MMJoy LED controller is not for illuminate switch's, but for game output, eg monitor if landing gear is down, and depend on game output (so will work in some, not in others).

To use LED on you project, due limitation on USB cable amperage the ideal wold by use a independent power source for LED's, so the illuminated LED's can be always on (and toggled off if desired), and for toggle switchs if you use DPDT (duple circuit switch) switchs, one pole send the command for game, other turn on/off the LED.

You can use potentiometers in you project, there's not wrong with then - IF are good quality ones (what joysticks manufactures rarely use, so the potentiometers joystick "bad" fame).

CONS - Good potentiometers will cost more than DIY HALL sensors assembly* (look at Bourns, Spectrol, Alps... prices).

Probable you dont find for buy potentiometers with 60 degrees turn range used in joysticks (are custom made for joystick manufactures), most of you find is 270 degrees, this limit axis theoretical resolution because if you dont turn the potentiometer the expected 270 degrees you dont varies the voltage from 0 to 5 volts.

You can use gears to turn more the pot', but this make the assembly complicated and induce backslash.

Potentiometers wear with use and start cause spikes (The "high end" - at time - Cougar or G-940 can tell the history).

HALL (of similar sensor) advantages is his low cost cost* and easiness for use the axis full resolution (or varies from 0 to 5 volts).

CONS - Difficult to set the middle position relative to magnets due the his low size, making DIY assembly trickly.

* Low cost for sensor only - HALL sensor assembled like potentiometer, e.g. the ones used in automotive industry is expensive (~80$).







Last edited by Sokol1; 03/02/15 05:08 PM.