Going graphical was a logical step between my original text-based flight monitor and the final touch screen version. Here’s the result on a 480×320 TFT display, powered by an esp8266 based Wemos D1 R2. It shows spotted airplanes over the displayed area, updating their positions every 5 seconds.
The suddenly appearing fourth airplane obviously just switched on its transponder while standing on the runway of Eindhoven Airport, that’s why it doesn’t move.
Military airplanes will appear in a different color and I’m considering the use of different icons for helicopters, gliders, air balloons and UFOs…
The refresh of the airplane icons isn’t as fast as I had hoped for, especially if there are many (can’t do them one at the time because they can overlap). This HX8357D driven Adafruit 3.5″ display is great, but not exactly fast. Let’s hope someone optimizes the library one day. Anyway, I’m still quite satisfied with the overall result so far.
See also: the final touch screen version of this project. Clicking a plane temporarily shows its flight details in a popup text area.