A modified version of the Cessna 172 Skyhawk electrical panel which also includes a multi position switch that I use for flaps and an extra switch for something like parking brake.

I tried a version of the panel with embossed text but it turned out less than ideal so I scrapped that idea. Decals are definitely the way to go but I couldn't find anyone in Europe to make them for me.

The electronics are built around a Pro Micro running MobiFlight.

In retrospect, if I were to build another of these I would use a Pi Pico and write my own firmware. While MobiFlight works great for flight sims, it only works with flight sims and it only supports Arduino boards which are woefully outdated and overpriced these days.

I would also use different toggle switches since the LED on the ones listed below is connected in series with the switch and is causing enough voltage drop to prevent the Arduino from detecting the change on the input pins.

Parts used (not affiliate links, feel free to replace with whatever you like and find in stock):

• Bolts: M3x40mm counter sunk: https://www.amazon.de/-/en/Countersunk-Screws-Hexagon-Socket-Pack/dp/B07YZM98J3/
• Nuts: M3 threaded inserts: https://www.amazon.de/-/en/KITCHEN-Original-Threaded-Insert-Version/dp/B09FXNX6WF/
• Pro Micro: https://www.amazon.de/-/en/ATmega32U4-Developer-Powerful-Reliable-Motherboard/dp/B0CP8TTLYX/
• Toggle switches: https://www.amazon.de/gp/product/B0776QXX21/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1
• Rocker switches: https://www.amazon.de/gp/product/B0743BMMGG/ref=ppx_yo_dt_b_asin_title_o00_s02?ie=UTF8&psc=1
• Multi position switch: https://www.amazon.de/-/en/gp/product/B07878F91D/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
• USB Type-C connector: https://www.amazon.de/gp/product/B07Y3BBYVG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Sources, including assembly view, can be found here.