[Keyboard] Added Handwired Redragon K552 Kumara (RGB) (#14004)

* Added Handwired Redragon K552 with default and via keymaps

* Resolve some request changes, and change the cols pin to a better one.

* Resolved request changes

* Added OLED support and resolve request change

* Increase polling rate to 1000hz

* Update font for OLED, and change logo

* Added LED Underglow support

* Add personal custom keymap

* Nit some line, to get better way to look on code

* Refactor everything and solved some issue.

* Resolved issue

1 files changed, 68 insertions, 0 deletions

diff --git a/keyboards/handwired/horrortroll/k552/keymaps/default/led/kitt.c b/keyboards/handwired/horrortroll/k552/keymaps/default/led/kitt.c
new file mode 100644
index 0000000000..823eb5839b
--- /dev/null
+++ b/keyboards/handwired/horrortroll/k552/keymaps/default/led/kitt.c
@@ -0,0 +1,68 @@
+/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * 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/>.
+ */
+
+// variable for startup animation
+bool BASE_EFFECT_NOT_STARTED_YET = true;
+uint8_t base_effect_startup_counter = 255;
+
+uint8_t led_count = 10;
+uint8_t led_first = 7;
+
+static uint8_t time_to_led(uint8_t time, uint8_t led_behind) {
+    uint16_t led_time = led_count * time;
+    uint16_t step = ((2 * led_count + (led_time / 128)) - led_behind) % (2 * led_count);
+    uint8_t led;
+
+    if (step < led_count) {
+        led = step;
+    } else {
+        led = led_count - 1 - (step - led_count);
+    }
+
+    return led;
+}
+
+static HSV KITT_math(HSV hsv, uint8_t i, uint8_t time) {
+
+    // reset base effect startup
+    if (i == 0) {
+        BASE_EFFECT_NOT_STARTED_YET = true;
+    }
+
+    hsv.h = 0;
+    hsv.s = 255;
+
+    if (i >= led_first && i < led_first + led_count) {
+        uint8_t j = i - led_first;
+        if (j == time_to_led(time, 0)) {
+            hsv.v = hsv.v;
+        } else if (j == time_to_led(time, 1)) {
+            hsv.v = hsv.v/2;
+        } else if (j == time_to_led(time, 2)) {
+            hsv.v = hsv.v/4;
+        } else if (j == time_to_led(time, 3)) {
+            hsv.v = hsv.v/8;
+        } else {
+            hsv.v = 0;
+        }
+    } else {
+        hsv.v = 0;
+    }
+
+    return hsv;
+}
+
+bool KITT(effect_params_t* params) { return effect_runner_i(params, &KITT_math); }