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Avare
== Joysticks ==
You will find that controlling your [[aircraft]], with the official Raspberry Pi keyboard and mouse, too be rather difficult. A [[Input device|joystick ]] will solve this problem. The Logitech Extreme 3D PRO is plug and play, for the most part, with [[FlightGear]]. Most modern joysticks should also work. There is a dialog box to assign common joystick controls, in FlightGear. Controls are also properties, however that is for later. This joystick dialog box is found in the top menu bar under 'Files'. Next you will find 'Joystick Configuration' to click on and that will bring up the desired dialog box.
If the joystick’s travel is not being used efficiently or the neutral dead band is not right, the joystick can be calibrated. Install jstest-gtk through the Raspbian software installer or use the terminal and apt-get install command.
[[File:Jstest-gtk Joystick Calibration.jpg|thumb|Joystick calibration using jstest-gtk dialog box.]]
 <big>'''=== Saitek Saitek Pro Flight Quadrant'''</big>===
This throttle quadrant is now produced by Logitech and works with FG and the Raspberry Pi4. If used with a single engine aircraft or a multi engine aircraft where the engines are controlled with one stick on the quadrant, this will be a plug and play setup. However, there will be a noticeable dead band in the middle of the travel. Furthermore, it is possible that all the usable stick travel is not utilized. Both of these issues can be addressed by calibrating the quadrant as in the joystick example above. Below is the calibration data before calibration and below that is the data after calibration. Notice that the center dead band is removed.
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 <big>'''=== Thrustmaster Flight Rudder Pedals'''</big>===
There could be two adjustments needed for these rudder pedals. The toe brakes are reversed and delete the toe brake center dead band. Use the same method to delete the dead band as in the above throttle quadrant. Do not delete the dead band for the rudder unless that is what you want to do. Below is a calibration data example:
==Performance settings ==
==Interfacing==
Expanding the flight simulator system beyond the primary Raspberry Pi4, that is running FlightGear, is one way to increase the computing power of such a small computer.  ===Avare=== Avare is a free aviation app, with no ads, that works well with FlightGear. It is an app that is used by many pilots. It will provide a moving map of the FlightGear aircraft, using all FAA charts and a lot more. These charts are for the USA, however some of these FAA Charts cover Puerto Rico, plus parts of Canada, Mexico and the Caribbean. For other parts of the world, there are other apps that might work. Avare can be downloaded from Google Play Store. A tablet is a good choice for running this app.
FlightGear and Avare are easy to bind together. Along with the main Avare app, the I/O app will also need to be installed on the tablet. This app is ‘Avare External I/O Plugin’. The scheme is that the Raspberry Pi4 and FlightGear will become the GPS signal used by the Avare app, this position is transferred via WiFi. So, the tablets internal GPS needs to be OFF. Avare will always prompt you to turn ON the internal GPS, so when asked to ‘Turn On GPS’, choose ‘No’. In ‘Preferances’ the GPS position source can and should be set to ‘Avare IO Module Only’, however the prompt to turn ON the internal GPS will still pop up when starting the app.
After FlightGear has started with the above command, open the Avare External I/O Plugin app. Choose the Xplane option and then tap on ‘Listen’. There should be lines of communication being displayed after ‘Listen’ is enabled. Leave this running and now open the main Avare app. Do not choose to use the internal GPS. Now your FlightGear aircraft placement should be displayed on the FAA map of choice.
 
===Phi & 7" Touch Screen===
 
[[File:Avare.jpg|thumb|Avare connected to the Raspberry Pi4 and FlightGear. Avare is a moving aviation chart app.]]
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