Adding SdraKb00 keyboard (#24552)

Co-authored-by: jack <jack@pngu.org>
Co-authored-by: Duncan Sutherland <dunk2k_2000@hotmail.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/keyboards/sdrakbs/sdrakb00/keymaps/default/keymap.c b/keyboards/sdrakbs/sdrakb00/keymaps/default/keymap.c
new file mode 100644
index 0000000000..c5481b1076
--- /dev/null
+++ b/keyboards/sdrakbs/sdrakb00/keymaps/default/keymap.c
@@ -0,0 +1,74 @@
+// Copyright 2023 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+
+/* Keymap for 3x4 Macropad
+ *
+ * Layer 0 (Base Layer) - Numpad layout with mute button and layer toggle:
+ * ,----------------------,
+ * |   7   |   8   |   9   |  MUTE  |
+ * |-------+-------+-------+--------|
+ * |   4   |   5   |   6   | Layer1 |
+ * |-------+-------+-------+--------|
+ * |   1   |   2   |   3   |   0   |
+ * `-----------------------^--------'
+ *
+ * Layer 1 (Function Layer) - Accessed by holding MO(1):
+ * ,----------------------,
+ * | BKSP  |   /   |   -   |  ----  |
+ * |-------+-------+-------+--------|
+ * |   =   |   *   |   +   |  ----  |
+ * |-------+-------+-------+--------|
+ * | ENTER |  ---- |  ---- |   .    |
+ * `-----------------------^--------'
+ *
+ * The base layer (0) provides standard numpad functionality with:
+ * - Numbers 0-9 in traditional numpad layout
+ * - Mute button in top right
+ * - Layer 1 momentary toggle (MO1) in middle right
+ *
+ * The function layer (1) adds:
+ * - Basic mathematical operators (+, -, *, /)
+ * - Backspace, Enter, and decimal point
+ * - Equal sign for calculations
+ * - Empty slots marked as ---- (KC_NO)
+ */
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+    [0] = LAYOUT_ortho_3x4(
+        KC_KP_7,    KC_KP_8,    KC_KP_9,    KC_MUTE,
+        KC_KP_4,    KC_KP_5,    KC_KP_6,    MO(1),
+        KC_KP_1,    KC_KP_2,    KC_KP_3,    KC_KP_0
+    ),
+
+    [1] = LAYOUT_ortho_3x4(
+        KC_BACKSPACE, KC_KP_SLASH,    KC_KP_MINUS, _______,
+        KC_EQUAL,     KC_KP_ASTERISK, KC_KP_PLUS,  _______,
+        KC_ENTER,     _______,          _______,       KC_KP_DOT
+    )
+};
+
+
+/*
+ * Handle layer state changes by updating RGB matrix colors
+ *
+ * Sets RGB matrix colors based on active layer:
+ * - Layer 0: Light green (#88FB7A)
+ * - Layer 1: Red
+ * - Other layers: Red (fallback)
+ */
+layer_state_t layer_state_set_user(layer_state_t state) {
+    switch (get_highest_layer(state)) {
+    case 0:
+        rgb_matrix_sethsv(85, 255, 251); // #88FB7A for layer 0
+        break;
+    case 1:
+        rgb_matrix_sethsv(0, 255, 255); // Red for layer 1
+        break;
+    default:
+        rgb_matrix_sethsv(0, 255, 255); // Red for any other layer
+        break;
+    }
+    return state;
+}