It is done!
With the cabin pressure panel, the last segment has found its way to my homemade overhead panel. And with it my third self designed pcb. You can't imagine how happy I was the moment the seven segment displays lighted up.
This was also the first time I used rotary encoders on a panel. They worked really well and the configuration in MobiFlight and Prosim was very easy.
The only tricky part was the layout of the backlighting panel. You have to keep an eye on the components of the pcb to avoid any collisions with the LED strips or the cabeling. I managed this on my third try.
- 3mm transparent and white acrylic
- 3mm smoked acrylic
- 1 12 position rotary switch
- 2 rotary encoders
- 1 big (ON) - OFF - (ON) switch
- 1 servo motor
- 4 15 mm hex stand offs
- 4 30 mm hex stand offs
- 4 mm acrylic rod
- 1 switch cap
- LED stripes for backlighting mounted on a HDF plate
- 3mm HDF plate
- 10 seven segment displays
For the pcb:
- 1 pcb (see attached gerber files)
- 10 7-segment displays common cathode (7,5 x 14 mm)
- 2 MAX7219 ICs
- 2 10k resistors
- 2 0,1 µF capacitors
In the download file you will find all the needed files to cut out and engrave your own panel as well as the gerber files to create or order your own pcb and some additional documentations as well as the 3D files for the knobs and the spacers.