A single board computer with TFT LCD screen for the ModAir project
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Status: very much early days... for now I am focusing on the sensors and hardware;
In the meantime, I would appreciate any suggestions on GUI frameworks that would simplify the development of graphical widgets, moving maps and synthetic vision (i.e. integration with open source elevation, terrain and map data). Android or Linux?
For South African airspaces, ATNS supplies a Google Earth KMZ file.
A bit of googling came up with the following open aeronautical charts:
I played around with the Qt 3D frameworks a bit... so far it looks very promising. Below is a screenshot of the 'Surface Example' which makes use of the Q3DSurface component.
The 'Textured Surface Example' demonstrates how to overlay a map onto the terrain.
Wondering what your thoughts are on the screen. I have seen quite a few of these but at the price I get the feeling it's going to 'work' but have terrible viewing angles,washed out colors, and just overall look bad.
While i'm not expecting the world from a <$30 screen however the screens on some of the cheap tablets for instance are basically unusuable.
Hi Justin, sorry I only saw your comment now. Besides a quick power-on when I received it, I haven't really used it much. It is definitely not sunlight readable, but the colors seem good enough for most purposes. When the ribbon cable is facing downwards, the viewing angles (relative to the perpendicular) are only around +20 and -30 degrees to the top/bottom, and about +70 to -70 degrees to the sides. I will send you some pictures.
PS: I have changed the screen listed under components. The one we are referring to is similar to this: https://www.aliexpress.com/item/7-inch-Raspberry-Pi-LCD-With-HDMI-VGA-AV-Screen-Display-Monitor-Module-For-Pcduino-Banana/32704148351.html. The part number printed on the metal at the back is "YX108070L15 SMT 141127".
Rene
Bharbour
John Basista
Adellar Irankunda
Thaddaeus
Hello, interesting project.
I suggest you to look at XcSoar Open source software dedicated for glider pilots:
* https://github.com/XCSoar/XCSoar
* https://www.xcsoar.org
It has already a lot of features you want to use (geographical and airspace data, moving chart, waypoints,flight data recording, hw communication software interfaces for GPS, logger, FLARM ...).
Mostly in C++
Version 7.28 from 10/2022 can be downloaded for Android, Windows, Linux and RBPI4b hardware.
Hope this helps or give you some good inspiration.