😵‍💫

.editorconfig

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+# EditorConfig is awesome: https://EditorConfig.org
+root = true
+
+# for all projects
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+# C++
+[{*.cpp,*.ino,*.hpp}]
+indent_style = space
+indent_size = 2
+
+# Markdown
+[*.md]
+trim_trailing_whitespace = false

.gitignore

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+build/

LICENSE

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+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org>

README.md

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+---
+gitea: none
+include_toc: true
+---
+
+# 💡 LED Panel
+
+...
+
+
+## ✨ Requirements
+
+* 🟡 `Adafruit_NeoPixel` [1.13.0](https://github.com/adafruit/Adafruit_NeoPixel/releases/tag/1.13.0)

compile.sh

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+#!/bin/sh
+
+BUILD_DIR="./build"
+BOARD="arduino:avr:uno"
+PROJECT_PATH="./src/LED_Panel"
+
+arduino-cli compile --output-dir $BUILD_DIR -b $BOARD $PROJECT_PATH

src/LED_Panel/.clang-format

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+Language: Cpp
+BasedOnStyle: LLVM
+IndentWidth: 2
+ColumnLimit: 132
+SortIncludes: true
+AlignAfterOpenBracket: DontAlign
+AllowShortIfStatementsOnASingleLine: AllIfsAndElse
+AllowShortLoopsOnASingleLine: true

src/LED_Panel/LED_Panel.ino

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+/*
+  Author: Alexander Popov aka iiiypuk aka i3k
+  Repo: https://git.a2s.su/Pix-Backpack/LED-Panel
+  License: Public Domain
+*/
+
+#include <Adafruit_NeoPixel.h>
+
+#include "config.hpp"
+
+Adafruit_NeoPixel pixels = Adafruit_NeoPixel(LED_COUNT, PIN, NEO_GRB + NEO_KHZ800);
+
+void setup() {
+  pixels.begin();
+  pixels.show(); // disable all LED
+}
+
+void loop() {
+  for (int i = 0; i < LED_COUNT - 1; i++) {
+    pixels.setPixelColor(i - 1, pixels.Color(0, 0, 0));
+    pixels.setPixelColor(i, pixels.Color(255, 0, 0));
+    pixels.show();
+    delay(100);
+  }
+}

src/LED_Panel/config.hpp

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+const uint8_t PIN = 6;                     // DIN PIN
+const uint8_t WIDTH = 16;                  // LED matrix width
+const uint8_t HEIGHT = 20;                 // LED matrix height
+const uint16_t LED_COUNT = WIDTH * HEIGHT; // LED count

upload.sh

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+#!/bin/sh
+
+BUILD_DIR="./build"
+BOARD="arduino:avr:uno"
+PORT="/dev/ttyACM0"
+
+arduino-cli upload -b $BOARD -p $PORT --input-dir $BUILD_DIR