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<aside> 💡 R4버전을 오류없이 사용하려면 IDE버젼을 최신으로 유지해야 함

</aside>

1. R4를 구매하는 결정적 이유

1-1. 매우 매력적인가??

Untitled

1-2. 테트리스 애니메이션으로 test


#include "Arduino_LED_Matrix.h"
#include <stdint.h>

ArduinoLEDMatrix matrix;

const uint32_t frames[][4] = {
  {
    0xe0000000,
    0x0,
    0x0,
    66
  },
  {
    0x400e0000,
    0x0,
    0x0,
    66
  },
  {
    0x400e0,
    0x0,
    0x0,
    66
  },
  {
    0x40,
    0xe000000,
    0x0,
    66
  },
  {
    0x3000000,
    0x400e000,
    0x0,
    66
  },
  {
    0x3003000,
    0x400e,
    0x0,
    66
  },
  {
    0x3003,
    0x4,
    0xe00000,
    66
  },
  {
    0x3,
    0x300000,
    0x400e00,
    66
  },
  {
    0x0,
    0x300300,
    0x400e00,
    66
  },
  {
    0x1c000000,
    0x300,
    0x30400e00,
    66
  },
  {
    0x401c000,
    0x0,
    0x30430e00,
    66
  },
  {
    0x401c,
    0x0,
    0x430e30,
    66
  },
  {
    0x4,
    0x1c00000,
    0x430e30,
    66
  },
  {
    0x0,
    0x401c00,
    0x430e30,
    66
  },
  {
    0x800000,
    0x401,
    0xc0430e30,
    66
  },
  {
    0x800800,
    0x0,
    0x405f0e30,
    66
  },
  {
    0x800800,
    0x80000000,
    0x470ff0,
    66
  },
  {
    0x800800,
    0x80080000,
    0x470ff0,
    66
  },
  {
    0x800,
    0x80080080,
    0x470ff0,
    66
  },
  {
    0x38000000,
    0x80080080,
    0x8470ff0,
    66
  },
  {
    0x10038000,
    0x80080,
    0x8478ff0,
    66
  },
  {
    0x10038,
    0x80,
    0x8478ff8,
    66
  },
  {
    0x700010,
    0x3800080,
    0x8478ff8,
    66
  },
  {
    0x400700,
    0x1003880,
    0x8478ff8,
    66
  },
  {
    0x400,
    0x70001083,
    0x88478ff8,
    66
  },
  {
    0xf000000,
    0x40070081,
    0x87f8ff8,
    66
  },
  {
    0xf000,
    0x400f1,
    0x87f8ff8,
    66
  },
  {
    0x8000000f,
    0xc1,
    0xf7f8ff8,
    66
  },
  {
    0xc0080000,
    0xf00081,
    0xc7ffff8,
    66
  },
  {
    0x400c0080,
    0xf81,
    0x87fcfff,
    66
  },
  {
    0x3400c0,
    0x8000081,
    0xf87fcfff,
    66
  },
  {
    0x20200340,
    0xc008081,
    0xf87fcfff,
    66
  },
  {
    0x38220200,
    0x3400c089,
    0xf87fcfff,
    66
  },
  {
    0x38220,
    0x2003408d,
    0xf8ffcfff,
    66
  },
  {
    0x86100038,
    0x220240bd,
    0xf8ffcfff,
    66
  },
  {
    0xec186100,
    0x38260ad,
    0xfbffcfff,
    66
  },
  {
    0x3ec186,
    0x100078af,
    0xfaffffff,
    66
  },
  {
    0x114003ec,
    0x186178af,
    0xfaffffff,
    66
  },
  {
    0x3b411400,
    0x3ec1febf,
    0xfaffffff,
    66
  },
  {
    0x143b411,
    0x4ec3febf,
    0xfbffffff,
    66
  },
  {
    0xc040143b,
    0x4fd7febf,
    0xfbffffff,
    66
  },
  {
    0xc60c0439,
    0x4ff7ffff,
    0xfbffffff,
    66
  },
  {
    0x33c60f9,
    0x4ff7ffff,
    0xffffffff,
    66
  },
  {
    0x3cbc33ff,
    0x4ff7ffff,
    0xffffffff,
    66
  },
  {
    0x8ffbff,
    0x7ff7ffff,
    0xffffffff,
    66
  },
  {
    0xf0cffbff,
    0xfff7ffff,
    0xffffffff,
    66
  },
  {
    0xfe1fffff,
    0xffffffff,
    0xffffffff,
    66
  },
  {
    0xffffffff,
    0xffffffff,
    0xffffffff,
    66
  },
  {
    0x7fffffff,
    0xffffffff,
    0xfffff7ff,
    66
  },
  {
    0x3fe7ffff,
    0xffffffff,
    0xff7ff3fe,
    66
  },
  {
    0x1fc3fe7f,
    0xfffffff7,
    0xff3fe1fc,
    66
  },
  {
    0xf81fc3f,
    0xe7ff7ff3,
    0xfe1fc0f8,
    66
  },
  {
    0x500f81f,
    0xc3fe3fe1,
    0xfc0f8070,
    66
  },
  {
    0x500f,
    0x81fc1fc0,
    0xf8070020,
    66
  },
  {
    0x5,
    0xf80f80,
    0x70020000,
    66
  },
  {
    0x5,
    0xa80880,
    0x50020000,
    600
  },
  {
    0xd812,
    0x41040880,
    0x50020000,
    200
  },
  {
    0x5,
    0xa80880,
    0x50020000,
    0xFFFFFFFF
  }
};

void setup() {
  Serial.begin(115200);
  // you can also load frames at runtime, without stopping the refresh
  matrix.loadSequence(frames);
  matrix.begin();
  // turn on autoscroll to avoid calling next() to show the next frame; the parameter is in milliseconds
  // matrix.autoscroll(300);
  matrix.play(true);
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop() {
  digitalWrite(LED_BUILTIN, HIGH);
  delay(1000);
  digitalWrite(LED_BUILTIN, LOW);
  delay(1000);
}

2. LED 제어 익히기

2-1. UNO R4 WiFi LED 매트릭스 사용의 전체흐름

<aside> 💡 1. 매트릭스 초기화 2. LED 매트릭스 개체 생성 3. begin메서드로 시작 4. 프레임을 사용한 제어

</aside>

#include "Arduino_LED_Matrix.h"

//객체를 만드는 부분
ArduinoLEDMatrix matrix;

void setup() {
  Serial.begin(115200);
  matrix.begin();
}

void loop(){
  
}