From 3377813f5d2e08818474c4ea1b0029b776826be7 Mon Sep 17 00:00:00 2001
From: Cipulot <40441626+Cipulot@users.noreply.github.com>
Date: Tue, 30 Apr 2024 19:38:12 +0200
Subject: [PATCH] Add EC660C (#23171)

---
 keyboards/cipulot/ec_660c/config.h            |  66 +++++++++++
 keyboards/cipulot/ec_660c/halconf.h           |  21 ++++
 keyboards/cipulot/ec_660c/info.json           | 111 ++++++++++++++++++
 .../cipulot/ec_660c/keymaps/default/keymap.c  |  43 +++++++
 .../cipulot/ec_660c/keymaps/via/keymap.c      |  43 +++++++
 .../cipulot/ec_660c/keymaps/via/rules.mk      |   1 +
 keyboards/cipulot/ec_660c/mcuconf.h           |  22 ++++
 keyboards/cipulot/ec_660c/post_rules.mk       |   3 +
 keyboards/cipulot/ec_660c/readme.md           |  26 ++++
 keyboards/cipulot/ec_660c/rules.mk            |   5 +
 10 files changed, 341 insertions(+)
 create mode 100644 keyboards/cipulot/ec_660c/config.h
 create mode 100644 keyboards/cipulot/ec_660c/halconf.h
 create mode 100644 keyboards/cipulot/ec_660c/info.json
 create mode 100644 keyboards/cipulot/ec_660c/keymaps/default/keymap.c
 create mode 100644 keyboards/cipulot/ec_660c/keymaps/via/keymap.c
 create mode 100644 keyboards/cipulot/ec_660c/keymaps/via/rules.mk
 create mode 100644 keyboards/cipulot/ec_660c/mcuconf.h
 create mode 100644 keyboards/cipulot/ec_660c/post_rules.mk
 create mode 100644 keyboards/cipulot/ec_660c/readme.md
 create mode 100644 keyboards/cipulot/ec_660c/rules.mk

diff --git a/keyboards/cipulot/ec_660c/config.h b/keyboards/cipulot/ec_660c/config.h
new file mode 100644
index 000000000000..9e883c40da28
--- /dev/null
+++ b/keyboards/cipulot/ec_660c/config.h
@@ -0,0 +1,66 @@
+/* Copyright 2023 Cipulot
+ *
+ * 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 3 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 MATRIX_ROWS 5
+#define MATRIX_COLS 15
+
+#define MATRIX_ROW_PINS \
+    { B1, B10, B0, A1, A0 }
+
+#define AMUX_COUNT 2
+#define AMUX_MAX_COLS_COUNT 8
+
+#define AMUX_EN_PINS \
+    { B7, B6 }
+
+#define AMUX_SEL_PINS \
+    { B5, B4, B3 }
+
+#define AMUX_COL_CHANNELS_SIZES \
+    { 8, 7 }
+
+#define AMUX_0_COL_CHANNELS \
+    { 3, 0, 1, 2, 4, 6, 7, 5 }
+
+#define AMUX_1_COL_CHANNELS \
+    { 3, 0, 1, 2, 4, 6, 7 }
+
+#define AMUX_COL_CHANNELS AMUX_0_COL_CHANNELS, AMUX_1_COL_CHANNELS
+
+#define DISCHARGE_PIN A5
+#define ANALOG_PORT A4
+
+#define DEFAULT_ACTUATION_MODE 0
+#define DEFAULT_MODE_0_ACTUATION_LEVEL 550
+#define DEFAULT_MODE_0_RELEASE_LEVEL 500
+#define DEFAULT_MODE_1_INITIAL_DEADZONE_OFFSET DEFAULT_MODE_0_ACTUATION_LEVEL
+#define DEFAULT_MODE_1_ACTUATION_OFFSET 70
+#define DEFAULT_MODE_1_RELEASE_OFFSET 70
+#define DEFAULT_EXTREMUM 1023
+#define EXPECTED_NOISE_FLOOR 0
+#define NOISE_FLOOR_THRESHOLD 50
+#define BOTTOMING_CALIBRATION_THRESHOLD 100
+#define DEFAULT_NOISE_FLOOR_SAMPLING_COUNT 30
+#define DEFAULT_BOTTOMING_READING 1023
+#define DEFAULT_CALIBRATION_STARTER true
+
+#define DISCHARGE_TIME 10
+
+// #define DEBUG_MATRIX_SCAN_RATE
+
+#define EECONFIG_KB_DATA_SIZE 159
diff --git a/keyboards/cipulot/ec_660c/halconf.h b/keyboards/cipulot/ec_660c/halconf.h
new file mode 100644
index 000000000000..835d43b6a0af
--- /dev/null
+++ b/keyboards/cipulot/ec_660c/halconf.h
@@ -0,0 +1,21 @@
+/* Copyright 2023 Cipulot
+ *
+ * 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 3 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_ADC TRUE
+
+#include_next <halconf.h>
diff --git a/keyboards/cipulot/ec_660c/info.json b/keyboards/cipulot/ec_660c/info.json
new file mode 100644
index 000000000000..32ac397b6bfe
--- /dev/null
+++ b/keyboards/cipulot/ec_660c/info.json
@@ -0,0 +1,111 @@
+{
+    "manufacturer": "Cipulot",
+    "keyboard_name": "EC 660C",
+    "maintainer": "Cipulot",
+    "bootloader": "stm32-dfu",
+    "build": {
+        "lto": true
+    },
+    "diode_direction": "COL2ROW",
+    "features": {
+        "bootmagic": false,
+        "console": true,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": true
+    },
+    "indicators": {
+        "caps_lock": "B14",
+        "scroll_lock": "B15"
+    },
+    "processor": "STM32F401",
+    "qmk": {
+        "locking": {
+            "enabled": true,
+            "resync": true
+        }
+    },
+    "usb": {
+        "device_version": "0.0.1",
+        "pid": "0x6BA6",
+        "shared_endpoint": {
+            "keyboard": true
+        },
+        "vid": "0x6369"
+    },
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"label": "0,0", "matrix": [0, 0], "x": 0, "y": 0},
+                {"label": "0,1", "matrix": [0, 1], "x": 1, "y": 0},
+                {"label": "0,2", "matrix": [0, 2], "x": 2, "y": 0},
+                {"label": "0,3", "matrix": [0, 3], "x": 3, "y": 0},
+                {"label": "0,4", "matrix": [0, 4], "x": 4, "y": 0},
+                {"label": "0,5", "matrix": [0, 5], "x": 5, "y": 0},
+                {"label": "0,6", "matrix": [0, 6], "x": 6, "y": 0},
+                {"label": "0,7", "matrix": [0, 7], "x": 7, "y": 0},
+                {"label": "0,8", "matrix": [0, 8], "x": 8, "y": 0},
+                {"label": "0,9", "matrix": [0, 9], "x": 9, "y": 0},
+                {"label": "0,10", "matrix": [0, 10], "x": 10, "y": 0},
+                {"label": "0,11", "matrix": [0, 11], "x": 11, "y": 0},
+                {"label": "0,12", "matrix": [0, 12], "x": 12, "y": 0},
+                {"label": "0,13", "matrix": [0, 13], "x": 13, "y": 0},
+                {"label": "0,14", "matrix": [0, 14], "x": 14, "y": 0},
+                {"label": "1,14", "matrix": [1, 14], "x": 15.5, "y": 0},
+                {"label": "1,0", "matrix": [1, 0], "x": 0, "y": 1, "w": 1.5},
+                {"label": "1,1", "matrix": [1, 1], "x": 1.5, "y": 1},
+                {"label": "1,2", "matrix": [1, 2], "x": 2.5, "y": 1},
+                {"label": "1,3", "matrix": [1, 3], "x": 3.5, "y": 1},
+                {"label": "1,4", "matrix": [1, 4], "x": 4.5, "y": 1},
+                {"label": "1,5", "matrix": [1, 5], "x": 5.5, "y": 1},
+                {"label": "1,6", "matrix": [1, 6], "x": 6.5, "y": 1},
+                {"label": "1,7", "matrix": [1, 7], "x": 7.5, "y": 1},
+                {"label": "1,8", "matrix": [1, 8], "x": 8.5, "y": 1},
+                {"label": "1,9", "matrix": [1, 9], "x": 9.5, "y": 1},
+                {"label": "1,10", "matrix": [1, 10], "x": 10.5, "y": 1},
+                {"label": "1,11", "matrix": [1, 11], "x": 11.5, "y": 1},
+                {"label": "1,12", "matrix": [1, 12], "x": 12.5, "y": 1},
+                {"label": "1,13", "matrix": [1, 13], "x": 13.5, "y": 1, "w": 1.5},
+                {"label": "2,14", "matrix": [2, 14], "x": 15.5, "y": 1},
+                {"label": "2,0", "matrix": [2, 0], "x": 0, "y": 2, "w": 1.75},
+                {"label": "2,1", "matrix": [2, 1], "x": 1.75, "y": 2},
+                {"label": "2,2", "matrix": [2, 2], "x": 2.75, "y": 2},
+                {"label": "2,3", "matrix": [2, 3], "x": 3.75, "y": 2},
+                {"label": "2,4", "matrix": [2, 4], "x": 4.75, "y": 2},
+                {"label": "2,5", "matrix": [2, 5], "x": 5.75, "y": 2},
+                {"label": "2,6", "matrix": [2, 6], "x": 6.75, "y": 2},
+                {"label": "2,7", "matrix": [2, 7], "x": 7.75, "y": 2},
+                {"label": "2,8", "matrix": [2, 8], "x": 8.75, "y": 2},
+                {"label": "2,9", "matrix": [2, 9], "x": 9.75, "y": 2},
+                {"label": "2,10", "matrix": [2, 10], "x": 10.75, "y": 2},
+                {"label": "2,11", "matrix": [2, 11], "x": 11.75, "y": 2},
+                {"label": "2,12", "matrix": [2, 12], "x": 12.75, "y": 2},
+                {"label": "2,13", "matrix": [2, 13], "x": 13.75, "y": 2, "w": 1.25},
+                {"label": "3,0", "matrix": [3, 0], "x": 0, "y": 3, "w": 1.25},
+                {"label": "3,1", "matrix": [3, 1], "x": 1.25, "y": 3},
+                {"label": "3,2", "matrix": [3, 2], "x": 2.25, "y": 3},
+                {"label": "3,3", "matrix": [3, 3], "x": 3.25, "y": 3},
+                {"label": "3,4", "matrix": [3, 4], "x": 4.25, "y": 3},
+                {"label": "3,5", "matrix": [3, 5], "x": 5.25, "y": 3},
+                {"label": "3,6", "matrix": [3, 6], "x": 6.25, "y": 3},
+                {"label": "3,7", "matrix": [3, 7], "x": 7.25, "y": 3},
+                {"label": "3,8", "matrix": [3, 8], "x": 8.25, "y": 3},
+                {"label": "3,9", "matrix": [3, 9], "x": 9.25, "y": 3},
+                {"label": "3,10", "matrix": [3, 10], "x": 10.25, "y": 3},
+                {"label": "3,11", "matrix": [3, 11], "x": 11.25, "y": 3},
+                {"label": "3,12", "matrix": [3, 12], "x": 12.25, "y": 3, "w": 2.25},
+                {"label": "3,13", "matrix": [3, 13], "x": 14.5, "y": 3},
+                {"label": "4,0", "matrix": [4, 0], "x": 0, "y": 4, "w": 1.25},
+                {"label": "4,1", "matrix": [4, 1], "x": 1.25, "y": 4, "w": 1.25},
+                {"label": "4,2", "matrix": [4, 2], "x": 2.5, "y": 4, "w": 1.25},
+                {"label": "4,6", "matrix": [4, 6], "x": 3.75, "y": 4, "w": 6},
+                {"label": "4,9", "matrix": [4, 9], "x": 9.75, "y": 4, "w": 1.25},
+                {"label": "4,10", "matrix": [4, 10], "x": 11, "y": 4, "w": 1.25},
+                {"label": "4,11", "matrix": [4, 11], "x": 12.25, "y": 4, "w": 1.25},
+                {"label": "4,12", "matrix": [4, 12], "x": 13.5, "y": 4},
+                {"label": "4,13", "matrix": [4, 13], "x": 14.5, "y": 4},
+                {"label": "4,14", "matrix": [4, 14], "x": 15.5, "y": 4}
+            ]
+        }
+    }
+}
diff --git a/keyboards/cipulot/ec_660c/keymaps/default/keymap.c b/keyboards/cipulot/ec_660c/keymaps/default/keymap.c
new file mode 100644
index 000000000000..5d82bdc3abdf
--- /dev/null
+++ b/keyboards/cipulot/ec_660c/keymaps/default/keymap.c
@@ -0,0 +1,43 @@
+/* Copyright 2023 Cipulot
+ *
+ * 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 3 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/>.
+ */
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    // clang-format off
+    [0] = LAYOUT(
+        KC_ESC,   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_BSPC,   KC_INS,
+        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_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_LSFT,  KC_BSLS,  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_LCTL,  KC_LGUI,  KC_LALT,                KC_SPC,                KC_RALT, KC_RCTL,  MO(1),                        KC_LEFT,  KC_DOWN,  KC_RGHT
+    ),
+    [1] = LAYOUT(
+        KC_GRV,   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_CAPS,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  KC_PSCR,  KC_SCRL,  KC_PAUS,  _______,  _______,  _______,            _______,
+        _______,  KC_VOLD,  KC_VOLU,  KC_MUTE,  _______,  _______,  _______,  _______,  KC_HOME,  KC_PGUP,  _______,  _______,  _______,  _______,
+        _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  KC_END,   KC_PGDN,  _______,  _______,            _______,
+        _______,  _______,  _______,                      _______,                      _______,  MO(2),    _______,                      _______,  _______,  _______
+    ),
+    [2] = LAYOUT(
+        QK_BOOT,  NK_TOGG,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,
+        _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,            _______,
+        _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,
+        _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,            _______,
+        _______,  _______,  _______,                      _______,                      _______,  _______,  _______,                      _______,  _______,  _______
+    )
+    // clang-format on
+};
diff --git a/keyboards/cipulot/ec_660c/keymaps/via/keymap.c b/keyboards/cipulot/ec_660c/keymaps/via/keymap.c
new file mode 100644
index 000000000000..5d82bdc3abdf
--- /dev/null
+++ b/keyboards/cipulot/ec_660c/keymaps/via/keymap.c
@@ -0,0 +1,43 @@
+/* Copyright 2023 Cipulot
+ *
+ * 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 3 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/>.
+ */
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    // clang-format off
+    [0] = LAYOUT(
+        KC_ESC,   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_BSPC,   KC_INS,
+        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_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_LSFT,  KC_BSLS,  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_LCTL,  KC_LGUI,  KC_LALT,                KC_SPC,                KC_RALT, KC_RCTL,  MO(1),                        KC_LEFT,  KC_DOWN,  KC_RGHT
+    ),
+    [1] = LAYOUT(
+        KC_GRV,   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_CAPS,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  KC_PSCR,  KC_SCRL,  KC_PAUS,  _______,  _______,  _______,            _______,
+        _______,  KC_VOLD,  KC_VOLU,  KC_MUTE,  _______,  _______,  _______,  _______,  KC_HOME,  KC_PGUP,  _______,  _______,  _______,  _______,
+        _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  KC_END,   KC_PGDN,  _______,  _______,            _______,
+        _______,  _______,  _______,                      _______,                      _______,  MO(2),    _______,                      _______,  _______,  _______
+    ),
+    [2] = LAYOUT(
+        QK_BOOT,  NK_TOGG,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,
+        _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,            _______,
+        _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,
+        _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,  _______,            _______,
+        _______,  _______,  _______,                      _______,                      _______,  _______,  _______,                      _______,  _______,  _______
+    )
+    // clang-format on
+};
diff --git a/keyboards/cipulot/ec_660c/keymaps/via/rules.mk b/keyboards/cipulot/ec_660c/keymaps/via/rules.mk
new file mode 100644
index 000000000000..1e5b99807cb7
--- /dev/null
+++ b/keyboards/cipulot/ec_660c/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
diff --git a/keyboards/cipulot/ec_660c/mcuconf.h b/keyboards/cipulot/ec_660c/mcuconf.h
new file mode 100644
index 000000000000..fa3c955e0d89
--- /dev/null
+++ b/keyboards/cipulot/ec_660c/mcuconf.h
@@ -0,0 +1,22 @@
+/* Copyright 2023 Cipulot
+ *
+ * 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 3 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_ADC_USE_ADC1
+#define STM32_ADC_USE_ADC1 TRUE
diff --git a/keyboards/cipulot/ec_660c/post_rules.mk b/keyboards/cipulot/ec_660c/post_rules.mk
new file mode 100644
index 000000000000..d726a112a8c7
--- /dev/null
+++ b/keyboards/cipulot/ec_660c/post_rules.mk
@@ -0,0 +1,3 @@
+ifeq ($(strip $(VIA_ENABLE)), yes)
+    SRC += keyboards/cipulot/common/via_ec.c
+endif
diff --git a/keyboards/cipulot/ec_660c/readme.md b/keyboards/cipulot/ec_660c/readme.md
new file mode 100644
index 000000000000..c01bb3252e02
--- /dev/null
+++ b/keyboards/cipulot/ec_660c/readme.md
@@ -0,0 +1,26 @@
+# EC660C
+
+![EC660C PCB](https://i.imgur.com/HfTvrkph.jpg)
+
+Replacement PCB for the  Leopold FC660C.
+
+* Keyboard Maintainer: [cipulot](https://github.com/cipulot)
+* Hardware Supported: EC660C PCB
+* Hardware Availability: TBD
+
+Make example for this keyboard (after setting up your build environment):
+
+    make cipulot/ec_660c:default
+
+Flashing example for this keyboard:
+
+    make cipulot/ec_660c:default:flash
+
+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).
+
+## Bootloader
+
+Enter the bootloader in 2 ways:
+
+* **Physical reset**: Long short the exposed pads on the top of the PCB
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
diff --git a/keyboards/cipulot/ec_660c/rules.mk b/keyboards/cipulot/ec_660c/rules.mk
new file mode 100644
index 000000000000..ce525670a68b
--- /dev/null
+++ b/keyboards/cipulot/ec_660c/rules.mk
@@ -0,0 +1,5 @@
+CUSTOM_MATRIX = lite
+ANALOG_DRIVER_REQUIRED = yes
+VPATH += keyboards/cipulot/common
+SRC += matrix.c ec_board.c ec_switch_matrix.c
+OPT = 3