In TQS the ANT is just a conventional pot, require 3 wires +5V, Gnd, signal.

The Range pot is double stacked pot - 2 pots in one axis - I think for overcome gameport limitations, for have a center position - dont see why use then in USB circuit, think that will need some experimentation. Maybe the two are wired in serie in one axis, dont remember...

The mini joy in TQS - a kind of IBM laptop like mouse - is a different device, is a transducer that work (bad) under pressure.

Don't know if this device are wired in TQS in analog of digital inputs or how wire in MMJoy2.
Maybe is better replace then with a analog mini-stick (PS2 like, as in Cougar) or with conventional HAT (what I did in one TQS).

This thing work bad, erratic in F16/F22 HOTAS and are abandoned in Cougar.

The others connections are one HAT (COMM) and some press or toggle switches, just require buttons inputs, and as they are few can be wired with diode matrix (row x columns), e.g. 2x5.



I know that MMjoy2 can handle LED's but with games exported values, e.g. War thunder, for example to replicate in game landing gear light status, not for light when some switch are turned ON. F16 or TQS have LED?

I can't help with this "3 led pin"...

Look at this led/switchs usage (page anterior).

http://s19.postimg.org/yhqb106rn/mmjoy2_Pro_Micro_Gear_Switch_Bi_LED_schem.png

BTW - Communication between F16 and TQS.

If place the MMJOy2 inside TQS will be required for F16
+5V
Gnd
X input
Y input
4 other TLE501x inputs - can be shared between 2 axis.
3 inputs for Shift Register, besides the shared +5V, Gnd
Total of 11 wires.

If MMJoy2 is placed on F16:
+5v
Gnd
Throttle input
Range input
Ant input
X in mini-stick if used
Y in mini-stick if used
10 buttons - 2 x 5 matrix = 7 wires
Total 14 wires

or if not used mini-stick but HAT - 3x5 matrix = 8 wires
Total 13 wires