[Keyboard] Io mini1800 (#16115)

* First commit

* first commit

* 2x3u layout functional

* 625u layout

* rotary encoder

* Modifications to keymaps

* Remove ingrained from io_mini branch

* Update readme

* Update info.json

* change hardware availability

* Change rules.mk wording to match other PR

* Update keyboards/io_mini1800/rules.mk

* Update keyboards/io_mini1800/keymaps/default/keymap.c

* Update keyboards/io_mini1800/keymaps/2x3u/keymap.c

* Update keyboards/io_mini1800/io_mini1800.c

* Update keyboards/io_mini1800/keymaps/2x3u/readme.md

* Update keyboards/io_mini1800/readme.md

keyboards/io_mini1800/config.h

@@ -0,0 +1,40 @@
+// Copyright 2022 s8erdude (@jpuerto96)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID    0xFEED
+#define PRODUCT_ID   0x0000
+#define DEVICE_VER   0x0001
+#define MANUFACTURER jpuerto96
+#define PRODUCT      io_mini1800
+
+/* key matrix size */
+#define MATRIX_ROWS 10
+#define MATRIX_COLS 10
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+ */
+#define MATRIX_ROW_PINS { D6, D7, B4, B5, D4, E6, B3, D2, D5, D3 }
+#define MATRIX_COL_PINS { D1, D0, B7, B2, F0, F1, F7, F6, F4, F5 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+#define ENCODERS_PAD_A { B0 }
+#define ENCODERS_PAD_B { B1 }
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5