diff --git a/keyboards/sthlmkb/litl/info.json b/keyboards/sthlmkb/litl/info.json
new file mode 100644
index 0000000000..8340eb8372
--- /dev/null
+++ b/keyboards/sthlmkb/litl/info.json
@@ -0,0 +1,49 @@
+{
+ "manufacturer": "STHLM kb",
+ "keyboard_name": "litl",
+ "url": "https://github.com/mohoyt/litl",
+ "maintainer": "mohoyt",
+ "development_board": "promicro",
+ "diode_direction": "ROW2COL",
+ "features": {
+ "bootmagic": false,
+ "command": false,
+ "console": false,
+ "extrakey": true,
+ "debug": false,
+ "mousekey": false,
+ "encoder": true,
+ "oled": true
+ },
+ "matrix_pins": {
+ "cols": ["F6", "F7", "B1", "B3", "B2", "B6"],
+ "rows": ["B4", "B5", "D4", "C6", "D7", "E6", "F5", "F4"]
+ },
+ "usb": {
+ "device_version": "1.0.0",
+ "pid": "0x5353",
+ "vid": "0x8086"
+ },
+ "layouts": {
+ "LAYOUT_all": {
+ "layout": [{"label":"1.5u", "x":0, "y":0, "w":1.5}, {"x":1.5, "y":0}, {"x":2.5, "y":0}, {"x":3.5, "y":0}, {"x":4.5, "y":0}, {"x":5.5, "y":0}, {"x":6.5, "y":0}, {"x":7.5, "y":0}, {"x":8.5, "y":0}, {"x":9.5, "y":0}, {"x":10.5, "y":0}, {"label":"1.5u", "x":11.5, "y":0, "w":1.5}, {"label":"1.75u", "x":0, "y":1, "w":1.75}, {"x":1.75, "y":1}, {"x":2.75, "y":1}, {"x":3.75, "y":1}, {"x":4.75, "y":1}, {"x":5.75, "y":1}, {"x":6.75, "y":1}, {"x":7.75, "y":1}, {"x":8.75, "y":1}, {"x":9.75, "y":1}, {"x":10.75, "y":1}, {"label":"1.25u", "x":11.75, "y":1, "w":1.25}, {"label":"1.25u", "x":0, "y":2, "w":1.25}, {"x":1.25, "y":2}, {"x":2.25, "y":2}, {"x":3.25, "y":2}, {"x":4.25, "y":2}, {"x":5.25, "y":2}, {"x":6.25, "y":2}, {"x":7.25, "y":2}, {"x":8.25, "y":2}, {"x":9.25, "y":2}, {"x":10.25, "y":2}, {"label":"1.75u", "x":11.25, "y":2, "w":1.75}, {"label":"1.25u", "x":0, "y":3, "w":1.25}, {"label":"1u", "x":1.25, "y":3}, {"label":"1.25u", "x":2.25, "y":3, "w":1.25}, {"label":"2.25u", "x":3.5, "y":3, "w":2.25}, {"label":"1u", "x":5.75, "y":3}, {"label":"2.75u", "x":6.75, "y":3, "w":2.75}, {"label":"1.25u", "x":9.5, "y":3, "w":1.25}, {"label":"1u", "x":10.75, "y":3}, {"label":"1.25u", "x":11.75, "y":3, "w":1.25}, {"label":"Enc1", "x":14, "y":3}, {"label":"Enc2", "x":15, "y":3} ]
+ },
+ "LAYOUT_ansi_split_lshift": {
+ "layout": [{"label":"1.5u", "x":0, "y":0, "w":1.5}, {"x":1.5, "y":0}, {"x":2.5, "y":0}, {"x":3.5, "y":0}, {"x":4.5, "y":0}, {"x":5.5, "y":0}, {"x":6.5, "y":0}, {"x":7.5, "y":0}, {"x":8.5, "y":0}, {"x":9.5, "y":0}, {"x":10.5, "y":0}, {"label":"1.5u", "x":11.5, "y":0, "w":1.5}, {"label":"1.75u", "x":0, "y":1, "w":1.75}, {"x":1.75, "y":1}, {"x":2.75, "y":1}, {"x":3.75, "y":1}, {"x":4.75, "y":1}, {"x":5.75, "y":1}, {"x":6.75, "y":1}, {"x":7.75, "y":1}, {"x":8.75, "y":1}, {"x":9.75, "y":1}, {"label":"2.25u", "x":10.75, "y":1, "w":2.25}, {"label":"1.25u", "x":0, "y":2, "w":1.25}, {"x":1.25, "y":2}, {"x":2.25, "y":2}, {"x":3.25, "y":2}, {"x":4.25, "y":2}, {"x":5.25, "y":2}, {"x":6.25, "y":2}, {"x":7.25, "y":2}, {"x":8.25, "y":2}, {"x":9.25, "y":2}, {"x":10.25, "y":2}, {"label":"1.75u", "x":11.25, "y":2, "w":1.75}, {"label":"1.25u", "x":0, "y":3, "w":1.25}, {"label":"1u", "x":1.25, "y":3}, {"label":"1u", "x":2.25, "y":3}, {"label":"6.25u", "x":3.25, "y":3, "w":6.25}, {"label":"1.25u", "x":9.5, "y":3, "w":1.25}, {"label":"1u", "x":10.75, "y":3}, {"label":"1.25u", "x":11.75, "y":3, "w":1.25}, {"label":"Enc1", "x":14, "y":3}, {"label":"Enc2", "x":15, "y":3}]
+ },
+ "LAYOUT_ansi_split_space": {
+ "layout": [{"label":"1.5u", "x":0, "y":0, "w":1.5}, {"x":1.5, "y":0}, {"x":2.5, "y":0}, {"x":3.5, "y":0}, {"x":4.5, "y":0}, {"x":5.5, "y":0}, {"x":6.5, "y":0}, {"x":7.5, "y":0}, {"x":8.5, "y":0}, {"x":9.5, "y":0}, {"x":10.5, "y":0}, {"label":"1.5u", "x":11.5, "y":0, "w":1.5}, {"label":"1.75u", "x":0, "y":1, "w":1.75}, {"x":1.75, "y":1}, {"x":2.75, "y":1}, {"x":3.75, "y":1}, {"x":4.75, "y":1}, {"x":5.75, "y":1}, {"x":6.75, "y":1}, {"x":7.75, "y":1}, {"x":8.75, "y":1}, {"x":9.75, "y":1}, {"label":"2.25u", "x":10.75, "y":1, "w":2.25}, {"label":"2.25u", "x":0, "y":2, "w":2.25}, {"x":2.25, "y":2}, {"x":3.25, "y":2}, {"x":4.25, "y":2}, {"x":5.25, "y":2}, {"x":6.25, "y":2}, {"x":7.25, "y":2}, {"x":8.25, "y":2}, {"x":9.25, "y":2}, {"x":10.25, "y":2}, {"label":"1.75u", "x":11.25, "y":2, "w":1.75}, {"label":"1.25u", "x":0, "y":3, "w":1.25}, {"label":"1u", "x":1.25, "y":3}, {"label":"1.25u", "x":2.25, "y":3, "w":1.25}, {"label":"2.25u", "x":3.5, "y":3, "w":2.25}, {"label":"1u", "x":5.75, "y":3}, {"label":"2.75u", "x":6.75, "y":3, "w":2.75}, {"label":"1.25u", "x":9.5, "y":3, "w":1.25}, {"label":"1u", "x":10.75, "y":3}, {"label":"1.25u", "x":11.75, "y":3, "w":1.25}, {"label":"Enc1", "x":14, "y":3}, {"label":"Enc2", "x":15, "y":3}]
+ },
+ "LAYOUT_ansi_40": {
+ "layout": [{"label":"1.5u", "x":0, "y":0, "w":1.5}, {"x":1.5, "y":0}, {"x":2.5, "y":0}, {"x":3.5, "y":0}, {"x":4.5, "y":0}, {"x":5.5, "y":0}, {"x":6.5, "y":0}, {"x":7.5, "y":0}, {"x":8.5, "y":0}, {"x":9.5, "y":0}, {"x":10.5, "y":0}, {"label":"1.5u", "x":11.5, "y":0, "w":1.5}, {"label":"1.75u", "x":0, "y":1, "w":1.75}, {"x":1.75, "y":1}, {"x":2.75, "y":1}, {"x":3.75, "y":1}, {"x":4.75, "y":1}, {"x":5.75, "y":1}, {"x":6.75, "y":1}, {"x":7.75, "y":1}, {"x":8.75, "y":1}, {"x":9.75, "y":1}, {"label":"2.25u", "x":10.75, "y":1, "w":2.25}, {"label":"2.25u", "x":0, "y":2, "w":2.25}, {"x":2.25, "y":2}, {"x":3.25, "y":2}, {"x":4.25, "y":2}, {"x":5.25, "y":2}, {"x":6.25, "y":2}, {"x":7.25, "y":2}, {"x":8.25, "y":2}, {"x":9.25, "y":2}, {"x":10.25, "y":2}, {"label":"1.75u", "x":11.25, "y":2, "w":1.75}, {"label":"1.25u", "x":0, "y":3, "w":1.25}, {"label":"1u", "x":1.25, "y":3}, {"label":"1u", "x":2.25, "y":3}, {"label":"6.25u", "x":3.25, "y":3, "w":6.25}, {"label":"1.25u", "x":9.5, "y":3, "w":1.25}, {"label":"1u", "x":10.75, "y":3}, {"label":"1.25u", "x":11.75, "y":3, "w":1.25}, {"label":"Enc1", "x":14, "y":3}, {"label":"Enc2", "x":15, "y":3}]
+ },
+ "LAYOUT_ansi_split_enter": {
+ "layout": [{"label":"1.5u", "x":0, "y":0, "w":1.5}, {"x":1.5, "y":0}, {"x":2.5, "y":0}, {"x":3.5, "y":0}, {"x":4.5, "y":0}, {"x":5.5, "y":0}, {"x":6.5, "y":0}, {"x":7.5, "y":0}, {"x":8.5, "y":0}, {"x":9.5, "y":0}, {"x":10.5, "y":0}, {"label":"1.5u", "x":11.5, "y":0, "w":1.5}, {"label":"1.75u", "x":0, "y":1, "w":1.75}, {"x":1.75, "y":1}, {"x":2.75, "y":1}, {"x":3.75, "y":1}, {"x":4.75, "y":1}, {"x":5.75, "y":1}, {"x":6.75, "y":1}, {"x":7.75, "y":1}, {"x":8.75, "y":1}, {"x":9.75, "y":1}, {"label":"1u", "x":10.75, "y":1}, {"label":"1.25u", "x":11.75, "y":1, "w":1.25}, {"label":"2.25u", "x":0, "y":2, "w":2.25}, {"x":2.25, "y":2}, {"x":3.25, "y":2}, {"x":4.25, "y":2}, {"x":5.25, "y":2}, {"x":6.25, "y":2}, {"x":7.25, "y":2}, {"x":8.25, "y":2}, {"x":9.25, "y":2}, {"x":10.25, "y":2}, {"label":"1.75u", "x":11.25, "y":2, "w":1.75}, {"label":"1.25u", "x":0, "y":3, "w":1.25}, {"label":"1u", "x":1.25, "y":3}, {"label":"1u", "x":2.25, "y":3}, {"label":"6.25u", "x":3.25, "y":3, "w":6.25}, {"label":"1.25u", "x":9.5, "y":3, "w":1.25}, {"label":"1u", "x":10.75, "y":3}, {"label":"1.25u", "x":11.75, "y":3, "w":1.25}, {"label":"Enc1", "x":14, "y":3}, {"label":"Enc2", "x":15, "y":3}]
+ }
+ },
+ "encoder": {
+ "rotary": [
+ { "pin_a": "D3", "pin_b": "D2", "resolution": 4 }
+ ]
+ }
+}
diff --git a/keyboards/sthlmkb/litl/keymaps/default/keymap.c b/keyboards/sthlmkb/litl/keymaps/default/keymap.c
new file mode 100644
index 0000000000..2c6ae5d35a
--- /dev/null
+++ b/keyboards/sthlmkb/litl/keymaps/default/keymap.c
@@ -0,0 +1,37 @@
+/* Copyright 2022 mohoyt
+ *
+ * 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
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [0] = LAYOUT_all(
+ 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,
+ LSFT_T(KC_GRV), KC_SLSH, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_RSFT,
+ KC_LCTL, KC_LGUI, KC_LALT, LT(1, KC_SPC), MO(2), LT(1, KC_SPC), KC_RALT, KC_RGUI, KC_RCTL, KC_MPLY, KC_MUTE ),
+
+ [1] = LAYOUT_all(
+ KC_ESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_UP, KC_UP, KC_MINS, KC_EQL, KC_QUOT, KC_ENT,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_LEFT, KC_DOWN, KC_RIGHT, KC_EQL, KC_SLSH, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_MPLY, KC_MUTE ),
+
+ [2] = LAYOUT_all(
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_NO , KC_UP, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS, KC_TRNS, KC_NO , KC_LEFT, KC_DOWN, KC_RIGHT, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_UP, KC_UP,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_LEFT, KC_DOWN, KC_RIGHT, KC_TRNS, KC_TRNS )
+};
+
diff --git a/keyboards/sthlmkb/litl/litl.c b/keyboards/sthlmkb/litl/litl.c
new file mode 100644
index 0000000000..40aedfbe27
--- /dev/null
+++ b/keyboards/sthlmkb/litl/litl.c
@@ -0,0 +1,30 @@
+/* Copyright 2022 mohoyt
+ *
+ * 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 "litl.h"
+
+#ifdef ENCODER_ENABLE
+bool encoder_update_kb(uint8_t index, bool clockwise) {
+ if (!encoder_update_user(index, clockwise)) { return false; }
+ if (index == 0) {
+ if (clockwise) {
+ tap_code_delay(KC_VOLU, 10);
+ } else {
+ tap_code_delay(KC_VOLD, 10);
+ }
+ }
+ return true;
+}
+#endif
diff --git a/keyboards/sthlmkb/litl/litl.h b/keyboards/sthlmkb/litl/litl.h
new file mode 100644
index 0000000000..3cbc5620d1
--- /dev/null
+++ b/keyboards/sthlmkb/litl/litl.h
@@ -0,0 +1,108 @@
+/* Copyright 2022 mohoyt
+ *
+ * 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 "quantum.h"
+
+#define _x_ KC_NO
+
+/* This a shortcut to help you visually see your layout.
+ *
+ * The first section contains all of the arguments representing the physical
+ * layout of the board and position of the keys.
+ *
+ * The second converts the arguments into a two-dimensional array which
+ * represents the switch matrix.
+ */
+#define LAYOUT_all( \
+ K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, \
+ K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, \
+ K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, \
+ K30, K31, K32, K34, K35, K36, K37, K38, K39, K3A, K3B \
+) { \
+{ K00, K02, K04, K06, K08, K0A, }, \
+{ K01, K03, K05, K07, K09, K0B, }, \
+{ K10, K12, K14, K16, K18, K1A, }, \
+{ K11, K13, K15, K17, K19, K1B, }, \
+{ K20, K22, K24, K26, K28, K2A, }, \
+{ K21, K23, K25, K27, K29, K2B, }, \
+{ K30, K32, K34, K36, K38, K3A, }, \
+{ K31, _x_, K35, K37, K39, K3B, } \
+}
+
+#define LAYOUT_ansi_40( \
+ K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, \
+ K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1B, \
+ K20, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, \
+ K30, K31, K32, K35, K36, K38, K39, K3A, K3B \
+) { \
+{ K00, K02, K04, K06, K08, K0A, }, \
+{ K01, K03, K05, K07, K09, K0B, }, \
+{ K10, K12, K14, K16, K18, K1A, }, \
+{ K11, K13, K15, K17, K19, K1B, }, \
+{ K20, K22, K24, K26, K28, K2A, }, \
+{ K21, K23, K25, K27, K29, K2B, }, \
+{ K30, K32, K34, K36, K38, K3A, }, \
+{ K31, _x_, K35, K37, K39, K3B, } \
+}
+
+#define LAYOUT_ansi_split_lshift( \
+ K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, \
+ K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1B, \
+ K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, \
+ K30, K31, K32, K35, K36, K38, K39, K3A, K3B \
+) { \
+{ K00, K02, K04, K06, K08, K0A, }, \
+{ K01, K03, K05, K07, K09, K0B, }, \
+{ K10, K12, K14, K16, K18, K1A, }, \
+{ K11, K13, K15, K17, K19, K1B, }, \
+{ K20, K22, K24, K26, K28, K2A, }, \
+{ K21, K23, K25, K27, K29, K2B, }, \
+{ K30, K32, K34, K36, K38, K3A, }, \
+{ K31, _x_, K35, K37, K39, K3B, } \
+}
+
+#define LAYOUT_ansi_split_space( \
+ K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, \
+ K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1B, \
+ K20, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, \
+ K30, K31, K32, K34, K35, K36, K37, K38, K39, K3A, K3B \
+) { \
+{ K00, K02, K04, K06, K08, K0A, }, \
+{ K01, K03, K05, K07, K09, K0B, }, \
+{ K10, K12, K14, K16, K18, K1A, }, \
+{ K11, K13, K15, K17, K19, K1B, }, \
+{ K20, K22, K24, K26, K28, K2A, }, \
+{ K21, K23, K25, K27, K29, K2B, }, \
+{ K30, K32, K34, K36, K38, K3A, }, \
+{ K31, _x_, K35, K37, K39, K3B, } \
+}
+
+#define LAYOUT_ansi_split_enter( \
+ K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, \
+ K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, \
+ K20, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, \
+ K30, K31, K32, K35, K36, K38, K39, K3A, K3B \
+) { \
+{ K00, K02, K04, K06, K08, K0A, }, \
+{ K01, K03, K05, K07, K09, K0B, }, \
+{ K10, K12, K14, K16, K18, K1A, }, \
+{ K11, K13, K15, K17, K19, K1B, }, \
+{ K20, K22, K24, K26, K28, K2A, }, \
+{ K21, K23, K25, K27, K29, K2B, }, \
+{ K30, K32, K34, K36, K38, K3A, }, \
+{ K31, _x_, K35, K37, K39, K3B, } \
+}
diff --git a/keyboards/sthlmkb/litl/readme.md b/keyboards/sthlmkb/litl/readme.md
new file mode 100644
index 0000000000..e04e229c73
--- /dev/null
+++ b/keyboards/sthlmkb/litl/readme.md
@@ -0,0 +1,15 @@
+# litl
+
+
+
+Litl is an easy to build 40% keyboard using only through hole components. It uses a separate microcontroller (like the Pro Micro or Elite C) to enable flexibility in connectivity and to further simplify the soldering experience (no more tricksy USB ports).
+
+* Keyboard Maintainer: [mohoyt](https://github.com/mohoyt)
+* Hardware Supported: litl, Pro Micro, Elite-C, Puchi-C, Nice!Nano
+* Hardware Availability: [sthlm kb](https://sthlmkb.com)
+
+Make example for this keyboard (after setting up your build environment):
+
+ make sthlmkb/litl: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).
diff --git a/keyboards/sthlmkb/litl/rules.mk b/keyboards/sthlmkb/litl/rules.mk
new file mode 100644
index 0000000000..6e7633bfe0
--- /dev/null
+++ b/keyboards/sthlmkb/litl/rules.mk
@@ -0,0 +1 @@
+# This file intentionally left blank