# CMDR Joystick

RC Joystick with 2 hall effect gimbals and 8 buttons for use both with simulators and ELRS Rx equipped quads.

## Layout

```cpp
USB Joystick Layer 0

| B3  |                               | B1 |
| Fn1 |                               | B2 |
--------------------------------------------
|  | B4 |                          | B5 |  |
|                                          |
|   X1,Y1                          X2,Y2   |
|            | B6 |     | B7 |             |
--------------------------------------------

USB Joystick Layer 1 (Fn1)

| Fn2 |                               | B1 |
| Fn1 |                               | B2 |
--------------------------------------------
|  | B8 |                          | B9 |  |
|                                          |
|   X1,Y1                          X3,Y2   |
|            | B10 |    | B11 |            |
--------------------------------------------

USB Joystick Layer 2 (Fn2)

| Fn2 |                              | B16 |
| Fn1 |                              | B17 |
--------------------------------------------
|  | B12 |                        | B13 |  |
|                                          |
|   X1,Y1                          X3,Y3   |
|           | B14 |    | B15 |             |
--------------------------------------------

ELRS Layer

| CH6 on  |                      | CH5 on  |
| CH6 off |                      | CH5 off |
--------------------------------------------
|  | CH7 |                        | CH8 |  |
|                                          |
|    X,Y                            X,Y    |
|  CH1,CH2   | CH9 |   | CH10 |   CH3,CH4  |
--------------------------------------------
```

## Features

- Ergonomic design (low profile)
- Hall effect gimbals
- Supports both USB HID joystick and ELRS Tx module
- Total 6x axis and 15x buttons (using Fn mode) implemented in USB HID mode
- 10 Channels implemented in ELRS mode (4x axis, 6x buttons)
- Low latency (1.6ms ELRS, 5ms USB)

## Build environment

- Platformio
  - env: teensylc
  - platform: teensy
  - board: teensylc
  - framework: arduino
- Flashing via Teensy USB bootloader
  - Pressing boot button on teensy
  - Press and hold "top lower right button" when powering the unit

## Hardware

- 1x TeensyLC MCU
- 2x FrSky M7 or M10 gimbals
- 6x Kailh choc low profile switches
- 2x Cherry MX switches
- 1x PCB
- 1x Bottom case
- 1x Top plate
- 2x Gimbal spacers

## Calibration

_The button is from here reffered to "top lower left button"_

1 Turn off the unit
2 Press and hold the button while powering the unit
3 Release the button and center the two gimbals
4 Press the button again
5 Move the two gimbals to it maximux X and Y
6 Press the button one mo time
7 Done!