on the calibration screen in the correct
direction. If they are not, you will need to reverse them on
Once you are satisfied the directions are correct, hit the
Calibration button and follow the on-screen instructions.
Channel Radio Description
Left = Roll Low
Right = Roll High
Up = Pitch Low
Down = Pitch High
Down = Throttle Low Up = Throttle High
Right = Yaw High
Radio 5 -
CW = Radio 6 High
Radio 7 -
CW = Radio 8 High
Left = Yaw Low
Radio 5 -
CCW = Radio 6 Low
Radio 7 -
CCW = Radio 8 Low