keychron_qmk_firmware/keyboards/handwired/sono1/readme.md
Dmitry Nosachev c5728aebee
Add Teensy2.0++ revision and VIA keymap to handwired/sono1 (#15296)
* teensy2.0pp revision, via support

* updated documentation

* Update keyboards/handwired/sono1/t2pp/rules.mk
2022-01-10 01:26:06 -08:00

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# QMK-based firmware for ASkeyboard Sono1 keyboard with additional Sono2 numpad
![Sono1](https://i.imgur.com/eb046DOh.jpeg)
ASkeyboard Sono1 keyboard conversion project: direct connection of Black Pill to the matrix.
* Keyboard Maintainer: [DmNosachev](https://github.com/DmNosachev)
* Hardware Supported: [ASkeyboard Sono1](http://www5f.biglobe.ne.jp/~silencium/keyboard/html/alps.html), Teensy 2.0++ or Black Pill STM32F103C8T6 MCU board. Alternatively you can use any MCU which is supported by QMK and has 28 IO pins or more (15x8 matrix and 5 LEDs): Blue Pill, Black Pill STM32F4xx, etc.
Make example for this keyboard (after setting up your build environment):
qmk compile -kb handwired/sono1:default
See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
# Modding
## Matrix
ASkeyboard Sono1 has 15x8 matrix. Sono2 numpad connects directly to the main matrix.
Rows (R0-RE) and columns (R0-C7):
![Sono1 rows and columns](https://i.imgur.com/5Owazg6h.jpeg)
Desolder all ICs, capacitors and resistors except R10R14.
## LEDs
Keyboard has 5 LEDs with common anode. Their cathodes are connected to R10R14 resistors (you may want to replace them to adjust LED brightness for 3.3V voltage). Add 5 wire jumpers to connect them to the corresponding traces.
![Sono1 LEDs](https://i.imgur.com/opxc2A3h.jpeg)
## Teensy 2.0++
Suggested mount position for the Teensy 2.0++ (view from the bottom side of the PCB):
```
R8 R9 RA RB RC RD RE L0 R8 C7 C6 C5 C4 C3 C2 C1 C0
* | | | | | | | * | | | | | | | |
,------------------------------------------------------------,
,---|GN B7 D0 D1 D2 D3 D4 D5 D6 D7 E0 E1 C0 C1 C2 C3 C4 C5 C6 C7 |
| |D7 |
|USB| |
| |GN |
'---|V B6 B5 B4 B3 B2 B1 B0 E7 E6 G A F0 F1 F2 F3 F4 F5 F6 F7 |
`------------------------------------------------------------'
* | | | | | | | | | | | |
GN L2 L1 L3 L4 R7 R6 R5 R4 R3 R2 R1 R0
```
Asterisk sign designates pins of the Teensy that don't align properly with PCB and need to be rewired.
1. Compile and flash the firmware: `qmk compile -kb handwired/sono1/t2pp:default:flash`. Press the reset button on Teensy to launch the bootloader.
2. You will need to solder several pin headers to Teensy: two 7 pin headers (C0C7, D5B7), 8 pin (F0F7) and 4 pin (B1—B4).
3. Solder the Teensy to keyboard's PCB. You will need to manually reroute only 3 pins.
## Black Pill
Suggested mount position for the Black Pill (view from the bottom side of the PCB):
```
R8 R9 RA RB RC RD RE L0 Vcc C7 C6 C5 C4 C3 C2 C1 C0 Vcc
* | | | * | | | | | | | | | * * *
,------------------------------------------------------------------------,
,---|GND B8 B9 C13 RST A0 A1 A2 A3 A4 A5 A6 A7 B0 B1 B10 B11 3V3| A3 A4 3V3
| | B7 A15 A13|
|USB| A14|
| | B12 A10 GND|
'---|GND 3V3 B7 B6 B5 B4 B3 A15 A12 A11 A10 A9 A8 B15 B14 B13 B12 |
'------------------------------------------------------------------------' A9 B3 A5
| | | | * | | | | * * * *
GND L2 L1 L3 L4 R7 R6 R5 R4 R3 R2 R1 R0
```
Asterisk sign designates pins of the Black Pill that don't align properly with PCB and need to be rewired.
![Black Pill](https://i.imgur.com/KQjTWVbh.jpeg)
1. Solder 4-pin SWD header to Black Pill.
2. Burn [STM32duino bootloader](https://github.com/rogerclarkmelbourne/STM32duino-bootloader/blob/master/bootloader_only_binaries/generic_boot20_pb12.bin) to Black Pill.
3. Compile and flash the firmware: `qmk compile -kb handwired/sono1/stm32f103:default:flash`
4. Connect rows, columns and LED pads to the corresponding pins of the Black Pill.
## Keymap
'CUR LOCK' key on Sono2 numpad has locking switch by default (Alps SKCL lock). QMK [supports mechanical locking switches](https://docs.qmk.fm/#/faq_keymap?id=mechanical-lock-switch-support) for CapsLock, NumLock and ScrollLock keycodes.
There is 'debug' keymap which doesn't output any scancodes, but displays row and column numbers of pressed buttons to console (hid_listen or QMK Toolbox).