This project contains code for AVR MCUs to allow using the throttle which ships with the Saitek Pro Flight Yoke System as a standalone USB device. The code targets the AVR ATmega16U2 microcontroller which is found on the Arduino Leonardo prototyping board.
I did not succeed in getting the code to run as part of an Arduino sketch. Likely, this is due to the bootloader on the Arduino Leonardo, which interferes with the USB peripheral. Thus, the code must be flashed onto the target by direct serial programming, using a serial programmer such as the ATMEL-ICE or by using a separate Arduino board as a programmer.
Simply create a new project. Select the ATmega16U2 as the target device, then add all files in the src/ subdirectory of this repository to the project. Compile, then upload using a programmer of your choice.
A makefile is provided. To compile, simply type
make
To upload the binary to the device using avrdude, use
make program
You may have to specify your programmer type in the makefile using the PROGRAMMER variable.
The throttle is connected to the yoke by a 6-pin miniDIN connector. The pinout is as follows:
| miniDIN Pin # | Wire Color | Function | Driven by | ATmega16U2 pin | Arduino Leonardo Pin |
|---|---|---|---|---|---|
| 1 | blue | Clock | Yoke | PD1 | D2 |
| 2 | brown | "ready" (active low) | Throttle | PD0 | D3 |
| 3 | red | +5V | Yoke | - | - |
| 4 | orange | GND | - | - | - |
| 5 | yellow | Data | Throttle | PD2 | D0 |
| 6 | green | +5V | Yoke | - | - |
Additionally, two status LEDs can be connected on pins PD3 / D1 (green) and PD4 / D4 (red).