[Keyboard] Rotr (#9546)

* Add files via upload

* Add files via upload

Edited code to fix the formatting so that it follows the conventions.

* Create README.md

* Update config.h

* Update keyboards/rotr/config.h

* Update keyboards/rotr/config.h

* Update keyboards/rotr/config.h

* Update keyboards/rotr/kb.h

* Update keyboards/rotr/keymaps/default/keymap.c

* Update keyboards/rotr/keymaps/default/keymap.c

* Update keyboards/rotr/rules.mk

* Update keyboards/rotr/keymaps/default/keymap.c

* Update keyboards/rotr/kb.c

* Delete Makefile

* Rename kb.c to rotr.c

* Rename kb.h to rotr.h

* Update rules.mk

* Rename README.md to readme.md

* Create info.json

* Update keyboards/rotr/keymaps/default/keymap.c

* Update keyboards/rotr/readme.md

* Update keyboards/rotr/readme.md

* Update keyboards/rotr/readme.md

* Update keymap.c

* Update rotr.c

* Update info.json

* Update keyboards/rotr/readme.md

7 files changed, 135 insertions, 0 deletions

diff --git a/keyboards/rotr/config.h b/keyboards/rotr/config.h
new file mode 100644
index 000000000..e488a4406
--- /dev/null
+++ b/keyboards/rotr/config.h
@@ -0,0 +1,46 @@
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0x726F
+#define PRODUCT_ID      0x0001
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    ROTR
+#define PRODUCT         ROTR
+#define DESCRIPTION     Macro Pad and Big Knob
+
+/* key matrix size */
+#define MATRIX_ROWS 1
+#define MATRIX_COLS 3
+
+/* key matrix pins */
+#define MATRIX_ROW_PINS { E6 }
+#define MATRIX_COL_PINS { D1, D0, D4 }
+
+/*Rotary Encoder Pins*/
+#define ENCODERS_PAD_A { C6 }
+#define ENCODERS_PAD_B { D7 }
+
+/*Sets the number of pulses per increment*/
+#define ENCODER_RESOLUTION 2
+
+#define UNUSED_PINS
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* number of backlight levels */
+
+#ifdef BACKLIGHT_PIN
+#define BACKLIGHT_LEVELS 3
+#endif
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
diff --git a/keyboards/rotr/info.json b/keyboards/rotr/info.json
new file mode 100644
index 000000000..b95e8cede
--- /dev/null
+++ b/keyboards/rotr/info.json
@@ -0,0 +1,12 @@
+{
+    "keyboard_name": "rotr", 
+    "url": "https://geekhack.org/index.php?topic=107104.0", 
+    "maintainer": "qmk", 
+    "width": 3, 
+    "height": 1, 
+    "layouts": {
+        "LAYOUT": {
+            "layout": [{"x":0, "y":0}, {"x":1, "y":0}, {"x":2, "y":0}]
+        }
+    }
+}
diff --git a/keyboards/rotr/keymaps/default/keymap.c b/keyboards/rotr/keymaps/default/keymap.c
new file mode 100644
index 000000000..cceb12646
--- /dev/null
+++ b/keyboards/rotr/keymaps/default/keymap.c
@@ -0,0 +1,7 @@
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    LAYOUT(
+        KC_MPRV, KC_MPLY, KC_MNXT
+    )
+};
diff --git a/keyboards/rotr/readme.md b/keyboards/rotr/readme.md
new file mode 100644
index 000000000..a3e943fd3
--- /dev/null
+++ b/keyboards/rotr/readme.md
@@ -0,0 +1,20 @@
+# ROTR
+
+![ROTR](https://i.imgur.com/051liRCl.jpg)
+
+A macro pad with a multipurpose knob.
+
+* Keyboard Maintainer: [kwlodarczyk](https://github.com/kwlodarczy)
+* Hardware: [Geekhack](https://geekhack.org/index.php?topic=107104.0)
+
+## Features:
+* Minimal design with plug and play functionality.
+* Frictionless, solid brass knob.
+* Hot swappable switches.
+* USB C connection.
+
+Make example for this keyboard (after setting up your build environment):
+
+    make rotr: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/rotr/rotr.c b/keyboards/rotr/rotr.c
new file mode 100644
index 000000000..2097bd9c1
--- /dev/null
+++ b/keyboards/rotr/rotr.c
@@ -0,0 +1,9 @@
+#include "rotr.h"
+
+void encoder_update_kb(uint8_t index, bool clockwise) {
+    if (clockwise) {
+        tap_code(KC_VOLU);
+    } else {
+        tap_code(KC_VOLD);
+    }
+}
diff --git a/keyboards/rotr/rotr.h b/keyboards/rotr/rotr.h
new file mode 100644
index 000000000..bf2ff1292
--- /dev/null
+++ b/keyboards/rotr/rotr.h
@@ -0,0 +1,9 @@
+#pragma once
+
+#include "quantum.h"
+
+#define LAYOUT( \
+	K00, K01, K02  \
+) { \
+	{ K00,   K01,   K02 }  \
+}
diff --git a/keyboards/rotr/rules.mk b/keyboards/rotr/rules.mk
new file mode 100644
index 000000000..18d378ed7
--- /dev/null
+++ b/keyboards/rotr/rules.mk
@@ -0,0 +1,32 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = caterina
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes      # Virtual DIP switch configuration
+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
+# 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 = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+MIDI_ENABLE = no            # MIDI support
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no           # Audio output
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+ENCODER_ENABLE = yes        # Enables Rotary Encoder support