# QMK-based firmware for ASkeyboard Sono1 keyboard with additional Sono2 numpad
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), 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): Teensy 2.0++, Blue Pill, etc.
Make example for this keyboard (after setting up your build environment):
make 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):
## LEDs
Keyboard has 5 LEDs with common anode. Their cathodes are connected to R10–R14 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.
## 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.
1. Desolder all ICs, capacitors and resistors except R10–R14.
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: `make handwired/sono1: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.