this is the complete build up Interface which can be ordered.
 

Scematic

Description:
The Interface functions together with you rc-transmitter as a joystick with up to 
6 axes (7 on request) and 6 buttons. It can be used as control interface for the 
most common simulation programs which support a joystick interface and also any 
other application that can be controlled by a joystick in principle:
- Aerofly V1.2x
- Aerofly pro (as secondary interface only, the original Afp-Dongle is still required)
- FMS 2.0
- Piccofly
- Easyfly
- Microsoft Flight Simulator
- Realflight G2

The processor PIC16c745 interprets the transmitter modulation signal (PPM) and 
provides a HID compatible joystick USB- device. The interface uses a HID device 
driver which normaly is provided by your windows (Win98 up to XP, but not Win NT,
Linux ?). 
The first 7 rc-transmitter channels are digitized and used as 7 joystick axes.
Die first button is built by the extrem position of the 3rd channel. the other buttons
are build of the mid and extrem positions of the 5th cahnnel and above.
At transmitters with less than 7 channels the axes 5 to 7 are fully or partially build 
of the the mirrored channels of the channel 2 to 4.

Each axis is digitized in 256 steps.

The chip can also be used to build a standalone interface "USB-Gamebird":
If you connect directly potentiometers and switches to the chip, it can be set into 
a standalone interface mode, with out having to connect it to a PPM signal.
This mode is activatet when you connect RB4 to GND. You can modify old or defect 
rc-transmitters and use their potis and switches.
 

Installation of the Interface:

1. Windows: 

The device in a hot plugable pnp interface. If you connect it the first time windows
reports that it has found a new HID device named "RC-Joystick USB Interface".
The driver is automatically intalled then. At elder windows version you might be 
requestet to put in the windows system CDROM. After installation you will find a new
device in the system console and a new gamecontroller "RC-Joystick".
Depending on the capabilities of the HID- driver you can use then this device as 
joystick with 6 or 7 axes and 6 buttons.
If the "RC-J" does not appear automatically , it has to added manually into the 
system console.

The LED at interface flashes when the device was found by windows.

When the rc-transmitter is connected correctly the LED blinks. 

2. Calibation:

Please do not use the system driver calibration. I recomend to calibrate the axes at 
transmitter or within the calibration function of your application. 
 

Order:
 

Prices:

The preprogrammed chip PIC16c745 (28SO or DIL28) can be ordered if you want to 
build up your own pcb.

PIC16c745 1ps  15 €

The complete build up and testet USB interface (incl. cable and connector of your 
choice).

RC-USB 1ps    47,50 €

to every delivery you have to add 2,50€ of mailing within germany or 4,00€ outside
germany.
!! Orders outside germany have to be payed in advance, I do not accept credit cards.

The money has to be sent to my address or transfered by bank to:
Aalener Volksbank 61490150  KNr 37346008
IBAN : DE31614901500037346008   BIE : GENODES1AAV

Please add some informations to your email oder:

- Your delivery address.
- how to pay.
- The connector type of your transmitter (3.5mm , 180~DIN oder 240~DIN). You can 
also add the rc-transmitter type.

Orders are exclusively possiple via email to: w.wiedmann@t-online.de .
 
 

Warranty:

I offer no warranty of any kind either expressed or impied ncluding but not limited to impied
warranties of merchantability or fitness for a paticular purpose.
PIC16c745 are electrostatic sensitive devices. They can be destroyed by electrostatic
charge or a wrong supply voltage. I am not liable for errors herein or incidential or 
consequential damages that are implied of the use of the interfaces or the devices. 
The Interface can be hot plugged to the computer. Take care that the transmitter is 
galvanically not connected with the chassis of the computer. Do not use while the 
battery charger is connected to the transmitter. Used devices cannot be exchanged.