132 lines
6.3 KiB
Markdown
132 lines
6.3 KiB
Markdown
# CMDR keyboard 42 (swedish layout)
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*This HW(PCB) was original made for use with the TeensyLC module and is reused by patching it to fit the rp2040-zero module*
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## Layout
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```text
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Layer 0
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--------------------------------------- ---------------------------------------
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| Tab | Q | W | E | R | T | | Y | U | I | O | P | Å |
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| LCtrl | A | S | D | F | G | | H | J | K | L | Ö | Ä |
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| Shift | Z | X | C | V | B | | N | M | ,; | .: | -_ | Shift |
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--------------------| Alt | Fn | Spc | |Enter| Fn |AG+Fn|--------------------
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------------------- -------------------
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Layer 1 (Fn)
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--------------------------------------- ---------------------------------------
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| Esc | F1 | F2 | F3 | F4 | F5 | | F6 | F7 | F8 | F9 | F10 | BSpc |
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| LCtrl | 1! | 2"@ | 3#£ | 4¤$ | 5% | | 6& | 7/{ | 8([ | 9)] | 0=} | Enter |
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| Shift | 6& | 7/{ | 8([ | 9)] | 0=} | | <>| | ´`± | '*´ | ¨^~ | +?\ | Shift |
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--------------------| Alt | Fn | Spc | | BSpc| Fn |AG+Fn|--------------------
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------------------- -------------------
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Layer 2 (Fn + Fn)
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--------------------------------------- ---------------------------------------
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| Esc | F11 | F12 | F13 | F14 |PrSrc| | § | SLk | Gui | OSLk| CpLk| BSpc |
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| LCtrl | F15 | F16 | F17 | F18 | F19 | | Left| Down| Up |Right| Del | Enter |
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| Shift | F20 | F21 | F22 | F23 | F24 | | Home| PgD | PgU | End | Ins | Shift |
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--------------------| Alt | Fn | Spc | | BSpc| Fn |AG+Fn|--------------------
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------------------- -------------------
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```
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## Features
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- 42 keys "Split" keyboard layout. 36 finger buttons and 6 thumb buttons.
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- Extreme low profile (only one pcb).
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- Cost efficient solution with one pcb and one 3D printed cover.
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- Function layers provide three active maps (primary + two Fn layers) with sticky-lock support.
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- High-speed key scanning: 250 µs cadence with 2-scan press / 3-scan release debounce for sub-millisecond latency and immediate USB reporting.
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- Status indication driven by the joystick-style heartbeat model:
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- Heartbeat green while waiting for USB enumeration.
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- Solid green during normal operation; automatic heartbeat idle animation after 5 s inactivity.
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- Blue solid / flashing when sticky lock is armed / latched.
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- Red solid on firmware error, red flashing for Caps Lock.
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## Build environment rp2040 Zero
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Rust embedded, rp2040 HAL
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- Cargo (cargo.toml)
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- rustup target add thumbv6m-none-eabi
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- cargo install elf2uf2-rs --locked
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- Flashing via rp2040 USB bootloader
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- Pressing reset/boot button on rp2040 Zero board
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- Pressing upper left corner on the keyboard when connecting the usb cable
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## Hardware
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[Schematics](eCAD/cmdr_mainboard_42_v1.pdf)
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[patch instruction](/eCAD/rp2040_42_patch_instruction.md)
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- 1x rp2040 Zero
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- 36x Cherry MX compatible switches
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- 6x Kailh Choc low profile switches
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- 42x 1N4148 diodes
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- 1x PCB [Gerber files](eCAD/cmdr_mainboard_42_gerber_v1.zip) (please see [patch instructions](/eCAD/rp2040_42_patch_instruction.md))
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- 1x MCU cover [STL file](mCAD/cmdr_keyboard_42_cover.stl)
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- 1x 6x3 Cherry MX mounting jig (optional) [STL file](mCAD/cmdr_mounting_jig-MountingJig.stl)
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***
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# CMDR keyboard 51 (only in concept phase)
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## Layout
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```text
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Layer 0
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-------------------------------------- ------ ------ --------------------------------------
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| Tab | Q | W | E | R | T || SLk | |PrSrc|| Y | U | I | O | P | Å |
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| LCtrl | A | S | D | F | G || M2 | | M5 || H | J | K | L | Ö | Ä |
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| Shift | Z | X | C | V | B || M3 |-----| M6 || N | M | ,; | .: | -_ | Shift |
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--------------------| Alt | Fn | Spc || BSpc| Gui |Enter|| Spc | Fn |AG+Fn|--------------------
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------------------ ----------------- ------------------
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Layer 1 (Fn)
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-------------------------------------- ------ ------ --------------------------------------
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| Esc | F1 | F2 | F3 | F4 | F5 || M1 | | M4 || F6 | F7 | F8 | F9 | F10 | BSpc |
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| LCtrl | 1! | 2"@ | 3#£ | 4¤$ | 5% || M2 | | M5 || 6& | 7/{ | 8([ | 9)] | 0=} | Enter |
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| Shift | 6& | 7/{ | 8([ | 9)] | 0=} || M3 |-----| M6 || <>| | ´`± | '*´ | ¨^~ | +?\ | Shift |
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--------------------| Alt | Fn | Spc || BSpc| Gui |Enter|| Spc | Fn |AG+Fn|--------------------
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------------------ ----------------- ------------------
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Layer 2 (Fn + Fn)
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-------------------------------------- ------ ------ --------------------------------------
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| Esc | F11 | F12 | F13 | F14 | || M1 | | M4 || § | SLk | | | CpLk| BSpc |
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| LCtrl | F15 | F16 | F17 | F18 | F19 || M2 | | M5 || Left| Down| Up |Right| Del | Enter |
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| Shift | F20 | F21 | F22 | F23 | F24 || M3 |-----| M6 || Home| PgD | PgU | End | Ins | Shift |
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--------------------| Alt | Fn | Spc || BSpc| Gui |Enter|| Spc | Fn |AG+Fn|--------------------
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------------------ ----------------- ------------------
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```
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## Features
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- 51 keys "Split" keyboard layout. 36 finger buttons, 9 thumb buttons and 6 function buttons.
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- Extreme low profile (only one pcb).
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- Cost efficient solution with one pcb and one 3D printed cover.
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- Function layers with the same immediate-report, low-latency scanning pipeline as the 42-key variant (primary + two Fn layers with sticky lock).
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- Status LED behaviour mirrors the joystick/42-key firmware: heartbeat during boot, idle animation after 5 s inactivity, blue indicators for sticky lock, and red for caps/error conditions.
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## Build environment rp2040 Zero
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Rust embedded, rp2040 HAL
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- Cargo (cargo.toml)
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- rustup target add thumbv6m-none-eabi
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- cargo install elf2uf2-rs --locked
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- Flashing via rp2040 USB bootloader
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- Pressing reset/boot button on rp2040 Zero board
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- Pressing upper left corner on the keyboard when connecting the usb cable
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## Hardware
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[Schematics](eCAD/cmdr_mainboard_52_v1.pdf)
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- 1x rp2040 Zero
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- 45x Cherry MX compatible switches
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- 6x Kailh Choc low profile switches
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- 51x 1N4148 diodes
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- 1x PCB [Gerber files](eCAD/cmdr_mainboard_51_gerber_v1.zip)
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- 1x MCU cover (TBD)
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- 1x 6x3 Cherry MX mounting jig (optional) [STL file](mCAD/cmdr_mounting_jig-MountingJig.stl)
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