Add new keyboard AT3 (#17431)

Co-authored-by: zvecr <git@zvecr.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

8 files changed, 236 insertions, 0 deletions

diff --git a/keyboards/atset/at3/at3.c b/keyboards/atset/at3/at3.c
new file mode 100644
index 0000000000..18a5182f0f
--- /dev/null
+++ b/keyboards/atset/at3/at3.c
@@ -0,0 +1,15 @@
+/* 
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+#include "at3.h"
diff --git a/keyboards/atset/at3/at3.h b/keyboards/atset/at3/at3.h
new file mode 100644
index 0000000000..817b154483
--- /dev/null
+++ b/keyboards/atset/at3/at3.h
@@ -0,0 +1,22 @@
+/* 
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+#include "quantum.h"
+
+#define LAYOUT( \
+      k00, k01, k02 \
+) \
+{ \
+    { k00, k01, k02 } \
+} 
+
diff --git a/keyboards/atset/at3/config.h b/keyboards/atset/at3/config.h
new file mode 100644
index 0000000000..3c7fa4abb6
--- /dev/null
+++ b/keyboards/atset/at3/config.h
@@ -0,0 +1,76 @@
+/*
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED // Atset
+#define PRODUCT_ID      0x6060
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Atset
+#define PRODUCT         AT3
+
+/* Key matrix size */
+#define MATRIX_ROWS 1
+#define MATRIX_COLS 3
+
+#define MATRIX_ROW_PINS { D2 }
+#define MATRIX_COL_PINS { B6, B5, B4 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION COL2ROW
+
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+
+/* 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
+
+/* If defined, GRAVE_ESC will always act as ESC when CTRL is held.
+ * This is userful for the Windows task manager shortcut (ctrl+shift+esc).
+ */
+// #define GRAVE_ESC_CTRL_OVERRIDE
+
+/*
+ * Force NKRO
+ *
+ * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
+ * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
+ * makefile for this to work.)
+ *
+ * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
+ * until the next keyboard reset.
+ *
+ * NKRO may prevent your keystrokes from being detected in the BIOS, but it is
+ * fully operational during normal computer usage.
+ *
+ * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
+ * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by
+ * bootmagic, NKRO mode will always be enabled until it is toggled again during a
+ * power-up.
+
+ */
+//#define FORCE_NKRO
+
diff --git a/keyboards/atset/at3/info.json b/keyboards/atset/at3/info.json
new file mode 100644
index 0000000000..2cceb5cb84
--- /dev/null
+++ b/keyboards/atset/at3/info.json
@@ -0,0 +1,9 @@
+{
+  "keyboard_name": "AT3",
+  "maintainer": "atset",
+  "layouts": {
+    "LAYOUT": {
+      "layout": [{"label":"k00", "x":0, "y":0}, {"label":"k01", "x":1, "y":0}, {"label":"k02", "x":2, "y":0}]
+    }
+  }
+}
\ No newline at end of file
diff --git a/keyboards/atset/at3/keymaps/default/keymap.c b/keyboards/atset/at3/keymaps/default/keymap.c
new file mode 100644
index 0000000000..57d0ab6db0
--- /dev/null
+++ b/keyboards/atset/at3/keymaps/default/keymap.c
@@ -0,0 +1,36 @@
+/* 
+* 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 <http://www.gnu.org/licenses/>. 
+*/ 
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+
+[0] = LAYOUT(
+  KC_7,    KC_8,    KC_9
+),
+
+	
+[1] = LAYOUT(
+  KC_NO,   KC_NO,   KC_NO
+),
+
+	
+[2] = LAYOUT(
+  KC_NO,   KC_NO,   KC_NO
+)
+
+
+};
diff --git a/keyboards/atset/at3/keymaps/via/keymap.c b/keyboards/atset/at3/keymaps/via/keymap.c
new file mode 100644
index 0000000000..8d16b57bd7
--- /dev/null
+++ b/keyboards/atset/at3/keymaps/via/keymap.c
@@ -0,0 +1,35 @@
+/* 
+* 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 <http://www.gnu.org/licenses/>. 
+*/ 
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [0] =
+        LAYOUT( 
+                KC_7 , KC_8 , KC_9
+              ),
+    [1] =
+        LAYOUT(
+                KC_NO , KC_NO, KC_NO
+              ),
+    [2] =
+        LAYOUT(
+                KC_NO , KC_NO, KC_NO
+              ),
+    [3] =
+        LAYOUT(
+                KC_NO , KC_NO, KC_NO
+              )
+};
diff --git a/keyboards/atset/at3/readme.md b/keyboards/atset/at3/readme.md
new file mode 100644
index 0000000000..f33bda8df3
--- /dev/null
+++ b/keyboards/atset/at3/readme.md
@@ -0,0 +1,25 @@
+# ATSET AT3
+
+A special 3 key keyboard powered by QMK.
+
+* Keyboard Maintainer: [ATSET](https://github.com/anubhavd7)
+* Hardware Supported: ATmega32U4
+* Hardware Availability: Interest Check
+
+Make example for this keyboard (after setting up your build environment):
+
+    make atset/at3:default
+
+Flashing example for this keyboard:
+
+    make atset/at3: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 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
+* **Keycode in layout**: Press the key mapped to `RESET` if it is available
\ No newline at end of file
diff --git a/keyboards/atset/at3/rules.mk b/keyboards/atset/at3/rules.mk
new file mode 100644
index 0000000000..73ac281e0b
--- /dev/null
+++ b/keyboards/atset/at3/rules.mk
@@ -0,0 +1,18 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = atmel-dfu
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+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
+NKRO_ENABLE = yes           # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output