Tx to USB interface

[Robbydog]

I want a little box that has a socket in it that I can plug a buddy cord into from my Hitec Flash 5. This box will have a lead coming out of it that will plug into one of my USB ports. This will enable me to use my Tx to control my flight sim–X-plane on Mac, OS9.

Any one able to help with a circuit diagram?

Please...

Rob.

[Bruce Abbott]

I don't know of any free circuits. There are basically two ways to do it:-

Couple an R/C-to-Joystick circuit to a standard USB joystick port.

Program a USB-enabled MPU to translate the R/C signal directly into USB joystick protocol.

Here's a couple of commercial units:-

RC-Electronics (http://www.rc-electronics.co.uk/usb.htm)

Custom Electronics (http://www.customelectronics.co.uk/uindex.htm)

This one appears to use a PIC16C745 (http://www.microchip.com/1010/pline/picmicro/category/perictrl/14kbytes/devices/16c745/index.htm).

[jeffs555]

If you wanted to do your own, here is an an app note for the cypress single chip usb controller/processor. You would just have to change the routines that read the pots to read the PPM signal from the buddy port. National also has a usb chip that needs an external processor, but they have C source code for a joystick that you could probably modify to work with a pic or other processor you are familiar with.

Jeff

http://www.cypress.com/support/reference_designs.cfm?objectID=0E919D7F-D7AE-4C7A-AB9058979E7972E6&tid=54A040FA-2262-424A-B14741267CBD1308

[Robbydog]

Thanks for your help guys.

Rob.

[clipclop]

Just found this thread , Heres a link to homemade joystick interfaces :-
http://myweb.absa.co.za/eric.brouwer/interface.htm
Stewart

[PDK]

Thanks Clipclop,

That is a great little program. I downloaded it last night and used the simple (non pic just a resistor and 2n2222) parallel cable for FMS. With Xp I can fly with FMS and Microsoft Flight sim.

I have been looking for something like that for ages

Best regards
Phil