diff --git a/keyboards/cipulot/ec_menhir/config.h b/keyboards/cipulot/ec_menhir/config.h
new file mode 100644
index 0000000000..bd0094c7f1
--- /dev/null
+++ b/keyboards/cipulot/ec_menhir/config.h
@@ -0,0 +1,61 @@
+/* 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 .
+ */
+
+#pragma once
+
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 12
+
+#define MATRIX_ROW_PINS \
+ { A0, A3, A2, A1 }
+
+#define AMUX_COUNT 1
+#define AMUX_MAX_COLS_COUNT 12
+
+#define AMUX_EN_PINS \
+ { C10 }
+
+#define AMUX_SEL_PINS \
+ { C11, B3, A15, A14 }
+
+#define AMUX_COL_CHANNELS_SIZES \
+ { 12 }
+
+#define AMUX_0_COL_CHANNELS \
+ { 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10 }
+
+#define AMUX_COL_CHANNELS AMUX_0_COL_CHANNELS
+
+#define DISCHARGE_PIN A4
+#define ANALOG_PORT A5
+
+#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 50
+#define DEFAULT_NOISE_FLOOR_SAMPLING_COUNT 30
+#define DEFAULT_BOTTOMING_READING 1023
+#define DEFAULT_CALIBRATION_STARTER true
+
+#define DISCHARGE_TIME 10
+
+#define EECONFIG_KB_DATA_SIZE 105
diff --git a/keyboards/cipulot/ec_menhir/halconf.h b/keyboards/cipulot/ec_menhir/halconf.h
new file mode 100644
index 0000000000..835d43b6a0
--- /dev/null
+++ b/keyboards/cipulot/ec_menhir/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 .
+ */
+
+#pragma once
+
+#define HAL_USE_ADC TRUE
+
+#include_next
diff --git a/keyboards/cipulot/ec_menhir/info.json b/keyboards/cipulot/ec_menhir/info.json
new file mode 100644
index 0000000000..4cc6a84525
--- /dev/null
+++ b/keyboards/cipulot/ec_menhir/info.json
@@ -0,0 +1,87 @@
+{
+ "manufacturer": "Cipulot",
+ "keyboard_name": "EC Menhir",
+ "maintainer": "Cipulot",
+ "bootloader": "stm32-dfu",
+ "build": {
+ "lto": true
+ },
+ "diode_direction": "COL2ROW",
+ "eeprom": {
+ "driver": "wear_leveling",
+ "wear_leveling": {
+ "driver": "embedded_flash",
+ "backing_size": 4096
+ }
+ },
+ "features": {
+ "bootmagic": false,
+ "console": true,
+ "extrakey": true,
+ "mousekey": true,
+ "nkro": true
+ },
+ "processor": "STM32G431",
+ "qmk": {
+ "locking": {
+ "enabled": true,
+ "resync": true
+ }
+ },
+ "usb": {
+ "device_version": "0.0.1",
+ "pid": "0x6BB8",
+ "shared_endpoint": {
+ "keyboard": true
+ },
+ "vid": "0x6369"
+ },
+ "layouts": {
+ "LAYOUT": {
+ "layout": [
+ {"matrix": [0, 0], "x": 0, "y": 0},
+ {"matrix": [0, 1], "x": 1, "y": 0},
+ {"matrix": [0, 2], "x": 2, "y": 0},
+ {"matrix": [0, 3], "x": 3, "y": 0},
+ {"matrix": [0, 4], "x": 4, "y": 0},
+ {"matrix": [0, 5], "x": 5, "y": 0},
+ {"matrix": [0, 6], "x": 6, "y": 0},
+ {"matrix": [0, 7], "x": 7, "y": 0},
+ {"matrix": [0, 8], "x": 8, "y": 0},
+ {"matrix": [0, 9], "x": 9, "y": 0},
+ {"matrix": [0, 10], "x": 10, "y": 0},
+ {"matrix": [0, 11], "x": 11, "y": 0, "w": 1.75},
+ {"matrix": [1, 0], "x": 0, "y": 1, "w": 1.25},
+ {"matrix": [1, 1], "x": 1.25, "y": 1},
+ {"matrix": [1, 2], "x": 2.25, "y": 1},
+ {"matrix": [1, 3], "x": 3.25, "y": 1},
+ {"matrix": [1, 4], "x": 4.25, "y": 1},
+ {"matrix": [1, 5], "x": 5.25, "y": 1},
+ {"matrix": [1, 6], "x": 6.25, "y": 1},
+ {"matrix": [1, 7], "x": 7.25, "y": 1},
+ {"matrix": [1, 8], "x": 8.25, "y": 1},
+ {"matrix": [1, 9], "x": 9.25, "y": 1},
+ {"matrix": [1, 10], "x": 10.25, "y": 1},
+ {"matrix": [1, 11], "x": 11.25, "y": 1, "w": 1.5},
+ {"matrix": [2, 0], "x": 0.5, "y": 2, "w": 1.25},
+ {"matrix": [2, 1], "x": 1.75, "y": 2},
+ {"matrix": [2, 2], "x": 2.75, "y": 2},
+ {"matrix": [2, 3], "x": 3.75, "y": 2},
+ {"matrix": [2, 4], "x": 4.75, "y": 2},
+ {"matrix": [2, 5], "x": 5.75, "y": 2},
+ {"matrix": [2, 6], "x": 6.75, "y": 2},
+ {"matrix": [2, 7], "x": 7.75, "y": 2},
+ {"matrix": [2, 8], "x": 8.75, "y": 2},
+ {"matrix": [2, 9], "x": 9.75, "y": 2},
+ {"matrix": [2, 10], "x": 10.75, "y": 2, "w": 1.5},
+ {"matrix": [3, 1], "x": 1.75, "y": 3, "w": 1.25},
+ {"matrix": [3, 2], "x": 3, "y": 3},
+ {"matrix": [3, 4], "x": 4, "y": 3, "w": 2},
+ {"matrix": [3, 5], "x": 6, "y": 3},
+ {"matrix": [3, 6], "x": 7, "y": 3, "w": 2},
+ {"matrix": [3, 8], "x": 9, "y": 3},
+ {"matrix": [3, 9], "x": 10, "y": 3}
+ ]
+ }
+ }
+}
diff --git a/keyboards/cipulot/ec_menhir/keymaps/default/keymap.c b/keyboards/cipulot/ec_menhir/keymaps/default/keymap.c
new file mode 100644
index 0000000000..e6780e6439
--- /dev/null
+++ b/keyboards/cipulot/ec_menhir/keymaps/default/keymap.c
@@ -0,0 +1,27 @@
+/* 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 .
+ */
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ // clang-format off
+ [0] = LAYOUT(
+ KC_ESC, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,
+ KC_TAB, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_ENT,
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_RSFT,
+ KC_LALT, KC_LGUI, MO(1), KC_SPC, KC_SPC, MO(2), KC_LCTL)
+ // clang-format on
+};
diff --git a/keyboards/cipulot/ec_menhir/keymaps/via/keymap.c b/keyboards/cipulot/ec_menhir/keymaps/via/keymap.c
new file mode 100644
index 0000000000..e6780e6439
--- /dev/null
+++ b/keyboards/cipulot/ec_menhir/keymaps/via/keymap.c
@@ -0,0 +1,27 @@
+/* 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 .
+ */
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ // clang-format off
+ [0] = LAYOUT(
+ KC_ESC, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,
+ KC_TAB, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_ENT,
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_RSFT,
+ KC_LALT, KC_LGUI, MO(1), KC_SPC, KC_SPC, MO(2), KC_LCTL)
+ // clang-format on
+};
diff --git a/keyboards/cipulot/ec_menhir/keymaps/via/rules.mk b/keyboards/cipulot/ec_menhir/keymaps/via/rules.mk
new file mode 100644
index 0000000000..1e5b99807c
--- /dev/null
+++ b/keyboards/cipulot/ec_menhir/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
diff --git a/keyboards/cipulot/ec_menhir/mcuconf.h b/keyboards/cipulot/ec_menhir/mcuconf.h
new file mode 100644
index 0000000000..b120f145c5
--- /dev/null
+++ b/keyboards/cipulot/ec_menhir/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 .
+ */
+
+#pragma once
+
+#include_next
+
+#undef STM32_ADC_USE_ADC2
+#define STM32_ADC_USE_ADC2 TRUE
diff --git a/keyboards/cipulot/ec_menhir/post_rules.mk b/keyboards/cipulot/ec_menhir/post_rules.mk
new file mode 100644
index 0000000000..d726a112a8
--- /dev/null
+++ b/keyboards/cipulot/ec_menhir/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_menhir/readme.md b/keyboards/cipulot/ec_menhir/readme.md
new file mode 100644
index 0000000000..234b1ab9d0
--- /dev/null
+++ b/keyboards/cipulot/ec_menhir/readme.md
@@ -0,0 +1,26 @@
+# EC Menhir
+
+![EC Menhir](https://i.imgur.com/m0feb2Zh.png)
+
+EC version of the Menhir.
+
+* Keyboard Maintainer: [cipulot](https://github.com/cipulot)
+* Hardware Supported: EC Menhir
+* Hardware Availability: [fruitykeeb](https://fruitykeeb.xyz/)
+
+Make example for this keyboard (after setting up your build environment):
+
+ make cipulot/ec_menhir:default
+
+Flashing example for this keyboard:
+
+ make cipulot/ec_menhir: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 Boot0 pins**: Short the Boot0 pins on the back of the PCB while plugging in the keyboard
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
diff --git a/keyboards/cipulot/ec_menhir/rules.mk b/keyboards/cipulot/ec_menhir/rules.mk
new file mode 100644
index 0000000000..e7d73cefc9
--- /dev/null
+++ b/keyboards/cipulot/ec_menhir/rules.mk
@@ -0,0 +1,4 @@
+CUSTOM_MATRIX = lite
+ANALOG_DRIVER_REQUIRED = yes
+VPATH += keyboards/cipulot/common
+SRC += matrix.c ec_board.c ec_switch_matrix.c