diff --git a/keyboards/mschwingen/modelm/README.md b/keyboards/mschwingen/modelm/README.md
new file mode 100644
index 0000000000..f4cb360625
--- /dev/null
+++ b/keyboards/mschwingen/modelm/README.md
@@ -0,0 +1,25 @@
+# atmega32U4 board for IBM Model M
+
+
+
+This is a configuration of QMK intended to be used with the [Model M USB PCB](https://github.com/mschwingen/hardware/tree/master/modelm-usb).
+
+* Keyboard Maintainer: [Michael Schwingen](https://github.com/mschwingen/)
+* Hardware Supported: [Model M USB PCB](https://github.com/mschwingen/hardware/tree/master/modelm-usb)
+* Hardware Availability: need to build your own.
+
+Make example for this keyboard (after setting up your build environment), run one of:
+
+ make mschwingen/modelm/led_wired:default
+ make mschwingen/modelm/led_ffc:default
+ make mschwingen/modelm/led_ws2812:default
+
+flash:
+
+ make mschwingen/modelm/led_wired:default:flash
+ make mschwingen/modelm/led_ffc:default:flash
+ make mschwingen/modelm/led_ws2812:default:flash
+
+Bootloader: do not use the QMK bootloader, use the bootloader from [here](https://github.com/mschwingen/modelm-lufa-bootloader)
+
+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).
diff --git a/keyboards/mschwingen/modelm/config.h b/keyboards/mschwingen/modelm/config.h
new file mode 100644
index 0000000000..07881cd211
--- /dev/null
+++ b/keyboards/mschwingen/modelm/config.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2020 Michael Schwingen
+
+ * 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 .
+ */
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0x558E
+#define DEVICE_VER 0x0001
+#define MANUFACTURER mschwingen
+#define PRODUCT IBM Model M 101/102
+
+/* key matrix size */
+#define MATRIX_ROWS 16
+#define MATRIX_COLS 8
+
+/* pins for external shift registers */
+#define SR_LOAD_PIN B0
+#define SR_CLK_PIN B1
+#define SR_DIN_PIN B3
+#define SR_DOUT_PIN B2
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed (5 is default) */
+#define DEBOUNCE 5
+
+/*
+ * Feature disable options
+ * These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+#define NORMAL_PRINT
+//#define USER_PRINT
+
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+//#define DEBUG_MATRIX_SCAN_RATE
+#define DYNAMIC_MACRO_NO_NESTING
+
+#define QMK_LED E6
+
+#define MODELM_LED1 B5
+#define MODELM_LED2 B6
+#define MODELM_LED3 D0
+
+#if defined(KEYBOARD_mschwingen_modelm_led_wired)
+# define MODELM_LED_CAPSLOCK MODELM_LED1
+# define MODELM_LED_SCROLLOCK MODELM_LED2
+# define MODELM_LED_NUMLOCK MODELM_LED3
+#elif defined(KEYBOARD_mschwingen_modelm_led_ffc)
+# define MODELM_LED_CAPSLOCK MODELM_LED2
+# define MODELM_LED_SCROLLOCK MODELM_LED3
+# define MODELM_LED_NUMLOCK MODELM_LED1
+#elif defined(KEYBOARD_mschwingen_modelm_led_ws2812)
+#else
+# error one of MODELM_LEDS_FFC, MODELM_LEDS_WIRED or MODELM_LEDS_WS2812 must be set!
+#endif
+
+// 3* WS2812 LEDs instead of singlecolor GPIO LEDs
+#define RGB_DI_PIN B6
+#define RGBLED_NUM 3
+
+// disabled, needs PCB patch.
+//#define C6_AUDIO
+//#define NO_MUSIC_MODE
diff --git a/keyboards/mschwingen/modelm/keymaps/default/keymap.c b/keyboards/mschwingen/modelm/keymaps/default/keymap.c
new file mode 100644
index 0000000000..7f43746db9
--- /dev/null
+++ b/keyboards/mschwingen/modelm/keymaps/default/keymap.c
@@ -0,0 +1,86 @@
+/* Copyright 2019 ashpil
+ *
+ * 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 .
+ */
+#include QMK_KEYBOARD_H
+
+enum layers {
+ _BL0,
+ _BL1,
+ _FL,
+ _MS
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [_BL0] = LAYOUT( /* Base layer - Windows key instead of CapsLock, hold ESC for special functions */
+ LT(_FL,KC_ESC), KC_F1 , KC_F2 , KC_F3 , KC_F4 , KC_F5 , KC_F6 , KC_F7 , KC_F8 , KC_F9 , KC_F10, KC_F11 , KC_F12 , KC_PSCR, KC_SLCK, KC_PAUS,
+ KC_GRV , KC_1, KC_2 , KC_3 , KC_4 , KC_5 , KC_6 , KC_7 , KC_8 , KC_9 , KC_0 , KC_MINS, KC_EQL , KC_BSPC, KC_INS , KC_HOME, KC_PGUP, KC_NLCK, KC_PSLS, KC_PAST, KC_PMNS,
+ KC_TAB , KC_Q, KC_W , KC_E , KC_R , KC_T , KC_Y , KC_U , KC_I , KC_O , KC_P , KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL , KC_END , KC_PGDN, KC_P7, KC_P8 , KC_P9 , KC_PPLS,
+ KC_LWIN, KC_A, KC_S , KC_D , KC_F , KC_G , KC_H , KC_J , KC_K , KC_L , KC_SCLN, KC_QUOT, KC_NUHS, KC_ENT , KC_P4, KC_P5 , KC_P6 ,
+ KC_LSFT, KC_NUBS, KC_Z , KC_X , KC_C , KC_V , KC_B , KC_N , KC_M , KC_COMM, KC_DOT , KC_SLSH, KC_RSFT, KC_UP , KC_P1, KC_P2 , KC_P3 , KC_PENT,
+ KC_LCTL, KC_LALT, KC_SPC , KC_RALT, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT, KC_P0, KC_PDOT
+ ),
+
+ [_BL1] = LAYOUT( /* Base layer - standard layout without any special functions */
+ KC_ESC , KC_F1 , KC_F2 , KC_F3 , KC_F4 , KC_F5 , KC_F6 , KC_F7 , KC_F8 , KC_F9 , KC_F10 , KC_F11 , KC_F12 , KC_PSCR, KC_SLCK, KC_PAUS,
+ KC_GRV , KC_1 , KC_2 , KC_3 , KC_4 , KC_5 , KC_6 , KC_7 , KC_8 , KC_9 , KC_0 , KC_MINS, KC_EQL , KC_BSPC, KC_INS , KC_HOME, KC_PGUP, KC_NLCK, KC_PSLS, KC_PAST, KC_PMNS,
+ KC_TAB , KC_Q , KC_W , KC_E , KC_R , KC_T , KC_Y , KC_U , KC_I , KC_O , KC_P , KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL , KC_END , KC_PGDN, KC_P7, KC_P8 , KC_P9 , KC_PPLS,
+ KC_CAPS, KC_A , KC_S , KC_D , KC_F , KC_G , KC_H , KC_J , KC_K , KC_L , KC_SCLN, KC_QUOT, KC_NUHS, KC_ENT , KC_P4, KC_P5 , KC_P6 ,
+ KC_LSFT, KC_NUBS, KC_Z , KC_X , KC_C , KC_V , KC_B , KC_N , KC_M , KC_COMM, KC_DOT , KC_SLSH, KC_RSFT, KC_UP , KC_P1, KC_P2 , KC_P3 , KC_PENT,
+ KC_LCTL, KC_LALT, KC_SPC , KC_RALT, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT, KC_P0, KC_PDOT
+ ),
+
+ [_FL] = LAYOUT( /* special functions layer */
+ // F1: dyn. macro 1 play
+ // F2: dyn. macro 2 play
+ // F3: dyn. macro 1 record
+ // F4: dyn. macro 2 record
+ // F5: dyn. macro record stop
+ // Capslock: CapsLock (really!)
+ // ~: Key Lock
+ // Cursor: Media Pref / Next / Volume Up / Volume Down
+ // Space: Media Play / Pause
+ // m: enter mouse layer
+ _______, DM_PLY1, DM_PLY2, DM_REC1, DM_REC2, DM_RSTP, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ KC_LOCK, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ KC_CAPS, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, TG(_MS), _______, _______, _______, _______, KC_VOLU, _______, _______, _______, _______,
+ _______, _______, KC_MPLY, _______, _______, KC_MPRV, KC_VOLD, KC_MNXT, _______, _______
+ ),
+
+ [_MS] = LAYOUT( /* mouse key layer */
+ // Cursor: mouse, INS/HOME/PgUp: Mouse Accel, Del, End, PageDn: mouse buttons
+ TG(_MS), _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_ACL0, KC_ACL1, KC_ACL2, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_BTN1, KC_BTN3, KC_BTN2, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MS_U, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, KC_MS_L, KC_MS_D, KC_MS_R, _______, _______
+ )
+};
+
+void keyboard_post_init_user(void) {
+ // Customise these values to desired behaviour
+ //debug_enable=true;
+ //debug_matrix=true;
+ //debug_keyboard=true;
+ //debug_mouse=true;
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+ // If console is enabled, it will print the matrix position and status of each key pressed
+ dprintf("KL: kc: %u, col: %u, row: %u, pressed: %u\n", keycode, record->event.key.col, record->event.key.row, record->event.pressed);
+ return true;
+}
diff --git a/keyboards/mschwingen/modelm/led_ffc/rules.mk b/keyboards/mschwingen/modelm/led_ffc/rules.mk
new file mode 100644
index 0000000000..8b13789179
--- /dev/null
+++ b/keyboards/mschwingen/modelm/led_ffc/rules.mk
@@ -0,0 +1 @@
+
diff --git a/keyboards/mschwingen/modelm/led_wired/rules.mk b/keyboards/mschwingen/modelm/led_wired/rules.mk
new file mode 100644
index 0000000000..8b13789179
--- /dev/null
+++ b/keyboards/mschwingen/modelm/led_wired/rules.mk
@@ -0,0 +1 @@
+
diff --git a/keyboards/mschwingen/modelm/led_ws2812/rules.mk b/keyboards/mschwingen/modelm/led_ws2812/rules.mk
new file mode 100644
index 0000000000..424388fd8f
--- /dev/null
+++ b/keyboards/mschwingen/modelm/led_ws2812/rules.mk
@@ -0,0 +1,2 @@
+# variant for WS2812 LEDs
+SRC += ws2812.c
diff --git a/keyboards/mschwingen/modelm/matrix.c b/keyboards/mschwingen/modelm/matrix.c
new file mode 100644
index 0000000000..ef725a61eb
--- /dev/null
+++ b/keyboards/mschwingen/modelm/matrix.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2020 Michael Schwingen
+
+ * 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 .
+ */
+#include
+#include
+#include "util.h"
+#include "matrix.h"
+#include "debounce.h"
+#include "quantum.h"
+#include "spi_master.h"
+#include "print.h"
+#include "modelm.h"
+
+#define DEBUG 0
+
+#define SPI_TIMEOUT 100
+
+/* Keyboard Matrix Assignments */
+static uint16_t row_bits[MATRIX_ROWS] = {
+ 0x4000, 0x8000, 0x2000, 0x1000, 0x0800, 0x0400, 0x0100, 0x0200,
+ 0x0040, 0x0080, 0x0020, 0x0010, 0x0008, 0x0004, 0x0001, 0x0002};
+
+static const pin_t col_pins[MATRIX_COLS] = {D1, D4, D7, B4, F7, F6, F5, F4};
+
+static void select_col(uint8_t col) {
+ setPinOutput(col_pins[col]);
+ writePinLow(col_pins[col]);
+}
+
+static void unselect_col(uint8_t col) { setPinInputHigh(col_pins[col]); }
+
+static void unselect_cols(void) {
+ for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+ setPinInputHigh(col_pins[x]);
+ }
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) {
+ uint16_t row_data;
+ bool matrix_changed = false;
+
+ // Select col and wait for col selecton to stabilize
+ select_col(current_col);
+ matrix_io_delay();
+
+ writePinLow(SR_LOAD_PIN);
+ writePinHigh(SR_LOAD_PIN);
+
+ row_data = spi_read() << 8;
+ row_data |= spi_read();
+
+#if DEBUG
+ phex(~row_data);
+ uprint(" ");
+#endif
+ // For each row...
+ for (uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) {
+ // Store last value of row prior to reading
+ matrix_row_t last_row_value = current_matrix[row_index];
+ matrix_row_t current_row_value = last_row_value;
+
+ // Check row pin state
+ if ((row_data & row_bits[row_index]) == 0) {
+ // Pin LO, set col bit
+ current_row_value |= (MATRIX_ROW_SHIFTER << current_col);
+ } else {
+ // Pin HI, clear col bit
+ current_row_value &= ~(MATRIX_ROW_SHIFTER << current_col);
+ }
+
+ // Determine if the matrix changed state
+ if ((last_row_value != current_row_value)) {
+ matrix_changed = true;
+ current_matrix[row_index] = current_row_value;
+ }
+ }
+
+ // Unselect col
+ unselect_col(current_col);
+
+ return matrix_changed;
+}
+
+void matrix_init_custom(void) {
+ unselect_cols();
+
+ // set 4MHz SPI clock
+ SPSR = 0;
+ SPCR = _BV(SPE) | _BV(MSTR) | _BV(CPOL);
+}
+
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
+ bool changed = false;
+
+#if DEBUG
+ uprint("\r\nScan: ");
+#endif
+ // Set col, read rows
+ for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+ changed |= read_rows_on_col(current_matrix, current_col);
+ }
+ update_layer_leds();
+ return changed;
+}
diff --git a/keyboards/mschwingen/modelm/modelm.c b/keyboards/mschwingen/modelm/modelm.c
new file mode 100644
index 0000000000..5756a95170
--- /dev/null
+++ b/keyboards/mschwingen/modelm/modelm.c
@@ -0,0 +1,214 @@
+/*
+ * Copyright 2020 Michael Schwingen
+
+ * 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 .
+ */
+#include
+#include "modelm.h"
+#include "uart.h"
+#include "print.h"
+#include "sendchar.h"
+#include "ws2812.h"
+#include "modelm.h"
+#include "sleep_led.h"
+
+#ifdef UART_DEBUG
+# undef sendchar
+static int8_t capture_sendchar(uint8_t c) {
+ // sendchar(c);
+ uart_putchar(c);
+ return 0;
+}
+#endif
+
+static uint16_t blink_cycle_timer;
+static bool blink_state = false;
+static uint8_t isRecording = 0;
+
+#ifdef KEYBOARD_mschwingen_modelm_led_ws2812
+# if RGBLED_NUM < 3
+# error we need at least 3 RGB LEDs!
+# endif
+static cRGB led[RGBLED_NUM] = {{255, 255, 255}, {255, 255, 255}, {255, 255, 255}};
+
+# define BRIGHT 32
+# define DIM 6
+
+static const cRGB black = {.r = 0, .g = 0, .b = 0};
+
+static const cRGB green = {.r = 0, .g = BRIGHT, .b = 0};
+static const cRGB lgreen = {.r = 0, .g = DIM, .b = 0};
+
+static const cRGB red = {.r = BRIGHT, .g = 0, .b = 0};
+static const cRGB lred = {.r = DIM, .g = 0, .b = 0};
+
+static const cRGB blue = {.r = 0, .g = 0, .b = BRIGHT};
+static const cRGB lblue = {.r = 0, .g = 0, .b = DIM};
+
+static const cRGB turq = {.r = 0, .g = BRIGHT, .b = BRIGHT};
+static const cRGB lturq = {.r = 0, .g = DIM, .b = DIM};
+
+static const cRGB white = {.r = BRIGHT, .g = BRIGHT, .b = BRIGHT};
+
+static led_t led_state;
+static uint8_t layer;
+static uint8_t default_layer;
+#endif
+
+// we need our own sleep_led_* implementation to get callbacks on USB
+// suspend/resume in order to completely turn off WS2812 LEDs
+static bool suspend_active = false;
+void sleep_led_init(void) {}
+
+void sleep_led_toggle(void) {}
+
+void sleep_led_disable(void) {
+ suspend_active = false;
+ writePinHigh(QMK_LED);
+}
+
+void sleep_led_enable(void) {
+ suspend_active = true;
+ writePinLow(QMK_LED);
+#ifdef KEYBOARD_mschwingen_modelm_led_ws2812
+ led[0] = black;
+ led[1] = black;
+ led[2] = black;
+ ws2812_setleds(led, RGBLED_NUM);
+#endif
+}
+
+void keyboard_pre_init_kb(void) {
+#ifdef KEYBOARD_mschwingen_modelm_led_ws2812
+ ws2812_setleds(led, RGBLED_NUM);
+#else
+ /* Set status LEDs pins to output and Low (on) */
+ setPinOutput(MODELM_LED_CAPSLOCK);
+ setPinOutput(MODELM_LED_SCROLLOCK);
+ setPinOutput(MODELM_LED_NUMLOCK);
+ writePinLow(MODELM_LED_CAPSLOCK);
+ writePinLow(MODELM_LED_SCROLLOCK);
+ writePinLow(MODELM_LED_NUMLOCK);
+#endif
+ setPinOutput(QMK_LED);
+ writePinHigh(QMK_LED);
+ _delay_ms(50);
+#ifdef UART_DEBUG
+ uart_init(115200);
+ print_set_sendchar(capture_sendchar);
+ uprintf("\r\nHello world!\r\n");
+#endif
+
+ setPinOutput(SR_LOAD_PIN);
+ setPinOutput(SR_CLK_PIN);
+ setPinOutput(SR_DOUT_PIN); // MOSI - unused
+ writePinLow(SR_CLK_PIN);
+}
+
+#ifdef KEYBOARD_mschwingen_modelm_led_ws2812
+static void led_update_rgb(void) {
+ if (isRecording && blink_state) {
+ led[0] = white;
+ } else {
+ switch (default_layer) {
+ case 0:
+ led[0] = led_state.num_lock ? blue : lblue;
+ break;
+ case 1:
+ led[0] = led_state.num_lock ? green : black;
+ break;
+ }
+ }
+
+ led[1] = led_state.caps_lock ? green : black;
+
+ switch (layer) {
+ case 0:
+ case 1:
+ default:
+ led[2] = led_state.scroll_lock ? green : black;
+ break;
+ case 2:
+ led[2] = led_state.scroll_lock ? red : lred;
+ break;
+ case 3:
+ led[2] = led_state.scroll_lock ? turq : lturq;
+ break;
+ }
+ if (!suspend_active) {
+ ws2812_setleds(led, RGBLED_NUM);
+ }
+}
+
+bool led_update_kb(led_t state) {
+ dprintf("LED Update: %d %d %d", led_state.num_lock, led_state.caps_lock, led_state.scroll_lock);
+ led_state = state;
+ led_update_rgb();
+
+ return true;
+}
+
+void update_layer_leds(void) {
+ static uint8_t old_layer = 255;
+ static uint8_t old_default_layer = 255;
+
+ layer = biton32(layer_state);
+ default_layer = biton32(default_layer_state);
+
+ if (isRecording && timer_elapsed(blink_cycle_timer) > 150) {
+ blink_state = !blink_state;
+ blink_cycle_timer = timer_read();
+ old_layer = 255; // fallthrough next check
+ }
+
+ if (layer == old_layer && default_layer == old_default_layer) {
+ return;
+ }
+ old_layer = layer;
+ old_default_layer = default_layer;
+ dprintf("Layer change: %d %d", default_layer, layer);
+ led_update_rgb();
+}
+
+/*****************************************************************************/
+#else // classic LEDs on GPIO
+bool led_update_kb(led_t led_state) {
+ dprintf("LED Update: %d %d %d", led_state.num_lock, led_state.caps_lock, led_state.scroll_lock);
+
+ if (led_update_user(led_state)) {
+ if (!isRecording) writePin(MODELM_LED_NUMLOCK, !led_state.num_lock);
+ writePin(MODELM_LED_CAPSLOCK, !led_state.caps_lock);
+ writePin(MODELM_LED_SCROLLOCK, !led_state.scroll_lock);
+ }
+ return true;
+}
+
+void update_layer_leds(void) {
+ if (isRecording && timer_elapsed(blink_cycle_timer) > 150) {
+ blink_state = !blink_state;
+ blink_cycle_timer = timer_read();
+ writePin(MODELM_LED_NUMLOCK, blink_state);
+ }
+}
+
+#endif
+
+void dynamic_macro_record_start_user(void) {
+ isRecording++;
+ blink_cycle_timer = timer_read();
+}
+
+void dynamic_macro_record_end_user(int8_t direction) {
+ if (isRecording) isRecording--;
+}
diff --git a/keyboards/mschwingen/modelm/modelm.h b/keyboards/mschwingen/modelm/modelm.h
new file mode 100644
index 0000000000..04b6b61125
--- /dev/null
+++ b/keyboards/mschwingen/modelm/modelm.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Michael Schwingen
+
+ * 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 .
+ */
+
+#pragma once
+
+extern void update_layer_leds(void);
+
+#include "quantum.h"
+
+/* This a shortcut to help you visually see your layout.
+ * The first section contains "names" for physical keys of the keyboard
+ * and defines their position on the board.
+ * The second section defines position of the keys on the switch matrix
+ * (where COLUMNS and ROWS crosses). */
+
+/* universla layout for both 101 and 102-key versions */
+#define LAYOUT( \
+ K5A, K5B, K5C, K5D, K5E, K5F, K5G, K5H, K5I, K5J, K5K, K5L, K5M, K5N, K5O, K5P, \
+ \
+ K4A, K4B, K4C, K4D, K4E, K4F, K4G, K4H, K4I, K4J, K4K, K4L, K4M, K4N, K4O, K4P, K4Q, K4R, K4S, K4T, K4U, \
+ K3A, K3B, K3C, K3D, K3E, K3F, K3G, K3H, K3I, K3J, K3K, K3L, K3M, K3N, K3O, K3P, K3Q, K3R, K3S, K3T, K3U, \
+ K2A, K2B, K2C, K2D, K2E, K2F, K2G, K2H, K2I, K2J, K2K, K2L, K2M, K2N, K2O, K2P, K2Q, \
+ K1A, K1B, K1C, K1D, K1E, K1F, K1G, K1H, K1I, K1J, K1K, K1L, K1M, K1N, K1O, K1P, K1Q, K1R, \
+ K0A, K0B, K0C, K0D, K0E, K0F, K0G, K0H, K0I, K0J \
+) \
+ {/* COL0 ............ COL7 */ \
+ { K0D , KC_NO, KC_NO, K5O , K5N , KC_NO, KC_NO, K0B }, /* ROW0 */ \
+ { K0F , K5P , K1R , K3U , K3P , K4P , KC_NO, K1N }, \
+ { K4U , K4T , K1Q , K3T , K3Q , K4Q , K2Q , K0J }, \
+ { K0H , K4S , K1P , K3S , K5M , K4O , K2P , K0I }, \
+ { K0G , K4R , K1O , K3R , K5L , K3O , K2O , KC_NO }, \
+ { K1L , K2M , K2K , K3K , K4K , K4L , K3L , K2L }, \
+ { KC_NO, K1K , K2J , K3J , K4J , K5I , K5H , KC_NO }, \
+ { KC_NO, K1J , K2I , K3I , K4I , K4M , K3M , K5G }, \
+ { K1H , K1I , K2H , K3H , K4H , K4G , K3G , K2G }, \
+ { K0C , K2N , K3N , KC_NO, K5K , K5J , K4N , K5F }, \
+ { K1G , K1F , K2E , K3E , K4E , K4F , K3F , K2F }, \
+ { KC_NO, K1E , K2D , K3D , K4D , K5C , K5D , K5E }, \
+ { KC_NO, K1D , K2C , K3C , K4C , K5B , K2A , K1B }, \
+ { KC_NO, K1C , K2B , K3B , K4B , K4A , K3A , K5A }, \
+ { KC_NO, K1M , KC_NO, KC_NO, KC_NO, KC_NO, K1A , KC_NO }, \
+ { KC_NO, K0E , KC_NO, KC_NO, KC_NO, K0A , KC_NO, KC_NO }, /* ROW15 */ \
+}
+
diff --git a/keyboards/mschwingen/modelm/rules.mk b/keyboards/mschwingen/modelm/rules.mk
new file mode 100644
index 0000000000..f3af26eeeb
--- /dev/null
+++ b/keyboards/mschwingen/modelm/rules.mk
@@ -0,0 +1,43 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = lufa-dfu
+
+# Build Options
+# change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes # Mouse keys
+EXTRAKEY_ENABLE = yes # Audio control and System control
+CONSOLE_ENABLE = yes # Console for debug
+COMMAND_ENABLE = yes # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = no # USB Nkey Rollover
+BACKLIGHT_ENABLE = no # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no # Enable keyboard RGB underglow
+BLUETOOTH_ENABLE = no # Enable Bluetooth
+AUDIO_ENABLE = no # Audio output
+
+CUSTOM_MATRIX = lite
+KEY_LOCK_ENABLE = yes
+
+DYNAMIC_MACRO_ENABLE = yes
+
+UART_DEBUG = no
+
+SRC += matrix.c
+QUANTUM_LIB_SRC += $(COMMON_DIR)/uart.c \
+ spi_master.c
+
+OPT_DEFS += -DSLEEP_LED_ENABLE # we need our own sleep callbacks to turn of WS2812 LEDs
+
+LTO_ENABLE = yes
+
+ifeq ($(strip $(UART_DEBUG)), yes)
+ OPT_DEFS += -DUART_DEBUG
+endif
+
+DEFAULT_FOLDER = mschwingen/modelm/led_wired