来一段使用Arduino Uno驱动WS2812B灯珠的代码，要求不能用库

好的，以下是使用Arduino Uno驱动WS2812B灯珠的代码，不使用任何库：

//定义WS2812B的数据引脚
#define LED_PIN 6

//定义灯珠数量
#define LED_NUM 10

//定义颜色数据数组
uint8_t colors[LED_NUM][3];

//发送数据到灯珠
void send_data() {
  //关闭中断
  cli();
  //发送颜色数据
  for (int i = 0; i < LED_NUM; i++) {
    for (int j = 7; j >= 0; j--) {
      if (colors[i][1] & (1 << j)) {
        digitalWrite(LED_PIN, HIGH);
        delayMicroseconds(0.8);
        digitalWrite(LED_PIN, LOW);
        delayMicroseconds(0.45);
      } else {
        digitalWrite(LED_PIN, HIGH);
        delayMicroseconds(0.4);
        digitalWrite(LED_PIN, LOW);
        delayMicroseconds(0.85);
      }
    }
    for (int j = 7; j >= 0; j--) {
      if (colors[i][0] & (1 << j)) {
        digitalWrite(LED_PIN, HIGH);
        delayMicroseconds(0.8);
        digitalWrite(LED_PIN, LOW);
        delayMicroseconds(0.45);
      } else {
        digitalWrite(LED_PIN, HIGH);
        delayMicroseconds(0.4);
        digitalWrite(LED_PIN, LOW);
        delayMicroseconds(0.85);
      }
    }
    for (int j = 7; j >= 0; j--) {
      if (colors[i][2] & (1 << j)) {
        digitalWrite(LED_PIN, HIGH);
        delayMicroseconds(0.8);
        digitalWrite(LED_PIN, LOW);
        delayMicroseconds(0.45);
      } else {
        digitalWrite(LED_PIN, HIGH);
        delayMicroseconds(0.4);
        digitalWrite(LED_PIN, LOW);
        delayMicroseconds(0.85);
      }
    }
  }
  //恢复中断
  sei();
}

void setup() {
  pinMode(LED_PIN, OUTPUT);
  //初始化颜色数据
  for (int i = 0; i < LED_NUM; i++) {
    colors[i][0] = 0;
    colors[i][1] = 0;
    colors[i][2] = 0;
  }
}

void loop() {
  //设置颜色数据
  colors[0][0] = 255;
  colors[1][1] = 255;
  colors[2][2] = 255;
  colors[3][0] = 255;
  colors[4][1] = 255;
  colors[5][2] = 255;
  colors[6][0] = 255;
  colors[7][1] = 255;
  colors[8][2] = 255;
  colors[9][0] = 255;
  //发送数据到灯珠
  send_data();
  //延时
  delay(1000);
}

注意：这只是一个简单的例子，实际应用中需要根据自己的需求进行相应的修改。