CMDR Joystick 25
RC(ELRS)/USB Joystick with 2 hall effect gimbals, 2 hat switches and 25 buttons for use both with PC simulators and ELRS Rx equipped quads.
Layout
Button index map:
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| 0 L| 1 U| | 2 | | 3 L| 4 U|
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| | 5 | 6 | 7 | | 12 | 11 | 10 | |
| |
| | 8 | | 13 | |
| | 9 | | 14 | |
| X1/Y1 X2/Y2 |
| | 16 | | 21 | |
| | 19 | 15 | 17 | | 24 | 20 | 22 | |
| | 18 | | 23 | |
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USB HID joystick map:
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| B1 L| B2 U| | B3 | | B4 L| B5 U|
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| | B6 | B7 | B8/16| |B13/17| B12 | B11 | |
| |
| | B9 | | B14 | |
| | B10 | | B15 | |
| X1/Y1 X2/Y2 |
| | H1U | | H2U | |
| | H1L | B18 | H1R | | H2L | B19 | H2R | |
| | H1D | | H2D | |
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Button (Switch) 7 changes following:
* hat1 => hat3 (button press B20).
Button (switch) 12 changes following:
* B4 => B21
* B5 => B22
* B14 => B23
* B15 => B24
* hat2 => hat4 (button bpress B25)
ELRS channel map (+ = ON, - = OFF, CHxP/M/Z = trim)
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|CH7-L|CH7+U| | - | |CH8-L|CH8+U|
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| | THL | CH9 | CH5 | | CH6 |CH11-|CH11+| |
| |
| |CH10+| |CH12+| |
| |CH10-| |CH12-| |
| CH1/CH2 CH3/CH4 |
| | - | |CH4P | |
| |CH1M |CH12Z|CH1P | |CH3M |CH34Z|CH3P | |
| | - | |CH4M | |
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Config Layer (holding CONFIG button)
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|BOOT L| CAL U| | CONFIG | | USB L|ELRS U|
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| | THL-| THL+| - | | - | - | - | |
| |
| | - | | - | |
| | - | | - | |
| -/- -/- |
| | - | | - | |
| | - | - | - | | - | - | - | |
| | - | | - | |
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Features
- Ergonomic design (low profile)
- Hall effect gimbals
- Supports both USB HID joystick and ELRS Tx
- Total 6x axis, 4x hat switches and 25x buttons (using Fn mode) implemented in USB HID mode
- 12 Channels implemented in ELRS mode (4x axis, 8x buttons)
Hardware
-
2x FrSky M7 or M10 gimbals M7 datasheet
-
6x Kailh choc low profile switches Brown
-
6x Cherry MX switches Brown
-
2x Miniature Toggle Switch (M6 shaft, 7-8mm wide body. Ex Apem 5636) Apem 5000 series
-
2x Alpine RKJXM1015004 hat switches pdf
-
1x Bottom case (3D printed)
-
1x Top plate (3D printed)
-
2x Hat swith top (3D printed) stl
-
1x Custom PCB (CMDR Joystick 25 rev A)
-
1x ELRS TX (using a EP1 TCXO Dual receiver reprogrammed as a tramsmitter)
- Link to EP1
- Reprogramming instructions (using ExpressLRS Configurator):
- Select latest release
- Device category = Generic target used as base 2.4Ghz
- Device = Generic ESP32 2.4GHz Gemini TX
- Flash to device
- Use following custom settings in 10.0.0.1/hardware.html:
{"customised":"true","serial_rx":3,"serial_tx":1,"radio_busy":36,"radio_dio1":37,"radio_miso":33,"radio_mosi":32,"radio_nss":27,"radio_rst":26,"radio_sck":25,"radio_busy_2":39,"radio_dio1_2":34,"radio_nss_2":13,"power_rxen":10,"power_txen":14,"power_rxen_2":9,"power_txen_2":15,"power_min":0,"power_high":2,"power_max":2,"power_default":0,"power_control":0,"power_values":[-10,-6,-3],"button":0,"led_rgb":22,"led_rgb_isgrb":true,"screen_type":0}
Software Build environment
Rust
- Cargo (rust embedded)
- Flashing via Cargo
- Press and hold boot button on rp2040zero board while perform a reset
- Press and hold CONF and press BOOT button.
References
Calibration
- Center both gimbals.
- Press and hold CONF button and press CAL botton. Status led will start blinking green.
- Move both gimbals to all corners.
- Press right hat switch to save calibration data to eeprom.