Merge upstream master

22 files changed, 527 insertions, 0 deletions

diff --git a/keyboards/bastardkb/skeletyl/blackpill/halconf.h b/keyboards/bastardkb/skeletyl/blackpill/halconf.h
new file mode 100644
index 0000000000..1ba700a80f
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/blackpill/halconf.h
@@ -0,0 +1,27 @@
+/**
+ * Copyright 2020 Nick Brassel (tzarc)
+ * Copyright 2022 Charly Delay <charly@codesink.dev> (@0xcharly)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define HAL_USE_PWM TRUE
+#define HAL_USE_SERIAL TRUE
+#define HAL_USE_SPI TRUE
+#define SPI_USE_WAIT TRUE
+#define SPI_SELECT_MODE SPI_SELECT_MODE_PAD
+
+#include_next <halconf.h>
diff --git a/keyboards/bastardkb/skeletyl/blackpill/info.json b/keyboards/bastardkb/skeletyl/blackpill/info.json
new file mode 100644
index 0000000000..2e0f758704
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/blackpill/info.json
@@ -0,0 +1,6 @@
+{
+    "keyboard_name": "Skeletyl Blackpill",
+    "usb": {
+        "device_version": "1.0.0"
+    }
+}
diff --git a/keyboards/bastardkb/skeletyl/blackpill/mcuconf.h b/keyboards/bastardkb/skeletyl/blackpill/mcuconf.h
new file mode 100644
index 0000000000..2b3f30cbfe
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/blackpill/mcuconf.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2020 Nick Brassel (tzarc)
+ * Copyright 2021 Stefan Kerkmann (@KarlK90)
+ * Copyright 2022 Charly Delay <charly@codesink.dev> (@0xcharly)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef STM32_SPI_USE_SPI1
+#define STM32_SPI_USE_SPI1 TRUE
+
+#undef STM32_PWM_USE_TIM2
+#define STM32_PWM_USE_TIM2 TRUE
+
+#undef STM32_SERIAL_USE_USART1
+#define STM32_SERIAL_USE_USART1 TRUE
+
+#undef STM32_GPT_USE_TIM3
+#define STM32_GPT_USE_TIM3 TRUE
+
+#undef STM32_ST_USE_TIMER
+#define STM32_ST_USE_TIMER 5
diff --git a/keyboards/bastardkb/skeletyl/config.h b/keyboards/bastardkb/skeletyl/config.h
new file mode 100644
index 0000000000..82a07c5921
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/config.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2021 Quentin LEBASTARD <qlebastard@gmail.com>
+ * Copyright 2022 Charly Delay <charly@codesink.dev> (@0xcharly)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "config_common.h"
+
+/* Key matrix configuration. */
+#define MATRIX_ROWS 8 // Rows are doubled-up.
+#define MATRIX_COLS 5
+
+#define DIODE_DIRECTION ROW2COL
+
+/* Set 0 if debouncing isn't needed. */
+#define DEBOUNCE 5
+
+/* RGB settings. */
+#define RGBLED_NUM 36
+#define RGBLED_SPLIT \
+    { 18, 18 }
+
+/* RGB matrix support. */
+#ifdef RGB_MATRIX_ENABLE
+#    define SPLIT_TRANSPORT_MIRROR
+#    define RGB_MATRIX_LED_COUNT RGBLED_NUM
+#    define RGB_MATRIX_SPLIT RGBLED_SPLIT
+#    define RGB_MATRIX_MAXIMUM_BRIGHTNESS 50
+#    define RGB_MATRIX_DEFAULT_VAL RGB_MATRIX_MAXIMUM_BRIGHTNESS
+#    define RGB_DISABLE_WHEN_USB_SUSPENDED
+#    define RGB_MATRIX_KEYPRESSES
+#endif
diff --git a/keyboards/bastardkb/skeletyl/info.json b/keyboards/bastardkb/skeletyl/info.json
new file mode 100644
index 0000000000..799f630124
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/info.json
@@ -0,0 +1,48 @@
+{
+    "url": "https://www.bastardkb.com/skeletyl",
+    "usb": {
+        "pid": "0x1830"
+    },
+    "layouts": {
+        "LAYOUT_split_3x5_3": {
+            "layout": [
+                { "label": "L00", "x": 0, "y": 0 },
+                { "label": "L01", "x": 1, "y": 0 },
+                { "label": "L02", "x": 2, "y": 0 },
+                { "label": "L03", "x": 3, "y": 0 },
+                { "label": "L04", "x": 4, "y": 0 },
+                { "label": "R00", "x": 11, "y": 0 },
+                { "label": "R01", "x": 12, "y": 0 },
+                { "label": "R02", "x": 13, "y": 0 },
+                { "label": "R03", "x": 14, "y": 0 },
+                { "label": "R04", "x": 15, "y": 0 },
+                { "label": "L10", "x": 0, "y": 1 },
+                { "label": "L11", "x": 1, "y": 1 },
+                { "label": "L12", "x": 2, "y": 1 },
+                { "label": "L13", "x": 3, "y": 1 },
+                { "label": "L14", "x": 4, "y": 1 },
+                { "label": "R10", "x": 11, "y": 1 },
+                { "label": "R11", "x": 12, "y": 1 },
+                { "label": "R12", "x": 13, "y": 1 },
+                { "label": "R13", "x": 14, "y": 1 },
+                { "label": "R14", "x": 15, "y": 1 },
+                { "label": "L20", "x": 0, "y": 2 },
+                { "label": "L21", "x": 1, "y": 2 },
+                { "label": "L22", "x": 2, "y": 2 },
+                { "label": "L23", "x": 3, "y": 2 },
+                { "label": "L24", "x": 4, "y": 2 },
+                { "label": "R20", "x": 11, "y": 2 },
+                { "label": "R21", "x": 12, "y": 2 },
+                { "label": "R22", "x": 13, "y": 2 },
+                { "label": "R23", "x": 14, "y": 2 },
+                { "label": "R24", "x": 15, "y": 2 },
+                { "label": "L33", "x": 4, "y": 3 },
+                { "label": "L34", "x": 5, "y": 3 },
+                { "label": "L31", "x": 6, "y": 3 },
+                { "label": "R33", "x": 9, "y": 3 },
+                { "label": "R34", "x": 10, "y": 3 },
+                { "label": "R31", "x": 11, "y": 3 }
+            ]
+        }
+    }
+}
diff --git a/keyboards/bastardkb/skeletyl/readme.md b/keyboards/bastardkb/skeletyl/readme.md
new file mode 100644
index 0000000000..5a595d338f
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/readme.md
@@ -0,0 +1,31 @@
+# Skeletyl
+
+A very small keyboard made for ergonomic enthusiasts.
+
+* Keyboard Maintainer: [Bastard Keyboards](https://github.com/Bastardkb/)
+* Hardware Supported: elite-C V4
+* Hardware Availability: [Bastardkb.com](https://bastardkb.com/)
+
+## Building the firmware
+
+**You must specify the shield version when compiling/flashing the firmware.**
+
+The template is:
+
+```shell
+qmk compile -kb bastardkb/skeletyl/{VERSION}/elitec -km {KEYMAP}
+```
+
+| Shield Version  | default                                                         | via                                                         |
+| --------------- | --------------------------------------------------------------- | ----------------------------------------------------------- |
+| v1 (Elite-C)    | `qmk compile -kb bastardkb/skeletyl/v1/elitec -km default`      | `qmk compile -kb bastardkb/skeletyl/v1/elitec -km via`      |
+| v2 (Elite-C)    | `qmk compile -kb bastardkb/skeletyl/v2/elitec -km default`      | `qmk compile -kb bastardkb/skeletyl/v2/elitec -km via`      |
+| v2 (Splinky v2) | `qmk compile -kb bastardkb/skeletyl/v2/splinky/v2 -km default`  | `qmk compile -kb bastardkb/skeletyl/v2/splinky/v2 -km via`  |
+| v2 (Splinky v3) | `qmk compile -kb bastardkb/skeletyl/v2/splinky/v3 -km default`  | `qmk compile -kb bastardkb/skeletyl/v2/splinky/v3 -km via`  |
+| v2 (STeMCell)   | `qmk compile -kb bastardkb/skeletyl/v2/stemcell -km default`    | `qmk compile -kb bastardkb/skeletyl/v2/stemcell -km via`    |
+
+This keyboard is made to be used with the Miryoku layout, do not use the default keymap.
+
+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).
+
+See the [keyboard build instructions](http://docs.bastardkb.com/)
diff --git a/keyboards/bastardkb/skeletyl/v1/elitec/info.json b/keyboards/bastardkb/skeletyl/v1/elitec/info.json
new file mode 100644
index 0000000000..0d20c14c3d
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v1/elitec/info.json
@@ -0,0 +1,6 @@
+{
+    "keyboard_name": "Skeletyl Elite-C",
+    "usb": {
+        "device_version": "1.0.0"
+    }
+}
diff --git a/keyboards/bastardkb/skeletyl/v1/info.json b/keyboards/bastardkb/skeletyl/v1/info.json
new file mode 100644
index 0000000000..ad889c2304
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v1/info.json
@@ -0,0 +1,5 @@
+{
+    "usb": {
+        "device_version": "1.0.0"
+    }
+}
diff --git a/keyboards/bastardkb/skeletyl/v2/elitec/info.json b/keyboards/bastardkb/skeletyl/v2/elitec/info.json
new file mode 100644
index 0000000000..b339ca877c
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/elitec/info.json
@@ -0,0 +1,6 @@
+{
+    "keyboard_name": "Skeletyl Elite-C",
+    "usb": {
+        "device_version": "2.0.0"
+    }
+}
diff --git a/keyboards/bastardkb/skeletyl/v2/splinky_2/config.h b/keyboards/bastardkb/skeletyl/v2/splinky_2/config.h
new file mode 100644
index 0000000000..02a8bd6551
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/splinky_2/config.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Charly Delay <charly@codesink.dev> (@0xcharly)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/* Key matrix configuration. */
+#define MATRIX_ROW_PINS \
+    { GP26, GP5, GP4, GP9 }
+#define MATRIX_COL_PINS \
+    { GP28, GP15, GP6, GP7, GP8 }
+
+/* Handedness. */
+#define MASTER_RIGHT
+
+// To use the handedness pin, resistors need to be installed on the adapter PCB.
+// If so, uncomment the following code, and undefine MASTER_RIGHT above.
+// #define SPLIT_HAND_PIN GP13
+// #define SPLIT_HAND_PIN_LOW_IS_LEFT  // High -> right, Low -> left.
+
+/* serial.c configuration (for split keyboard). */
+#define SOFT_SERIAL_PIN GP1
+
+/* RGB settings. */
+#define RGB_DI_PIN GP0
+
+/* Reset. */
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET_LED GP17
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET_TIMEOUT 1000U
diff --git a/keyboards/bastardkb/skeletyl/v2/splinky_2/info.json b/keyboards/bastardkb/skeletyl/v2/splinky_2/info.json
new file mode 100644
index 0000000000..cdcf967c35
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/splinky_2/info.json
@@ -0,0 +1,6 @@
+{
+    "keyboard_name": "Skeletyl Splinky",
+    "usb": {
+        "device_version": "2.0.0"
+    }
+}
diff --git a/keyboards/bastardkb/skeletyl/v2/splinky_2/readme.md b/keyboards/bastardkb/skeletyl/v2/splinky_2/readme.md
new file mode 100644
index 0000000000..662eb5825c
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/splinky_2/readme.md
@@ -0,0 +1,5 @@
+# Splinky controller
+
+The splinky is a Pro-Micro/Elite-C replacement with USB-C and RP2040.
+
+See [plut0nium/0xB2](https://github.com/plut0nium/0xB2/#releases) to figure out the right version for you (v2 or v3).
diff --git a/keyboards/bastardkb/skeletyl/v2/splinky_2/rules.mk b/keyboards/bastardkb/skeletyl/v2/splinky_2/rules.mk
new file mode 100644
index 0000000000..1ce16352dd
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/splinky_2/rules.mk
@@ -0,0 +1,34 @@
+# MCU name
+MCU = RP2040
+
+# Bootloader selection
+BOOTLOADER = rp2040
+
+# RP2040-specific options
+ALLOW_WARNINGS = yes
+PICO_INTRINSICS_ENABLED = no # ATM Unsupported by ChibiOS.
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = no        # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+NKRO_ENABLE = no            # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+
+AUDIO_SUPPORTED = no        # Audio is not supported
+RGB_MATRIX_SUPPORTED = yes  # RGB matrix is supported and enabled by default
+RGBLIGHT_SUPPORTED = yes    # RGB underglow is supported, but not enabled by default
+RGB_MATRIX_ENABLE = yes     # Enable keyboard RGB matrix functionality
+RGB_MATRIX_DRIVER = WS2812
+
+SPLIT_KEYBOARD = yes
+LAYOUTS = split_3x5_3
+
+SERIAL_DRIVER = vendor
+WS2812_DRIVER = vendor
diff --git a/keyboards/bastardkb/skeletyl/v2/splinky_3/config.h b/keyboards/bastardkb/skeletyl/v2/splinky_3/config.h
new file mode 100644
index 0000000000..e33ced273d
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/splinky_3/config.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Charly Delay <charly@codesink.dev> (@0xcharly)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/* Key matrix configuration. */
+#define MATRIX_ROW_PINS \
+    { GP26, GP5, GP4, GP9 }
+#define MATRIX_COL_PINS \
+    { GP28, GP21, GP6, GP7, GP8 }
+
+/* Handedness. */
+#define MASTER_RIGHT
+
+// To use the handedness pin, resistors need to be installed on the adapter PCB.
+// If so, uncomment the following code, and undefine MASTER_RIGHT above.
+// #define SPLIT_HAND_PIN GP15
+// #define SPLIT_HAND_PIN_LOW_IS_LEFT  // High -> right, Low -> left.
+
+/* serial.c configuration (for split keyboard). */
+#define SOFT_SERIAL_PIN GP1
+
+/* RGB settings. */
+#define RGB_DI_PIN GP0
+
+/* Reset. */
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET_LED GP17
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET_TIMEOUT 1000U
diff --git a/keyboards/bastardkb/skeletyl/v2/splinky_3/info.json b/keyboards/bastardkb/skeletyl/v2/splinky_3/info.json
new file mode 100644
index 0000000000..cdcf967c35
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/splinky_3/info.json
@@ -0,0 +1,6 @@
+{
+    "keyboard_name": "Skeletyl Splinky",
+    "usb": {
+        "device_version": "2.0.0"
+    }
+}
diff --git a/keyboards/bastardkb/skeletyl/v2/splinky_3/readme.md b/keyboards/bastardkb/skeletyl/v2/splinky_3/readme.md
new file mode 100644
index 0000000000..662eb5825c
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/splinky_3/readme.md
@@ -0,0 +1,5 @@
+# Splinky controller
+
+The splinky is a Pro-Micro/Elite-C replacement with USB-C and RP2040.
+
+See [plut0nium/0xB2](https://github.com/plut0nium/0xB2/#releases) to figure out the right version for you (v2 or v3).
diff --git a/keyboards/bastardkb/skeletyl/v2/splinky_3/rules.mk b/keyboards/bastardkb/skeletyl/v2/splinky_3/rules.mk
new file mode 100644
index 0000000000..1ce16352dd
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/splinky_3/rules.mk
@@ -0,0 +1,34 @@
+# MCU name
+MCU = RP2040
+
+# Bootloader selection
+BOOTLOADER = rp2040
+
+# RP2040-specific options
+ALLOW_WARNINGS = yes
+PICO_INTRINSICS_ENABLED = no # ATM Unsupported by ChibiOS.
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = no        # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+NKRO_ENABLE = no            # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+
+AUDIO_SUPPORTED = no        # Audio is not supported
+RGB_MATRIX_SUPPORTED = yes  # RGB matrix is supported and enabled by default
+RGBLIGHT_SUPPORTED = yes    # RGB underglow is supported, but not enabled by default
+RGB_MATRIX_ENABLE = yes     # Enable keyboard RGB matrix functionality
+RGB_MATRIX_DRIVER = WS2812
+
+SPLIT_KEYBOARD = yes
+LAYOUTS = split_3x5_3
+
+SERIAL_DRIVER = vendor
+WS2812_DRIVER = vendor
diff --git a/keyboards/bastardkb/skeletyl/v2/stemcell/config.h b/keyboards/bastardkb/skeletyl/v2/stemcell/config.h
new file mode 100644
index 0000000000..44acd40e7b
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/stemcell/config.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2022 Charly Delay <charly@codesink.dev> (@0xcharly)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/* Key matrix configuration. */
+#define MATRIX_ROW_PINS \
+    { F7, C6, D4, B5 }
+#define MATRIX_COL_PINS \
+    { F5, B6, D7, E6, B4 }
+
+/* Handedness. */
+#define MASTER_RIGHT
+
+// To use the handedness pin, resistors need to be installed on the adapter PCB.
+// If so, uncomment the following code, and undefine MASTER_RIGHT above.
+// #define A0 PAL_LINE(GPIOA, 0)
+// #define SPLIT_HAND_PIN A0
+// #define SPLIT_HAND_PIN_LOW_IS_LEFT  // High -> right, Low -> left.
+
+/* serial.c configuration (for split keyboard). */
+#define SOFT_SERIAL_PIN D2
+
+/* RGB settings. */
+#define RGB_DI_PIN D3
+#define WS2812_PWM_DRIVER PWMD2
+#define WS2812_PWM_CHANNEL 4
+#define WS2812_PWM_PAL_MODE 1
+#define WS2812_DMA_STREAM STM32_DMA1_STREAM7
+#define WS2812_DMA_CHANNEL 3
+
+/* CRC. */
+#define CRC8_USE_TABLE
+#define CRC8_OPTIMIZE_SPEED
diff --git a/keyboards/bastardkb/skeletyl/v2/stemcell/halconf.h b/keyboards/bastardkb/skeletyl/v2/stemcell/halconf.h
new file mode 100644
index 0000000000..dbeb6aeaa0
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/stemcell/halconf.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2021 Charly Delay <charly@codesink.dev> (@0xcharly)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define HAL_USE_PWM TRUE
+#define HAL_USE_SERIAL TRUE
+
+#include_next <halconf.h>
diff --git a/keyboards/bastardkb/skeletyl/v2/stemcell/info.json b/keyboards/bastardkb/skeletyl/v2/stemcell/info.json
new file mode 100644
index 0000000000..34e40c9b38
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/stemcell/info.json
@@ -0,0 +1,6 @@
+{
+    "keyboard_name": "Skeletyl STeMCell",
+    "usb": {
+        "device_version": "2.0.0"
+    }
+}
diff --git a/keyboards/bastardkb/skeletyl/v2/stemcell/mcuconf.h b/keyboards/bastardkb/skeletyl/v2/stemcell/mcuconf.h
new file mode 100644
index 0000000000..6afebade36
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/stemcell/mcuconf.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2021 Charly Delay <charly@codesink.dev> (@0xcharly)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef STM32_SERIAL_USE_USART1
+#define STM32_SERIAL_USE_USART1 FALSE
+
+#undef STM32_PWM_USE_TIM2
+#define STM32_PWM_USE_TIM2 TRUE
+
+#undef STM32_ST_USE_TIMER
+#define STM32_ST_USE_TIMER 5
diff --git a/keyboards/bastardkb/skeletyl/v2/stemcell/rules.mk b/keyboards/bastardkb/skeletyl/v2/stemcell/rules.mk
new file mode 100644
index 0000000000..ff20b0c742
--- /dev/null
+++ b/keyboards/bastardkb/skeletyl/v2/stemcell/rules.mk
@@ -0,0 +1,33 @@
+# MCU name
+MCU = STM32F411
+
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+CONVERT_TO = stemcell
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+NKRO_ENABLE = no            # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+
+AUDIO_SUPPORTED = no        # Audio is not supported
+RGB_MATRIX_SUPPORTED = yes  # RGB matrix is supported and enabled by default
+RGBLIGHT_SUPPORTED = yes    # RGB underglow is supported, but not enabled by default
+RGB_MATRIX_ENABLE = yes     # Enable keyboard RGB matrix functionality
+RGB_MATRIX_DRIVER = WS2812
+
+SPLIT_KEYBOARD = yes
+LAYOUTS = split_3x5_3
+
+SERIAL_DRIVER = usart
+WS2812_DRIVER = pwm
+
+DEBOUNCE_TYPE = asym_eager_defer_pk