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TACAN Panel

F-14B Tomcat TACAN Panel

TACAN Panel for DCS F-14B Tomcat. Built with Arduino compatible microcontroller board Pro Micro, use with Flightpanel DCS-BIOS fork.

Parts

  • 5V/16MHz Pro Micro Board w/ ATmega32U4
  • 2 5mm LED for BIT result (GO/NO GO lights)
  • 2 toggle switches for operation mode and channel (X/Y)
  • 1 push button for BIT
  • 2 potentiometer for channel selector tens and VOL
  • 1 rotary switch(12 pos) for channel selector ones

Design

TACAN

The TACAN panel size will be:

  • width: 5.75 (146.1mm)
  • height: 2.625 (66.68mm)

Panel Design

I design the panel using FreeCAD. It consists of three layers. The bottom and middle layers are composed and 3D printed as a single object.

The top layer is either 3D printed then covered with a labels(legends) layer, or cut and engraved with a laser engraver.

Note the hole diameters are determined by looking at switches, buttons and encoders I have. They are likely to not fit for others.

Panel CAD

Pro Micro PINs Usage

Pro Micro has 18 digital PINs, 9 of which can also be used as analog inputs. This TACAN control panel will have about 20 Joystick buttons and 2 axes as inputs.

  • TACAN Mode Selector and Channel Rotary Switches: use a single analog PIN for each switch.
PIN TACAN Function Button/Switch Joystick Button/Axis Note
0/RX1 BIT Push Button 0 BTN0
1/TX0 Mode Switch On-Off Toggle Switch 0 BTN1, BTN2
2 X/Y Freq Selector On-Off Toggle Switch 1 BTN3, BTN4
A0 Function Selector Rotary Switch 0 BTN5-BTN9 5 Pos, voltage divider
A1 Freq Selector Tens Potentiometer 0 BTN10, BTN11 BTNs for Rotate CW/CCW
A2 Freq Selector Ones Rotary Switch 1 BTN12, BTN13 BTNs for Rotate CW/CCW
A3 Vol Potentiometer 1 Axis0/X, BTN14, BTN15 BTNs for Rotate CW/CCW
A9 CRS Potentiometer 2 Axis1/Y, BTN16, BTN17 Extended, not on panel
10 TACAN CMD Push Button 1 BTN18 Extended, not on panel
15 BIT GO LED LED Green DCS BIOS Output
16 BIT NO GO LED LED Yellow DCS BIOS Output
7 CMD Light PLT LED LED Green DCS BIOS Output, extended, not on panel
8 CMD Light NFO LED LED Green DCS BIOS Output, extended, not on panel

Arduino Libraries

License

Available under MIT license.